# AC/DC DIN Rail Power Supply (PSU), ITE, 1 Output, 2 kW, 48 VDC, 45 A

![Product image](https://novapart.co/image/farnell:4410318/)

**URL**: https://novapart.co/products/S8VK-WA20248-SPI/ac-dc-din-rail-power-supply-psu-ite-1-output-2-kw
**SKU**: S8VK-WA20248-SPI
**Manufacturer**: OMRON INDUSTRIAL AUTOMATION
**Price**: €1168.4100
**Stock**: 10+
**Lead Time**: 134 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Product Range | S8VK-W Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 2kW |
| Current, Output 4 | - |
| Input Voltage Vac | 200V AC to 240V AC |
| Power Supply Output Type | Fixed |
| Output Current - Output 1 | 45A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Voltage - Output 1 | 48VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4410318/)

## **Switch Mode Power Supply (2000 W Models) S8VK-WA** 

**Large power, Single-phase Power Supply, supports quick identification of error locations with three status monitoring LEDs.** 

- Can operate at an ambient temperature of -40 to +70°C * 1 

- Side-by-side Mounting enabled * 1 * 2 

- Complies with SEMI F47-0706 standard * 3 

- Certification for 3,000 m altitude * 3 

- Coated PCBs for Better Resistance to Environment 

- Equipped with signal output that indicates DC OK and the overload status 

- *1. For details, refer to _Derating Curves_ on page 9. 

Refer to _Safety Precautions_ on page 11. 

- *2. Refer to the Front, Side-by-side mounting on page 11. 

- *3. For details, refer to _Standard Compliance_ on page 3. 

## **Model Number Structure** 

## **Model Number Legend** 

## **- S8VK WA** @@@ @@ - SPI 

> Series name (1) (2) (3) (4) 

|**(1) Rated input voltage**||**(2) Power rating**|**(2) Power rating**||**(3) Output voltage**|**(3) Output voltage**|
|---|---|---|---|---|---|---|
|**Code**<br>**Rated input voltage**<br>A<br>200 to 240 VAC<br>~~— EE~~|**Code**<br>**Power rating**<br>202<br>2000 W<br>~~EE~~||||**Code**<br>24|**Output voltage (VDC)**<br>24 V|
||||||48|48 V|



## **(4) Number of phases of input voltage** 

|**Code**|**Number of phases of**<br>**input voltage**|
|---|---|
|SPI|Single-phase|



## **Ordering Information** 

## **List of Models** 

|**Power rating**|**Rated input voltage**|**Rated output**<br>**voltage (VDC)**|**Rated output**<br>**current**|**Maximum boost**<br>**current**|**Model**|
|---|---|---|---|---|---|
|2000 W|Single-phase<br>200 to 240 VAC<br>(Allowable range:<br>Single-phase<br>170 to 264 VAC, 240 to 384 VDC)|24 V|85 A|127.5 A|**S8VK-WA20224-SPI**|
|||48 V|45 A|67.5 A|**S8VK-WA20248-SPI**|



**1** 

**S8VK-WA** 

## **Ratings, Characteristics, and Functions** 

||**Power rating**|**Power rating**|**2000 W**|**2000 W**|
|---|---|---|---|---|
|**Item**|**Output voltage (VDC)**||**24 V**|**48 V**|
|**Efficiency*1**||**230 VAC input**|95% typ.|96% typ.|
|**Input**<br>**conditions**|**Input voltage range *2**||Single-phase<br>170 to 264 VAC, 265 to 300 VAC (1 second)<br>240 to 384 VDC||
||**Frequency *2**||50/60 Hz (47 to 63 Hz)||
||**Input current *1**|**230 VAC input**|9.5 A typ.|10 A typ.|
||**Power factor *1**||0.9 min.||
||**Leakage current *3**|**230 VAC input**|3.5 mA max.|3.5 mA max.|
||**Inrush current *4**<br>**(for a cold start at 25°C)**|**230 VAC input**|22 A typ.|26 A typ.|
|**Output**<br>**characteristics**|**Rated output current**||85 A|45 A|
||**Power Boost Function**||127.5 A|67.5 A|
||**Voltage adjustment range *5**||24 to 28 V (with V.ADJ)|48 to 56 V (with V.ADJ)|
||**Ripple noise voltage *6**|**200 to 240 VAC**<br>**input**|200 mVp-p max.<br>at 20 MHz of bandwidth|280 mVp-p max.<br>at 20 MHz of bandwidth|
||**Input variation influence*7**||0.5% max.||
||**Load variation influence*8**||1.5% max.||
||**Temperature variation**<br>**influence**|**200 to 240 VAC**<br>**input**|0.05%/°C max.||
||**Startup time *9**|**230 VAC input**|1,000 ms max.||
||**Output hold time*9**|**230 VAC input**|25 ms typ.|25 ms typ.|
|**Additional**<br>**functions**|**Overload protection**||Yes, inverted L voltage drop, automatic reset, power cut off if higher of rated output current<br>continues and turn on the input again.<br>Refer to the_Overload Protection_on page 4.||
||**Overload protection for terminals**||Yes, inverted L voltage drop, automatic reset,<br>power cut off if overprotection (terminal blocks)<br>continues and turn on the input again.<br>Refer to the_Overload Protection_on page4.|No|
||**Overvoltage protection**||Yes, 130% or higher of rated output voltage, power shut off (shut off the input voltage and turn on<br>the input again), Refer to_Overvoltage Protection_on page 4.||
||**Series operation**||Yes (For up to two Power Supplies; external diodes required.) Refer to_Series Operation_on<br>page 14.||
||**Parallel operation**||Yes (For up to two Power Supplies), Refer to_Parallel Operation_on page 14.<br>Use with the switch for parallel operation set to the “PARALLEL” side (the rated output current<br>limited to 80%).||
||**INPUT OK Indicator**||Yes (LED: Green)||
||**DC OK Indicator**||Yes (LED: Green)||
||**Iout > 100% Indicator**||Yes (LED: Yellow)||
||**DC OK Signal Output**||Yes (MOS FET relay output 30 VDC max., 50 mA max.)||
||**Iout > 100% signal output**||Yes (MOS FET relay output 30 VDC max., 50 mA max.)||
|**Insulation**|**Withstand voltage**||3.0 kVAC for 1 min. (between all input terminals and all output terminals, signal output terminals),<br>cutoff current 20 mA||
||||2.0 kVAC for 1 min. (between all input terminals and PE terminals), cutoff current 20 mA||
||||1.0 kVAC for 1 min. (between all output terminals, signal output terminals and PE terminals),<br>cutoff current 40 mA||
||||0.5 kVAC for 1 min. (between all output terminals and all signal output terminals),<br>cutoff current 10 mA||
||**Insulation resistance**||100 MΩmin. (between all output terminals, signal output terminals andall input terminals /PE<br>terminals)at 500 VDC||
|**Environment**|**Ambient operating temperature*10**||-40 to 70°C (Derating is required according to the temperature. Refer to_Engineering Data_on<br>page 9.) (with no condensation or icing)||
||**Storage temperature**||-40 to 85°C (with no condensation or icing)||
||**Ambient operating humidity**||95% max. (Storage humidity: 95% max.)||
||**Vibration resistance**||10 to 55 Hz, maximum 5 G, 0.42 mm single amplitude for 2 h each in X, Y, and Z directions||
||**Shock resistance**||147 m/s2, 3 times each in ±X, ±Y, ±Z directions||
|**Reliability**|**MTBF *11**||90,000 hrs||
||**Expected life *12**||10 years min.||
|**Construction**|**Weight**||3200 g max.||
||**Cooling fan**||No||
||**Degree of protection**||IP20 by EN/IEC 60529||



**Note:** For * 1 to * 12, refer to page 3. 

**2** 

**S8VK-WA** 

|||**Power rating**|**2000 W**|**2000 W**|
|---|---|---|---|---|
|**Item**||**Output voltage (VDC)**|**24 V**|**48 V**|
|**Standards**|**Harmonic curre**|**nt emissions**|Conforms to EN 61000-3-2||
||**EMI**|**Conducted emissions**|Conforms to EN 61204-3 Class B,<br>EN 55011 Class B||
|||**Radiated emissions**|||
||**EMS**||Conforms to EN 61204-3 high severity levels||
||**Safety standards**||• UL 508 (Listing)<br>• CSA C22.2 No.107.1 (cUL)<br>• UL 62368-1 (Recognition) OVC II (≤ 3000 m) Pol2<br>• CSA C22.2 No.62368-1 (cUR) OVC II (≤ 3000 m) Pol2<br>• EN/IEC 62477-1 OVC III (≤2000 m) OVC II (2000 m < and≤3000 m) Pol2<br>• EN/IEC 62368-1 OVC II (≤ 3000 m) Pol2<br>• RCM (EN61000-6-4)<br>• Complies with PELV (EN/IEC 60204-1)<br>• Complies with EN/IEC 61204-7||
||**SEMI**||Complies with SEMI F47-0706 (200 to 240 VAC input)||



- *1. The value is when both rated output voltage and rated output current are satisfied. 

- *2. Do not use an inverter output for the product. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal temperature of the product may result in ignition or burning. If the input is connected to a UPS, do not connect a UPS with a square-wave output. Doing so will cause the internal temperature of the product to increase, possibly causing smoking or burning. 

- *3. The value is determined according to the Electrical Appliances and Material Safety Act. 

- *4. Values for a cold start at 25°C. Refer to _Inrush Current, Startup Time, and Output Hold Time_ on page 4. 

- *5. If the output voltage adjuster (V. ADJ) is turned, the voltage will increase by more than the voltage adjustment range. 

When adjusting the output voltage, confirm the actual output voltage from the product and be sure that the load is not damaged. 

- *6. The value is when both rated output voltage and rated output current are satisfied. A characteristic when the ambient operating temperature is 25°C. 

- *7. This is the maximum variation in the output voltage when the input voltage is gradually changed within the allowable input voltage range at the rated output voltage and rated output current. 

- *8. 200 to 240 VAC input, in the range of 0 A to the rated output current. 

- *9. This is the value when both rated output voltage and rated output current are satisfied and at room temperature (25 ° C). Refer to _Inrush Current, Startup Time, and Output Hold Time_ on page 4 for details. 

- *10. At -40 to -25°C, time will be required before the rated output voltage is output after the input voltage is input. 

- *11. MTBF is calculated according to JEITA RCR-9102. 

- *12. Refer to _Recommended Replacement Periods and Periodic Replacement for Preventive Maintenance_ on page 19 for details. 

## **Standard Compliance** 

- To comply with PELV output requirements for EN/IEC 60204-1, ground the negative side of the output (-V) to a protective earth (PE). 

- EN/IEC 61558-2-16, EN/IEC 61204-7 

When certification was received for EN/IEC 60204-1 (Machinery Safety), it was necessary to go through a control transformer to the control circuits. However, a control transformer is not always necessary for product that have been certified for the safety standard for OVCIII or for product that use a transformer that complies with EN/IEC 61558-2-16 or EN/IEC 61204-7. 

- Safety Standards for a DC Input 

The following safety standards apply to a DC input: UL 62368-1, cUR (CSA C22.2 No. 62368-1), EN/IEC 62368-1, EN/IEC 62477-1, EN/IEC 61204-7. Safety standard compliance is achievable by connecting a safety standard certified fuse to the (L/+) side. For a DC power input, connect (L/+) side to (+), and (N/-) side to (-). 

To select a safety standard fuse, refer to _Recommended circuit breakers and fuses_ on page 12. 

**3** 

**S8VK-WA** 

## **Inrush Current, Startup Time, and Output Hold Time** 

**==> picture [239 x 134] intentionally omitted <==**

**----- Start of picture text -----**<br>
Input ON Input OFF<br>AC input<br>voltage<br>Inrush current on input application<br>AC input<br>current<br>90% 96.5%<br>Output<br> voltage<br>Startup time Hold time<br>**----- End of picture text -----**<br>


**Note:** Twice the normal inrush current will flow during parallel operation or for backup operation. Therefore, check the fusing characteristics of fuses and operating characteristics of breakers making sure that the external fuses will not burn out and the circuit breakers will not be activated by the inrush current. 

## **Overload Protection** 

The overload protection circuit will protect the product from shortcircuit currents and overcurrents. 

## **<S8VK-WA202** @@ **>** 

## **(OPERATION: SINGLE)** * **1** * **2** * **3** 

When the load current reaches 151% to 175% of the rated current, the output voltage is automatically lowered. When the overload status is cleared, the output voltage is automatically recovered to the normal status. 

The output voltage is cut off under the following conditions. 

- A current exceeding the rating continues for more than 5 seconds 

- The overload status continues for three seconds or longer while the output voltage is lowered due to overload protection 

To reset the protection, turn OFF the input power for three minutes or longer and then turn it back ON. 

## **<S8VK-WA202** @@ **>** 

## **(OPERATION: PARALLEL)** * **1** * **2** * **3** 

When the load current reaches 81% to 110% of the rated current, the output voltage is automatically lowered. When the overload status is cleared, the output voltage is automatically recovered to the normal status. 

## **<Only S8VK-WA20224> (for terminal block)** 

If use continues for longer than 10 seconds while a current exceeds a 45 A output current for each terminal of output, overload protection is activated. The maximum current of each terminal is limited so that it will be 45 A or lower and the output voltage is also lowered. When the overload status is cleared, the output current and the output voltage are automatically recovered to the normal status. The output voltage is cut off when the overload status continues for three seconds or longer while the output voltage is lowered due to overload protection. To reset the protection, turn OFF the input power for three minutes or longer and then turn it back ON. 

**==> picture [236 x 112] intentionally omitted <==**

**----- Start of picture text -----**<br>
When a 45 A output current<br>is exceeded Iout>45 A and t>10 sec<br>Continues for<br>3 seconds or<br>more and cut off<br>+ -<br>Be sure to use multiple poles<br>0 45 A<br>Output current<br>Output voltage (V)<br>**----- End of picture text -----**<br>


- **Note: 1.** The rated current per pole of the output terminals will be 45 A. If a current exceeding 45 A will flow, wire using multiple poles at the same time. 

   **2.** If overload protection is activated for even one output terminal pole, the output voltage of all terminals will be lowered. 

   **3.** Make the length and thickness of the wires connected to the load the same so that the current flowing through them will be the same. 

## **Overvoltage Protection** 

Overvoltage will be detected to prevent the load from being subjected to excessive voltage when the feedback circuit in the Power Supply fails, etc. 

When an excessive voltage that is approximately 130% of the rated output voltage or more is output, the output voltage is cut OFF, preventing damage to the load due to overvoltage. 

Reset the input power by turning it OFF for at least three minutes and then turning it back ON again. 

**Note:** Do not turn ON the power again until the cause of the overvoltage has been removed. 

The output voltage is cut off under the following conditions. 

- The overload status continues for three seconds or longer while the output voltage is lowered due to overload protection. 

To reset the protection, turn OFF the input power for three minutes or longer and then turn it back ON. 

**==> picture [226 x 133] intentionally omitted <==**

**----- Start of picture text -----**<br>
S8VK-WA202 @@ S8VK-WA202 @@<br>(SINGLE) (PARALLEL)<br>Continues for a certain period of<br>time and cut off<br>Continues for<br>3 seconds or<br>more and cut off<br>0 100 0 81 110<br>Output current (%) Output current (%)<br>Output voltage (V) Output voltage (V)<br>**----- End of picture text -----**<br>


- *1. Internal parts may occasionally deteriorate or be damaged if a 

   - short-circuited or overload status continues during operation. Use the product after verifying that the Iout > 100% indicator is not lit or the Iout>100% signal output is OFF. 

- *2. Internal parts may possibly deteriorate or be damaged if the Power Supply is used for applications with inrush current or overloading at the load end. Do not use the Power Supply for such applications. 

- *3. Do not turn ON the power again until the cause of the overvoltage has been removed. 

**4** 

**S8VK-WA** 

## **INPUT OK Indicator** 

The INPUT OK indicator will light when the input voltage exceeds the lower limit value of the permissible range. 

**Note:** The voltage may be applied even if the indicator does not light. Be sure to check the input voltage when performing wiring. 

## **DC OK Indicator/Signal Output** 

The DC OK indicator will light when the output voltage is more than 90% of the rated output voltage, and the internal MOS FET relay is conducted (turned ON). 

- **Note: 1.** The output voltage may be generated even if the indicator does not light. Be sure to check the output voltage when connecting to the load. **2.** This function monitors the voltage at the power output terminals. To check the voltage accurately, measure the voltage at the load end. 

   **3.** If the output voltage is set to less than 90% of the rated output voltage, the indicator may go off and the signal output may be turned OFF. 

## **Iout > 100% Indicator/Signal Output** 

The Iout > 100% indicator lights up when the output current exceeds the rated output current, and the internal MOS FET relay is conducted (turned 

ON). 

- **Note: 1.** The Iout > 100% Indicator may light up, and the Iout > 100% Signal Output may turn ON during peak current operation, however, the Power Supply can be used as long as the operating conditions specified in _Power boost current_ (P.13) are satisfied. 

   **2.** Even when the operating conditions for parallel operation are satisfied, the Iout > 100% Indicator / Signal Output may operate, so do not use the Iout > 100% Indicator / Signal Output. 

## **Specifications of the Signal Output Terminals (between DC OK Signal Output Terminal and COM Terminal, and between Iout > 100% Signal Output Terminal and COM Terminal)** 

Since the Signal Output is composed of the MOS FET relay, it does not have any polarity. 30 VDC max., 50 mA max. 

Residual voltage when the function is ON: 2 V max. 

Leakage current when the function is OFF: 0.1 mA max. 

- **Note: 1.** Internal current control circuits are not provided internally for output signals. Do not allow the output current to exceed 50 mA. **2.** After completing wiring, confirm that the circuits operate correctly. 

## **Identification of error locations at the input, product, and load side by the Indicator or Signal Output, and troubleshooting for the same (Maintenance point indicator)** 

Error locations at the input, product, and load side can be identified by the INPUT OK, DC OK, Iout > 100% Indicator / Signal Output. 

|**INPUT OK**<br>**Indicator**|**DC OK**<br>**Indicator/Signal**<br>**Output**|**Iout > 100%**<br>**Indicator/Signal**<br>**Output**|**Product operating status**|**Troubleshooting methods**|
|---|---|---|---|---|
|�|�|�|---|(Normal)|
|�|�|�|Operation is being performed in<br>excess of the rated output current of<br>the product.|Change to a product with less load or larger output capacity.<br>However, the Power Supply can be used as long as the operating<br>conditions specified in Power boost current (P.13) are satisfied.|
|�|�|�|Overload protection is activated for<br>the product, and the output voltage<br>drops.|Make sure the output line and the load are not short-circuited.<br>If there is no short-circuiting, change to a product with less load or<br>larger output capacity.|
|�|�|�|||
|�|�|�|The product may have failed, or the<br>overvoltage protection may have<br>been activated for the product.|If there is no output voltage even after checking the following,<br>replace the product because it is likely to have failed.<br>**Checking overvoltage protection status**<br>Turn OFF the input power for three minutes or longer and then turn<br>it back ON.<br>**Checking overload protected status**<br>Check whether the load is in overload status or is short-circuited.<br>Remove the load wires when checking. Turn OFF the input power<br>for three minutes or longer and then turn it back ON.|
|�|�|�|No input voltage is being supplied.|Make sure the circuit breaker connected to the input side has not<br>tripped, or the fuse connected to the input side has not blown.<br>Turn ON the circuit breaker or replace the fuse. Turn the input<br>power ON again, and if no output voltage is output, the product<br>may have failed. Replace the product.|



�: Lit / ON �: Not lit / OFF � : Flashing / ON · OFF 

**5** 

**S8VK-WA** 

## **Time chart (Operation of the Indicator/Signal Output according to the product status) S8VK-WA202** @@ 

|**8VK-WA202**@@|||||||||
|---|---|---|---|---|---|---|---|---|
|Output current<br>0%<br>100%<br>Input voltage<br>Output voltage<br>0V<br>Rated voltage<br>Indicator: Not lit<br>Indicator: Lit<br>Indicator: Not lit<br>Indicator: Lit<br>>151%<br>OFF<br>ON<br>INPUT OK<br>Indicator: Lit<br>Indicator: Not lit<br>Iout>100%<br>Signal Output: ON<br>Signal Output: OFF<br>DC OK<br>Signal Output: ON<br>Signal Output: OFF|||Power<br>Boost<br>Function||Overload<br>protection<br>operating|Overload protection<br>operating (when output<br>is short-circuited)<br>|||
||||||||||
||||||||||
||||||||||
||||||||||
||||||||Short-circuit > 3 sec.||
||||||||||
||||||||||
|||||||||Latch stop|
||||||||||
||||||||||
||||||||||
||||||||||
||||||||||
||||||||||
||||||||||
||||||||||



**6** 

**S8VK-WA** 

## **Connections** 

## **Block Diagrams** 

## **S8VK-WA202** @@ **(2000 W)** 

**==> picture [461 x 269] intentionally omitted <==**

**----- Start of picture text -----**<br>
+V1<br>L/+ (1) +V2<br>L/+ (2) Fuse +V3<br>250 VAC Noise DC OUTPUT<br> 30 A Filter -V1<br>NC  HBC -V2<br>INPUT NC Rectifier Inrush Harmonic current Smoothing Rectifier/ -V3<br>current suppression circuit smoothing -V4<br>protection (power factor circuit<br>improvement)<br>N/- (1)<br>N/- (2)<br>Current<br>Drive detection circuit<br>control circuit (For terminal block)<br>Only S8VK-WA20224<br>Rectifier/<br>Smoothing<br>Overcurrent circuit<br>detection  Auxiliary power<br>circuit supply circuit<br>Overcurrent Current I     >100%out<br>circuit detection<br>circuit<br>SIGNAL<br>Voltage OUTPUT<br>detection<br>circuit DC OK<br>Overvoltage<br>detection  COM<br>circuit SIGNAL<br>Photocoupler OUTPUT<br>**----- End of picture text -----**<br>


**7** 

**S8VK-WA Construction and Nomenclature** 

## **Nomenclature** 

## **2000 W** 

**S8VK-WA202** @@ 

**==> picture [291 x 174] intentionally omitted <==**

**----- Start of picture text -----**<br>
(8) (9) (10)(11)(12)(13)(14)<br>(19)<br>(20)<br>(21)<br>(22)<br>(16)<br>(17)<br>(15) (18)<br>**----- End of picture text -----**<br>


(1)(2)(3)(4)(5)(6)(7) 

|**No.**|**Terminal**<br>**name**|**Name**<br>**Function**|
|---|---|---|
|(1)|L/+ (1)<br>Input terminals<br>L/+ (2)<br>NC<br>NC<br>N/- (1)<br>N/- (2)|Connect the input lines to these terminals.*1<br>The terminals “NC” are not connected.|
|(2)|||
|(3)|||
|(4)|||
|(5)|||
|(6)|||
|(7)|PE<br>Protective Earth|terminal (<br>)<br>Connect the ground line to this terminal.*2|
|(8)|+V1<br>DC Output termi<br>+V2<br>+V3<br>-V1<br>-V2<br>-V3<br>-V4|nals<br>Connect the load lines to these terminals.|
|(9)|||
|(10)|||
|(11)|||
|(12)|||
|(13)|||
|(14)|||
|(15)|---<br>INPUT OK Indic|ator (INPUT OK: Green)<br>Lights up when the input voltage exceeds the lower limit value of the<br>permissible range.|
|(16)|---<br>Iout > 100% Indi<br>Yellow)|cator (Iout > 100%:<br>The Iout > 100% Indicator lights up when the output current exceeds the<br>rated output current.|
|(17)|---<br>DC OK Indicator|(DC OK: Green)<br>Lights up when the output voltage is more than 90% of the rated output<br>voltage.|
|(18)|---<br>Output voltage a|djuster (V.ADJ)<br>Use to adjust the output voltage.|
|(19)|Iout > 100%<br>Iout > 100% Sig|nal Output Terminal<br>The Iout > 100% Signal Output is output when the output current exceeds<br>the rated output current.|
|(20)|DC OK<br>DC OK Signal O|utput Terminal<br>Outputs when the output voltage is more than 90% of the rated output<br>voltage.|
|(21)|COM<br>COM Terminal|Common terminal for Signal Output (19) and (20).|
|(22)|---<br>Operation switch<br>(OPERATION)|<br>Set the switch to “PARALLEL” if the units are in parallel operation.<br>SINGLE<br>:The output current can use 100% of the rated output current.<br>PARALLEL :Overcurrent protection limits the output current to 80% of the<br>rated output current.|



*1. For a DC power input, connect (L/+) to (+), and (N/-) to (-). 

(Refer to the wiring diagrams illustrated in _Recommended circuit breakers and fuses_ on page 12.) 

*2. This is the protective earth terminal specified in the safety standards. Always ground this terminal. 

**8** 

**S8VK-WA** 

## **Engineering Data** 

## **Derating Curves** 

**==> picture [343 x 223] intentionally omitted <==**

**----- Start of picture text -----**<br>
2000 W  2000 W<br><Horizontal separation 15 mm or more> <Horizontal separation: less than 15 mm><br>120 120<br>100 100<br>A<br>C<br>75%<br>80 80<br>60 60<br>B<br>40 30% 40<br>20 20<br>0 0<br>–40 –25 –10 0 10 20 30 40 50 60 70 80 –40 –25 –10  0 10 20 30 40 50 60 70 80<br>Ambient operating temperature (°C) Ambient operating temperature (°C)<br>Note: 1. Multiply the above-shown load ratio  Note: 1. Apply the rated input voltage for<br>by the coefficient of load reduction to  three-phase, single-phase and two-<br>input voltage. phase.<br>2.  In the shaded area, time is  2.  In the shaded area, time is<br>required to reach the rated output  required to reach the rated output<br>voltage after the input voltage is  voltage after the input voltage is<br>applied. applied.<br>Load rate (%) Load rate (%)<br>**----- End of picture text -----**<br>


**==> picture [297 x 17] intentionally omitted <==**

**----- Start of picture text -----**<br>
A. Standard mounting C. Front, side-by-side mounting<br>B. Face-up mounting<br>**----- End of picture text -----**<br>


**==> picture [139 x 151] intentionally omitted <==**

**----- Start of picture text -----**<br>
Parallel operation (2000 W)<br>120<br>100<br>80<br>60<br>40<br>20<br>0<br>–40 –25 –10  0 10 20 30 40 50 60 70 80<br>Ambient operating temperature (°C)<br>Load rate (%)<br>**----- End of picture text -----**<br>


**==> picture [134 x 26] intentionally omitted <==**

**----- Start of picture text -----**<br>
Note:  Multiply the above-shown load<br>ratio by the coefficient of load<br>reduction to input voltage.<br>**----- End of picture text -----**<br>


A. Standard mounting 

## **Coefficient of load reduction to input voltage** 

**AC input** 

## **DC input** 

**==> picture [313 x 69] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.0 1.0<br>0.85<br>0.60<br>170 200 264 240 280 384<br>Input voltage (VAC) Input voltage (VDC)<br>Coefficient of  load reduction Coefficient of  load reduction<br>**----- End of picture text -----**<br>


This Power Supply can be used at an altitude of up to 3,000 m. 

Between 2,000 and 3,000 m, derate the load according to the following derating curve. 

**==> picture [347 x 149] intentionally omitted <==**

**----- Start of picture text -----**<br>
<Horizontal separation: 15 mm or more> <Horizontal separation: less than 15 mm><br>120 120<br>100% 100%<br>100 100<br>90% 85%<br>87 77% 75%<br>80 80<br>75 65%<br>60 60<br>35°C max.<br>40 55°C max. 40 40 ° C<br>60°C<br>55°C<br>20 65°C 20<br>70°C<br>0 0<br>0 500 1,000 1,500 2,000 2,500 3,000 3,500 0 500 1,000 1,500 2,000 2,500 3,000 3,500<br>Altitude (m) Altitude (m)<br>Load rate (%) Load rate (%)<br>**----- End of picture text -----**<br>


**Note:** Multiply the above-shown load ratio by the coefficient of load reduction to input voltage. 

**Note:** Apply the rated input voltage. 

A. Standard mounting 

C. Front, side-by-side mounting 

**Coefficient of load reduction to input voltage AC input** 

**==> picture [132 x 162] intentionally omitted <==**

**----- Start of picture text -----**<br>
1.0<br>0.85<br>170 200 264<br>Input voltage (VAC)<br>DC input<br>1.0<br>0.60<br>240 280 384<br>Input voltage (VDC)<br>Coefficient of  load reduction<br>Coefficient of  load reduction<br>**----- End of picture text -----**<br>


**9** 

**S8VK-WA** 

**Dimensions** 

**(Unit: mm)** 

**==> picture [508 x 204] intentionally omitted <==**

**----- Start of picture text -----**<br>
S8VK-WA20224<br>S8VK-WA20248 190±1 129.4<br>83.3 121.4±1<br>45.1 117<br>10 (0.6) (1) 111.4<br>ee e e<br>51.1<br>5 33.3<br>124±1<br>0.5<br>53.8<br>5.4 19.8 5.2 (0.6) (1) 123.4 (10)<br>6.5 (8.0 max. when sliding) 129<br>48.05<br>133.4±1<br>**----- End of picture text -----**<br>


**10** 

**S8VK-WA** 

## **Safety Precautions** 

## **Warning Indications** 

Indicates a potentially hazardous situation which, if not avoided, will result in minor or **WARNING** moderate injury, or may result in serious injury or death. Additionally, there may be significant property damage. 

Indicates a potentially hazardous situation **CAUTION** which, if not avoided, may result in minor or moderate injury or in property damage. **Precautions for** Supplementary comments on what to do or **Safe Use** avoid doing, to use the product safely. Supplementary comments on what to do or **Precautions for** avoid doing, to prevent failure to operate, **Correct Use** malfunction or undesirable effect on product performance. 

## **Meaning of Product Safety Symbols** 

**==> picture [34 x 142] intentionally omitted <==**

Caution against electric shock Used to warn of the risk of electric shock under specific conditions. 

Caution against high temperatures Used to warn of the risk of minor injury caused by high temperatures. No disassembly Use to indicate prohibition when there is a risk of minor injury from electrical shock or other source if the product is disassembled. General instructions Used for general mandatory action precautions for which there is no specified symbol. 

## **WARNING** 

**Product failure may result in fire or electric shocks. Be sure to use the recommended circuit breaker or fuse. For details, refer to** _**Recommended circuit breakers and fuses**_ **on page 12.** 

**The electrical wire may come out and an electric shock may be caused. Insert the solid wire or ferrule straight into the terminal block until the end touches the terminal block.** 

## **CAUTION** 

**Minor electric shock, fire, or Product failure may occasionally occur. Do not disassemble, modify, or repair the Product or touch the interior of the Product.** 

**Minor burns may occasionally occur. Do not touch the Product while power is being supplied or immediately after power is turned OFF.** 

**Minor injury due to electric shock may occasionally occur. Do not touch the terminals while power is being supplied.** 

## **Precautions for Safe Use** 

## **Ambient Operating and Storage Environments** 

- Store the Power Supply at a temperature of -40 to +85°C and a humidity of 95% or less. 

- Do not use the Power Supply in areas outside the derating curve as doing so may result in internal parts occasionally deteriorating or being damaged. 

- Use the Power Supply at a humidity of 95% max. 

- Do not use the Power Supply in locations subject to direct sunlight. 

- Do not use locations where liquids, foreign matter, or corrosive gases may enter the interior of the Product. 

## **Installation Environment** 

- Do not use the Product in locations subject to shocks or vibrations. In particular, install the Power Supply as far away as possible from contactors or other devices that are a vibration source. 

- Install the Power Supply well away from any sources of strong, high-frequency noise and surge. 

- Do not use an inverter output for the product. Inverters with an output frequency of 50/60 Hz are available, but the rise in the internal temperature of the product may result in ignition or burning. 

- If the input is connected to a UPS, do not connect a UPS with a square-wave output. Doing so will cause the internal temperature of the product to increase, possibly causing smoking or burning. 

## **Mounting** 

- Take adequate measures to ensure proper heat dissipation to increase the long-term reliability of the Power Supply. Be sure to allow convection in the atmosphere around devices when mounting. Do not use in locations where the ambient temperature exceeds the range of the derating curve. 

- When cutting out holes for mounting, make sure that cuttings do not enter the interior of the Power Supplies. 

- The internal parts may occasionally deteriorate and be broken due to adverse heat radiation. Do not loosen the screws on the Power Supply. 

- *1 *1 *1 *2 *1. Convection of air *2. Vertical separation: 23 mm or more 

- *3. Horizontal separation: 15mm or more (Standard mounting) Horizontal separation: 

- *3 *3 Less than 15 mm 

- *1 *1 *1 *2 (Front, side-by-side mounting) 

- S8VK-W can be used in combinations with a horizontal separation of less than 15 mm (front, side-by-side mounting) only in cases of the same model being used. 

- In such cases, use the product in accordance with a derating curve with a horizontal separation of less than 15 mm. 

**==> picture [217 x 17] intentionally omitted <==**

**----- Start of picture text -----**<br>
(A) Standard (Vertical)  (B) Face-up mounting (C) Front, Side-by-side<br>mounting mounting<br>**----- End of picture text -----**<br>


**Minor electric shock, fire, or Product failure may occasionally occur. Do not allow any pieces of metal, conductors, or cuttings from installation work to enter the Power Supply.** 

**If the circuit breaker has tripped, or the fuse has blown, there could be a severe failure in the Power Supply. Do not turn the input ON again.** 

**11** 

**S8VK-WA** 

## **Recommended circuit breakers and fuses** 

- Product failure may result in fire or electric shocks. Therefore, always use the recommended circuit breaker or fuse. 

- To ensure conformance to safety standards, and secure safety of the Unit, connect an input to the Unit via the recommended circuit breakers or fuses indicated in the table below. 

- A circuit breaker or fuse can be changed only by the indicated person or skilled person. 

- **Note:** For the S8VK-WB, the DC input is not compliant with Safety standards. 

|**Model**|**Input**|**Recommended product**<br>**(per single Unit)**|
|---|---|---|
|S8VK-WA20224<br>S8VK-WA20248|Single-phase|Circuit breaker:<br>240 VAC min., 30 to 40 A,<br>Type B or C characteristics|
||DC|Fuse:<br>Fast-acting type,<br>390 VDC min., 30 A|



- If multiple Units are used through crossover wiring, select the circuit breaker or fuse in view of the input current and inrush current. 

## **Wiring** 

- This is the protective earth terminal specified in the safety standards. Connect the ground completely. Electric shock or malfunction may occur if the ground is not connected completely. 

- Minor fire may possibly occur. Ensure that DC input and output terminals are wired correctly. 

- When you insert wires or insert a screwdriver into a release hole, do not press down on the terminal block with a force of 40 N or greater (100 N or greater for the output terminal block). 

- Do not wire anything to the release holes. 

- Do not tilt or twist a flat-blade screwdriver while it is inserted into a release hole on the terminal block. The terminal block may be damaged. 

- Insert a flat-blade screwdriver into the release holes at an angle. The terminal block may be damaged if you insert the screwdriver straight in. 

- Do not allow the flat-blade screwdriver to fall out while it is inserted into a release hole. 

- Do not bend a wire past its natural bending radius or pull on it with excessive force. This may cause a wire to be broken. 

- Do not insert more than one wire into each terminal insertion hole. 

- Do not pre-solder the ends of the wires. Doing so will inhibit proper connection. 

## **Recommended Wire Type** 

|**Terminal**|**Model**|**Recommended wire**<br>**gauge**|**Recommended wire**<br>**gauge**|
|---|---|---|---|
|||**(mm2)**|**(AWG)**|
|Input|S8VK-WA202@@|2 to 2.5|14|
|DC Output|S8VK-WA202@@ *1|6 to 16|10 to 6|
|Signal Output/COM|S8VK-WA202@@|0.25 to 2.5|24 to 14|
|PE (protective<br>earth) terminal|S8VK-WA202@@|2 to 2.5|14|



- *1. If a current exceeding any of the following ratings flows, be sure to use multiple terminals and wires at the same time. 

   - The rated current per pole of the output terminals will be 45 A. 

   - The rated current of the wires (output) 

   - AWG6: 65 A, AWG8: 50 A, AWG10: 35 A 

- Input crossover wiring can be used for the input side of this Power Supply. 

- Do not use crossover wiring for more than five Power Supplies, and do not allow the steady-state current to the input terminals to exceed 10 A. The above table gives the recommended wires for one Power Supply. 

- If you use crossover wiring for N number of Power Supplies, a current that is N times the current for a standalone Power Supply may flow to the input terminals. Take this into consideration when you select wiring materials. 

- Use min. 60°C or 60/75°C wire. (Input line only) 

## **Stripping Length** 

S8VK-WA202 @@ : Input Terminals/PE Terminals 

|**Recommended wire gauge**|**Stripping Length**<br>**(Ferrules not used)**|
|---|---|
|**0.34 to 1.5 mm2/AWG22 to 16**|8 mm|
|**2 to 2.5 mm2/AWG14**|10 mm|
|S8VK-WA202@@: DC Output Terminals||
|**Recommended wire gauge**|**Stripping Length**<br>**(Ferrules not used)**|
|**6 to 16 mm2/AWG10 to 6**|18 mm|
|S8VK-WA202@@: Signal Output Terminals/COM Terminals||
|**Recommended wire gauge**|**Stripping Length**<br>**(Ferrules not used)**|
|**0.25 to 2.5 mm2/AWG24 to 14**|10 mm|



- Be sure to remove the sheet covering the S8M for machining before power-ON so that it does not interfere with heat dissipation. 

- If there is a possibility of vibration or shock, please use wires and stranded wires with ferrules. 

- Minor fire may occasionally occur. Always check the voltage of the equipment when replacing the Unit, and be sure to use a conforming product. 

- Use the following material for the wires after confirming the rating of the wires in order to prevent smoking or ignition. 

- Use copper stranded or solid wires. However, solid wires can not be used for the output terminal. 

**12** 

**S8VK-WA** 

## **Indicators/Signal Outputs** 

- Minor injury due to electric shock may occasionally occur. Do not touch the terminals while power is being supplied. The voltage may be applied even if the INPUT OK indicator does not light. Be sure to check the input voltage when performing wiring. 

- The DC OK indicator will light when the output voltage is more than 90% of the rated output voltage, and the internal MOS FET relay is conducted (turned ON). 

- The output voltage may be generated even if the DC OK indicator does not light. Be sure to check the output voltage when connecting to the load device. 

- This function monitors the voltage at the power output terminals. To check the voltage accurately, measure the voltage at the load end. 

- If the output voltage is set to less than 90% of the rated output voltage, the DC OK indicator may go off and the DC OK signal output may be turned OFF. 

- The Iout > 100% Indicator may light up, and the Iout > 100% Signal Output may turn ON during peak current operation, however, the Power Supply can be used as long as the operating conditions specified in _Power boost current_ (P.13) are satisfied. 

- During a short-circuit, the indicator will operate intermittently due to the overload protection function. When this happens, the Iout > 100% indicator will blink in accordance with the intermittent operation, and the Iout > 100% signal output will repeatedly turn ON and OFF. The shortest ON time of the Iout > 100% signal output during intermittent operation is 5 ms. 

## **Specifications of the Signal Output Terminals (between DC OK Signal Output Terminal and COM Terminal, and between Iout > 100% Signal Output Terminal and COM Terminal)** 

Since the Signal Output is composed of the MOS FET relay, it does not have any polarity. 30 VDC max., 50 mA max. 

Residual voltage when the function is ON: 2 V max. 

Leakage current when the function is OFF: 0.1 mA max. 

- **Note: 1.** Internal current control circuits are not provided internally for output signals. Do not allow the output current to exceed 50 mA. 

   **2.** After completing wiring, confirm that the circuits operate correctly. 

## **Power boost current** 

The boost current is a temporary current that exceeds the rated current. 

However, it should meet the following four boost current conditions. 

- Time that the boost current flows: t1 ≤ 5 s 

- The boost current: Ip ≤ Maximum boost current 

- The average output current: Iave ≤ Rated output current × 60% 

- The time ratio of the boost current flow: Duty ≤ 10% 

**==> picture [224 x 111] intentionally omitted <==**

**----- Start of picture text -----**<br>
t1 The product can be used at the<br>Duty = t1 + t2 × 100 [%] ≤ 10% rated current after the time period t2.<br>[A]<br>Ip: Boost current<br>Rated  current<br>lave: Average current<br>t1 t2<br>Output current<br>**----- End of picture text -----**<br>


- Do not allow the peak current to continue for more than 5 seconds. Do not allow the duty to exceed 10%. The Power Supply may be damaged. 

- Make sure that the average current does not exceed the rated value (60% for S8VK-WA202 @@ ) during one cycle (t1 + t2) of the boost current. Failure to do so may result in product damage. 

- Derate the load at the boost current and average output current according to the ambient operating temperature and mounting. 

- When 2,000 W is used in parallel operation (switch for parallel operation is set to the “PARALLEL” side), peak current cannot be used. 

## **Charging a Battery** 

If you connect a battery as the load, install overcurrent control and overvoltage protection circuits. 

## **Output voltage adjuster (V.ADJ)** 

- The output voltage adjuster (V.ADJ.) may possibly become damaged. Do not apply more than the required force. 

- After completing output voltage adjustment, be sure that the output power or output current does not exceed the rated output electric power or rated output current. 

**13** 

**S8VK-WA** 

## **Series Operation** 

Two Power Supplies can be connected in series. 

**==> picture [171 x 101] intentionally omitted <==**

**----- Start of picture text -----**<br>
L L/+ +V<br>N N/-<br>-V<br>L/+ +V<br>N/-<br>-V<br>Load<br>**----- End of picture text -----**<br>


- **Note: 1.** If the load is short-circuited, a reverse voltage will be generated inside the Power Supply. If this occurs the product may possibly deteriorate or be damaged. Always connect a diode as shown in the figure. Select diodes with the following ratings. 

|**Type**|**Schottky Barrier diode**|
|---|---|
|Dielectric strength (VRRM)|Twice the output voltage or above|
|Forward current(IF)|Twice the rated output current or above|



**2.** Though Power Supplies having different specifications can be connected in series, the current flowing through the load must not exceed the smaller rated output current. Be sure to check that the Iout > 100% indicator is not lit or the Iout > 100% signal output is turned OFF before using. 

## **<Making Positive/Negative Outputs>** 

- The outputs are floating outputs (i.e., the primary circuits and secondary circuits are separated). You can therefore make positive and negative outputs by using two Power Supplies. You can make positive/negative outputs with any of the models. If positive and negative outputs are used, connect Power Supplies of the same model as in the following figure. (Combinations with different output capacities or output voltages can be made. However, use the lower of the two maximum rated output currents as the current to the loads.) 

**==> picture [184 x 101] intentionally omitted <==**

**----- Start of picture text -----**<br>
L L/+ +V +V<br>N N/-<br>-V<br>0 V<br>L/+ +V<br>N/-<br>-V -V<br>Load<br>Load<br>**----- End of picture text -----**<br>


- Depending on the model, internal circuits may be damaged due to startup failure when the power is turned ON if loads such as a servomotor or operational amplifier may operate in series. Therefore, connect bypass diodes (D1, D2) as shown in the following figure. 

**==> picture [185 x 101] intentionally omitted <==**

**----- Start of picture text -----**<br>
L L/+ +V<br>N N/- D1<br>-V<br>L/+ +V<br>N/- D2<br>-V<br>Load<br>Load<br>Load<br>**----- End of picture text -----**<br>


## **Parallel Operation** 

Parallel operation is used when the output current from one Power Supply is insufficient for the load. Power Supplies are connected in parallel to increase the output current. Two Power Supplies with the same capacity can be connected in parallel. You must meet the following conditions to use parallel operation. 

- Standard mounting. 

- Ambient temperature: -25 to +40°C 

- Horizontal separation: 15 mm or more, Vertical separation: 23 mm or more 

- Rated input voltage range 

- Output voltage of 25 V max. (S8VK-WA20224) Output voltage of 49 V max. (S8VK-WA20248) 

- Adjust the output voltage difference of each Power Supply to 50 mV or less, using the output voltage adjuster (V. ADJ). 

- There is no current balancing function for S8VK-WA. A high output voltage unit may work at overcurrent state and in this situation, a life of a Power Supply will be extremely short. After adjusting the output voltage, confirm the output current of the Power Supplies balances. 

- For Parallel Operation, to balance the current of the each unit, the length and thickness of each wire connected to the load and each unit must be same as much as possible. 

- The output voltage may drop by several volts if the load changes rapidly (e.g., if the load starts or is disconnected). Connect external diodes as shown in the figure. 

- Do not use parallel operation when there is the possibility that the input voltage will vary outside of the rated input range. 

**==> picture [191 x 104] intentionally omitted <==**

**----- Start of picture text -----**<br>
D1<br>L L/+ +V<br>N N/-<br>-V<br>D2<br>L/+ +V<br>N/-<br>-V<br>Load<br>**----- End of picture text -----**<br>


- Use the following information as a guide to the diode type, dialectic strength, and current. 

|**Type**|**Schottky Barrier diode**|
|---|---|
|Dielectric strength (VRRM)|Twice the output voltage or above|
|Forward current(IF)|Twice the rated output current or above|



   - Increase the output voltage setting of the Power Supplies by the drop in the forward voltage (VF) of diodes D1 and D2. Also, the diodes will cause a power loss equivalent to the Power Supply output current (IOUT) times the diode forward voltage (VF). Therefore, cooling measures must be implemented so that the temperature of the diodes decreases to the catalog value or lower. 

   - Because of the load power and power loss due to the diodes, do not exceed the rated power of one Power Supply (rated output voltage × rated output current). 

   - The internal parts may occasionally deteriorate or be damaged. Set the switch for parallel operation to the “PARALLEL” side. 

- Use the following information as a guide to the diode type, dialectic strength, and current. 

|**Type**|**Schottky Barrier diode**|
|---|---|
|Dielectric strength (VRRM)|Twice the output voltage or above|
|Forward current (IF)|Twice the rated output current or above|



**14** 

**S8VK-WA** 

## **<Backup Operation>** 

Backup operation is possible if you use two Power Supplies of the same model. 

Even if one Power Supply fails, operation can be continued with the other Power Supply. 

Make sure that the maximum load does not exceed the capacity of one Power Supply. 

Connect external diodes. 

**==> picture [191 x 107] intentionally omitted <==**

**----- Start of picture text -----**<br>
S8VK-WA D1<br>L L/+ +V<br>N N/-<br>-V<br>S8VK-WA D2<br>L/+ +V<br>N/-<br>-V<br>Load<br>**----- End of picture text -----**<br>


- Use the following information as a guide to the diode type, dialectic strength, and current. 

|**Type**|**Schottky Barrier diode**|
|---|---|
|Dielectric strength (VRRM)|Twice the output voltage or above|
|Forward current(IF)|Twice the rated output current or above|



- Increase the output voltage setting of the Power Supplies by the drop in the forward voltage (VF) of diodes D1 and D2. Also, the diodes will cause a power loss equivalent to the Power Supply output current (IOUT) times the diode forward voltage (VF). Therefore, cooling measures must be implemented so that the temperature of the diodes decreases to the catalog value or lower. 

- Because of the load power and power loss due to the diodes, do not exceed the rated power of one Power Supply (rated output voltage × rated output current). 

**15** 

**S8VK-WA** 

## **Precautions for Correct Use** 

## **DIN rail mounting** 

To mounting on a DIN Rail, hook portion (A) of the Block onto the rail and press in the (B) direction. 

**==> picture [47 x 78] intentionally omitted <==**

**----- Start of picture text -----**<br>
(A)<br>(B)<br>**----- End of picture text -----**<br>


To dismount the Block, pull down portion (C) with a flat-blade screwdriver and pull out the Block. 

**==> picture [37 x 101] intentionally omitted <==**

**----- Start of picture text -----**<br>
(C)<br>Rail stopper<br>**----- End of picture text -----**<br>


## **Connecting Wires to the Push-In** ~~**Plus Terminal**~~ **Block Part Names of the Terminal Block** 

**==> picture [86 x 57] intentionally omitted <==**

**==> picture [27 x 33] intentionally omitted <==**

**----- Start of picture text -----**<br>
Terminal<br>(Insertion)<br>hole<br>Release<br>hole<br>**----- End of picture text -----**<br>


## **Connecting Wires with Ferrules and Solid Wires** 

Insert the solid wire or ferrule straight into the terminal block until the end touches the terminal block. 

**==> picture [86 x 86] intentionally omitted <==**

**----- Start of picture text -----**<br>
Terminal (Insertion) hole<br>Release hole Ferrules<br>and solid wires<br>**----- End of picture text -----**<br>


## **Connecting Stranded Wires** 

Use the following procedure to connect the wires to the terminal block. 

**1.** Hold a flat-blade screwdriver at an angle and insert it into the release hole. 

   - The angle should be between 10° and 15°. If the flat-blade screwdriver is inserted correctly, you will feel the spring in the release hole. 

**2.** With the flat-blade screwdriver still inserted into the release hole, insert the wire into the terminal hole until it strikes the terminal block. 

**3.** Remove the flat-blade screwdriver from the release hole. 

**==> picture [185 x 57] intentionally omitted <==**

**----- Start of picture text -----**<br>
2<br>10° to 15°<br>3<br>Flat-blade screwdriver 1<br>**----- End of picture text -----**<br>


## **Checking Connections** 

- After the insertion, pull gently on the wire to make sure that it will not come off and the wire is securely fastened to the terminal block 

- The insulati ~~on~~ distance is still satisfied although some of the conductor m ~~a~~ y still be visible after being inserted into the terminal block, even though recommended ferrules are used. 

## **Removing** ~~**W**~~ **ires from the Push-In Plus Terminal Block** 

Use the following procedure to remove wires from the terminal block. The same method is used to remove stranded wires, solid wires, and ferrules. 

**1.** Hold a flat-blade screwdriver at an angle and insert it into the release hole. 

**2.** With the flat-blade screwdriver still inserted into the release hole, remove the wire from the terminal insertion hole. 

**3.** Remove the flat-blade screwdriver from the release hole. 

**==> picture [184 x 57] intentionally omitted <==**

**----- Start of picture text -----**<br>
2<br>10° to 15°<br>3<br>Flat-blade screwdriver 1<br>**----- End of picture text -----**<br>


- If a wire is difficult to connect because it is too thin, use a flat-blade screwdriver in the same way as when connec ~~ting stranded wire.~~ 

**16** 

**S8VK-WA** 

## **Recommended Ferrules and Crimping Tools Recommended Ferrules Input Terminals/PE Terminals DC Output Terminals Signal Output Terminals/COM Terminals** 

|**Applicable**<br>**wire**|**Applicable**<br>**wire**|**Ferrule**<br>**Condu**<br>**ctor**<br>**length**<br>**(mm)**|**Stripping**<br>**length**<br>**(mm)**<br>**(Ferrules**<br>**used)**|**Recommended Ferrules**|**Recommended Ferrules**|**Recommended Ferrules**|
|---|---|---|---|---|---|---|
|**(mm2)**|**(AWG)**|||**Phoenix**<br>**Contact**|**Weidmuller**|**Wago**|
|0.25|24|8|10|AI 0, 25-8|H0.25/12|216-301|
|||10|12|AI 0, 25-10|---|---|
|0.34|22|8|10|AI 0,34-8|H0.34/12|216-302|
|||10|12|AI 0,34-10|---|---|
|0.50|20|8|10|AI 0,5-8|H0.5/14|216-201|
|||10|12|AI 0,5-10|H0.5/16|216-241|
|0.75|18|8|10|AI 0,75-8|H0.75/14|216-202|
|||10|12|AI 0,75-10|H0.75/16|216-242|
|1/1.25|18/17|8|10|AI 1-8|H1.0/14|216-203|
|||10|12|AI 1-10|H1.0/16|216-243|
|1.25/1.5|17/16|8|10|AI 1,5-8|H1.5/14|216-204|
|||10|12|AI 1,5-10|H1.5/16|216-244|
|2.5|14|10|12|AI 2, 5-10|H2.5/16DS|216-246|
|Recommended crimp tool||||CRIMPFOX6<br>CRIMPFOX6T-F<br>CRIMPFOX10S|PZ6 roto|Variocrimp4|



- **Note: 1.** Make sure that the outer diameter of the wire is smaller than the inner diameter of the insulating sleeve of the recommended ferrule. 

   **2.** Make sure that the ferrule processing dimensions conform to the following figure. 

8 to 10 mm 2.6 mm max. 2.8 mm max. 

## **S8VK-WA202** @@ **: DC Output Terminals** 

|**Applicable**<br>**wire**|**Applicable**<br>**wire**|**Ferrule**<br>**Conduct**<br>**or**<br>**length**<br>**(mm)**|**Stripping**<br>**length**<br>**(mm)**<br>**(Ferrules**<br>**used)**|**Recommended Ferrules**|**Recommended Ferrules**|**Recommended Ferrules**|
|---|---|---|---|---|---|---|
|**(mm2)**|**(AWG)**|||**Phoenix**<br>**Contact**|**Weidmuller**|**Wago**|
|6|10|18|21|AI 6-18|H6.0/26|FE-6.0-18N-YE|
|Recommended crimp tool||||CRIMPFOX6<br>(0.25 to 6mm2)<br>CRIMPFOX6T-F<br>(0.25 to 6mm2)<br>CRIMPFOX10S<br>(0.14 to 10mm2)|PZ6 roto<br>(0.14 to 6mm2)<br>PZ 16<br>(6 to 16mm2)|Variocrimp16<br>(6 to 16mm2)|
|10|8|18|21|AI 10-18|H10.0/28|FE-10.0-18N-RD|
|Recommended crimp tool||||CRIMPFOX10S<br>(0.14 to 10mm2)<br>CRIMPFOX 25R<br>(10 to 25mm2)|PZ 16<br>(6 to 16mm2)|Variocrimp16<br>(6 to 16mm2)<br>206-225<br>(10 to 25mm2)|



## **Recommended Flat-blade Screwdriver** 

Use a flat-blade screwdriver to connect and remove wires. Use the following flat-blade screwdrivers. 

The following table shows manufacturers and models as of 2018/Dec. Input terminals/Protective Earth terminal Signal Output terminal/COM Terminal 

|**Model**|**Manufacturer**|
|---|---|
|ESD 0,40×2,5|Wera|
|SZS 0,4×2,5<br>SZF 0-0,4×2,5*|Phoenix Contact|
|0.4×2.5×75 302|Wiha|
|AEF.2,5×75|Facom|
|210/-719|Wago|
|SDIS 0.4×2.5×75|Weidmuller|
|9900(-2.5×75)|Vessel|



- OMRON’s exclusive purchase XW4Z-00B is available to order as SZF 0-0,4×2,5 (manufactured by Phoenix Contact). 

**==> picture [131 x 84] intentionally omitted <==**

**----- Start of picture text -----**<br>
Side Front<br>2.5 mm dia.<br>0.4 mm 2.5 mm<br>**----- End of picture text -----**<br>


DC Output Terminals 

|**Model**|**Manufacturer**|
|---|---|
|ESD 0,80×4,0|Wera|
|SZF 2-0,8×4,0|Phoenix Contact|
|302S4010|Wiha|
|AEF.4×75|Facom|
|SDS 0.8×4×100|Weidmuller|
|1-65-017|STANLEY|
|990 4×100|Vessel|



**==> picture [133 x 83] intentionally omitted <==**

**----- Start of picture text -----**<br>
Side Front<br>4.0 mm dia.<br>0.6 to 0.8mm 4.0 mm<br>**----- End of picture text -----**<br>


- **Note: 1.** Make sure that the outer diameter of the wire is smaller than the inner diameter of the insulating sleeve of the recommended ferrule. 

   **2.** Make sure that the ferrule processing dimensions conform to the following figure. 

**==> picture [100 x 43] intentionally omitted <==**

**----- Start of picture text -----**<br>
18 mm<br>4.2 mm max. 5.1 mm max.<br>**----- End of picture text -----**<br>


**17** 

**S8VK-WA** 

## **Audible Noise at Power ON** 

A harmonic current suppression circuit is built into the Power Supply. This circuit can create noise when the input is turned ON, but it will last only until the internal circuits stabilize and does not indicate any problem in the Product. 

## **In Case There Is No Output Voltage** 

The possible cause for no output voltage may be that the overload protection or overvoltage protection has operated. The internal protection may operate if a large amount of surge voltage, such as a lightning inrush, is applied to the input. In case there is no output voltage, please check the following points before contacting us: 

## **Checking overload protected status:** 

Check whether the load is in overload status or is short-circuited. Remove the load wires when checking. Can be checked depending on whether or not the Iout > 100% indicator is lit, or from the operating status of the Iout > 100% signal output. 

## **Checking overload protected status** 

Check whether the load is in overload status or is short-circuited. Remove the load wires when checking. Turn OFF the input power for three minutes or longer and then turn it back ON. 

## **Checking overvoltage or internal protection:** 

Switch off the input power supply, and switch back on after at least 3 minutes have elapsed. 

## **Disposal** 

When disposing of the product, treat it as industrial waste. 

**18** 

**S8VK-WA** 

## **Warranty and Limitations of Liability** 

## **WARRANTY** 

The Power Supply warranty is valid for a period of five years from the date of shipment from the factory. 

## **LIMITATIONS OF LIABILITY** 

The warranty is valid only for the following operating conditions. 

1. Average ambient operating temperature of the Power Supply: 40°C max. 

2. Average load rate of 80% max. 

- 3.Mounting method: Standard mounting 

Note: The maximum ratings must be within the derating curve. 

If the Power Supply fails for reasons attributable to OMRON within the above warranty period, OMRON will repair or replace the faulty part of the Power Supply at the place of purchase or the place where the Power Supply delivered without charge. This warranty does not cover the following types of failures. 

**1.** Failures that result from handling or operation of the product under conditions or in environments that are not given in this document and not given in any other specifications exchanged between OMRON and the customer. 

**2.** Failures that originate in causes other than the delivered product itself 

**3.** Failures caused by disassembly, modification, or repair of the Power Supply by anyone other than OMRON 

**4.** Failures caused by applications or uses for which the product was not originally intended. 

**5.** Failures caused by factors that could not be anticipated with the scientific or technical knowledge available when the Power Supply was shipped. 

**6.** Failures caused by other causes for which OMRON is not responsible, such as natural disasters and other acts of God. 

This warranty is limited to the individual Power Supply that was delivered and does not cover any secondary, subsequent, or related damages. 

## **Recommended Replacement Periods and Periodic Replacement for Preventive Maintenance** 

The recommended replacement period for preventive maintenance is greatly influenced by the installation environment of the Power Supply. As a guideline, the recommended replacement period is 7 to 10 years. * 

To prevent failures or accidents that can be caused by using a Power Supply beyond its service live, we recommend that you replace the Power Supply as early as possible within the recommended replacement period. However, bear in mind that the recommended replacement period is for reference only and does not guarantee the life of the Power Supply. 

Many electronic components are used in the Power Supply and the Power Supply depends on the correct operation of these components to achieve the original Power Supply functions and performance. However, the influence of the ambient temperature on aluminum electrolytic capacitors is large, and the service life is reduced by half for each 10°C rise in temperature (Arrhenius law). When the capacity reduction life of the electrolytic capacitor is reached, the Power Supply failures or accidents may occur. We therefore recommend that you replace the Power Supply periodically to minimize product failures or accidents in advance. 

- The recommended replacement period applies under the following conditions: rated input voltage, load rate of 50% max., ambient temperature of 40°C max., and the standard mounting method. 

This product model is designed with a service life of 10 years minimum under the above conditions. 

**19** 

**MEMO** 

**20** 

## **Terms and Conditions Agreement** 

## **Read and understand this catalog.** 

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments. 

## **Warranties.** 

(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron disclaims all other warranties, express or implied. 

(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. 

Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty, repair, indemnity or any other claims or expenses regarding the Products unless Omron’s analysis confirms that the Products were properly handled, stored, installed and maintained and not subject to contamination, abuse, misuse or inappropriate modification. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice, recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above warranty. 

See http://www.omron.com/global/ or contact your Omron representative for published information. 

## **Limitation on Liability; Etc.** 

OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY. 

Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted. 

## **Suitability of Use.** 

Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases. 

NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. 

## **Programmable Products.** 

Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence thereof. 

## **Performance Data.** 

Data presented in Omron Company websites, catalogs and other materials is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Omron’s test conditions, and the user must correlate it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability. 

## **Change in Specifications.** 

Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed, or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at any time to confirm actual specifications of purchased Product. 

## **Errors and Omissions.** 

Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical or proofreading errors or omissions. 

## **Note: Do not use this document to operate the Unit.** 

**OMRON Corporation Industrial Automation Company Kyoto, JAPAN** 

**Contact : www.ia.omron.com** 

## **Authorized Distributor:** 

## _**Regional Headquarters**_ 

## **OMRON EUROPE B.V.** 

Wegalaan 67-69, 2132 JD Hoofddorp The Netherlands Tel:  (31) 2356-81-300    Fax: (31) 2356-81-388 

## **OMRON ASIA PACIFIC PTE. LTD.** 

438B Alexandra Road, #08-01/02 Alexandra Technopark, Singapore 119968 Tel:  (65) 6835-3011    Fax: (65) 6835-3011 

## **OMRON ELECTRONICS LLC** 

2895 Greenspoint Parkway, Suite 200 Hoffman Estates, IL 60169 U.S.A. Tel:  (1) 847-843-7900    Fax: (1) 847-843-7787 

## **OMRON (CHINA) CO., LTD.** 

Room 2211, Bank of China Tower, 200 Yin Cheng Zhong Road, PuDong New Area, Shanghai, 200120, China Tel:  (86) 21-6023-0333    Fax: (86) 21-5037-2388 

©OMRON Corporation 2023  All Rights Reserved. In the interest of product improvement, specifications are subject to change without notice. 

**CSM_1_3** 

**Cat. No. T236-E1-03** 0723 (0523) 



## Links

- [View this product on Novapart](https://novapart.co/products/S8VK-WA20248-SPI/ac-dc-din-rail-power-supply-psu-ite-1-output-2-kw)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/omron-industrial-automation/s8vk-wa20248-spi/power-supply-ac-dc-48v-45a/dp/4410318)
---

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