PMF-24V240WCGR

**TECHNICAL DATASHEET** 

**PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **PMF** 

## **Highlights & Features** 

- Universal AC input voltage 

- Built-in Active PFC and fan speed control 

- Full Aluminium casing for light weight and corrosion resistant handling 

- Conforms to harmonic current IEC/EN 61000-3-2, Class A and Class D 

- Remote ON/OFF is available as an option 

- Cold start -20°C at 100% load (240W) 

- Low leakage current < 0.6mA @ 240Vac 

- High MTBF > 700,000 hrs. as per Telcordia SR-332 

- Short Circuit / Overvoltage / Overcurrent / Over Temperature Protections 

## **Safety Standards** C€ AL us 

CB Certified for worldwide use 

**Model Number:** PMF-24V240WC☐☐ **Unit Weight:** 0.66 kg (1.46 lb) **Dimensions (L x W x D):** 190 x 93 x 50 mm (7.48 x 3.66 x 1.97 inch) 

## **General Description** 

The PMF Panel Mount Power Supply series currently offers nominal output voltages of 24V. These power supply units come with universal AC input from 85Vac to 264Vac and wide operating temperature of -10°C to +70°C. The built-in active PFC provides high power factor and conforms to harmonic current IEC/EN 61000-3-2, Class A and Class D. This versatile series has two different connector options (Front Face and Terminal Block) to satisfy different application needs. Remote ON/OFF function is also available for the PMF series. All PMF power supplies conform to major international safety standards including IEC/EN/UL 62368-1 standards and are fully compliant with RoHS Directive for environmental protection. 

## **Model Information** 

PMF Panel Mount Power Supply 

|**ModelNumber**|**Input Voltage Range**|**Rated OutputVoltage**|**Rated Output Current**|
|---|---|---|---|
|PMF-24V240WC☐☐|85-264Vac|24Vdc|10.0A|



## **Model Numbering** 

|||||||**CC Code**|
|---|---|---|---|---|---|---|
|**PM**|**F –**|**24V**|**240W**|**C**|□|□|
|Panel Mount|Product Series<br>F – PFC Series|Output Voltage|Output Power|Package Type<br>C – Enclosed|Connector Type<br>G – Front Face<br>A – Terminal Block*|Variable<br>B – No Remote ON/OFF<br>R – With Remote ON/OFF*|



*Options 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. 1 **www.DeltaPSU.com (October 2020, Rev. 03)** 

**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **Specifications** 

Input Ratings / Characteristics 

|**Specifications**<br>Input Ratings / Characteristics||
|---|---|
|Nominal Input Voltage|100-240Vac|
|Input Voltage Range|85-264Vac|
|Nominal Input Frequency|50-60Hz|
|Input FrequencyRange|47-63Hz|
|Input Current|< 3.60A @ 115Vac, < 1.80A @ 230Vac|
|Efficiencyat 100% Load|87.0% typ.@230Vac|
|Max Inrush Current(Cold Start)|< 35A@115Vac, < 60A@230Vac|
|Power Factor at 100% Load|> 0.99 typ. @ 115Vac, > 0.95 typ. @ 230Vac|
|Leakage Current|< 0.6mA@240Vac|



Output Ratings / Characteristics* 

|Output Ratings / Characteristics*|Output Ratings / Characteristics*||
|---|---|---|
|Nominal Output Voltage||24Vdc|
|FactorySet Point Tolerance||24Vdc ± 1%(initial setpoint tolerance from factory)|
|Output Voltage Adjustment Range||21.6-26.4Vdc|
|Output Current||10.0A(240W max.)|
|Output Power||240W|
|Line Regulation||± 0.5% typ.(@115Vac & 230Vac)|
|Load Regulation||± 0.5% typ.(@115Vac & 230Vac)|
|PARD** (20MHz)||< 150mVpp @ 25°C<br>< 300mVpp @-10°C|
|Rise Time||50ms typ.@115Vac & 230Vac(100% load)|
|Start-up Time||1200ms typ.@115Vac & 230Vac(100% load)|
|Hold-upTime||20ms typ.@115Vac & 230Vac(100% load)|
|Dynamic Response<br>(Overshoot & Undershoot O/P Voltage)||± 5% (2.4V pk-pk) @ 115Vac & 230Vac (0-100% load)|
|Start-up with Capacitive Loads||8,000µF Max|
|Remote ON/OFF Function (Option)|CN102|Output ON: 5-12.5V<br>Output OFF: 0-0.5V<br>(For more information, please refer to the details in the<br>Functional Manual section on Page 10)|



*For power de-rating from 50°C to 70°C, see power de-rating on page 3. 

**PARD is measured with an AC coupling mode, 5cm wires, and in parallel with 0.1µF ceramic capacitor & 47µF electrolytic capacitor. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

**PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## Mechanical 

|Mechanical|Mechanical||
|---|---|---|
|Case Chassis||Aluminium|
|Case Cover||Aluminium|
|Dimensions (L x W x D)||190 x 93 x 50 mm(7.48 x 3.66 x 1.97 inch)|
|Unit Weight||0.66 kg (1.46 lb)|
|Indicator||Green LED(DC OK)|
|CoolingSystem||Forced Cooling|
|Terminal|PMF-24V240WCG☐|M3.5 x 7 Pins(Rated 300V/20A)|
||PMF-24V240WCA☐|M3.5 x 7 Pins(Rated 300V/15A)|
|Wire||AWG 20-12|



## Environment 

|Environment|||
|---|---|---|
|Surrounding Air Temperature|Operating|-10°C to +70°C(Cold start at -20°C)|
||Storage|-25°C to +85°C|
|Power De-rating||> 50°C de-rate power by 2.5% / °C<br><100Vac de-rate power by 1.33% / 1V|
|OperatingHumidity||10-95% RH(Non-Condensing)|
|OperatingAltitude||0 to 5,000 Meters(16,400 ft.)|
|Shock Test (Non-Operating)||IEC 60068-2-27, Half Sine: 50G for a duration of 11ms,<br>3 shocks for each 3 directions|
|Vibration (Non-Operating)||IEC 60068-2-6, Random: 5Hz to 500Hz (2.09Grms);<br>20 min per axis for all X, Y, Z direction|
|Pollution Degree||2|



## Protections 

|Protections||
|---|---|
|Overvoltage|27.6-32.4V, Latch Mode<br>(AC power is recycled)|
|Overload / Overcurrent|105-150%, Hiccup Mode, Non-Latching<br>(Auto-Recovery)|
|Over Temperature|Hiccup Mode, Non-Latching<br>(Auto-Recovery when the fault is removed)|
|Short Circuit|Hiccup Mode, Non-Latching<br>(Auto-Recoverywhen the fault is removed)|
|Protection Against Shock|Class I with PE* connection|



*PE: Primary Earth 

## Reliability Data 

MTBF > 700,000 hrs. as per Telcordia SR-332 I/P: 100Vac, O/P: 100% load, Ta: 35°C Expected Cap Life Time 10 years (115Vac & 230Vac, 50% load @ 40°C) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

**PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## Safety Standards / Directives 

|EMC||
|---|---|
|Emissions (CE & RE)|CISPR 32, EN 55032, FCC Title 47: Class B|
|Immunity|EN 55024|
|Electrostatic Discharge<br>IEC 61000-4-2|Level 4 Criteria A1)<br>Air Discharge: 15kV<br>Contact Discharge: 8kV|
|Radiated Field<br>IEC 61000-4-3|Level 3 Criteria A1)<br>80MHz-1GHz, 10V/M with 1kHz tone / 80% modulation|
|Electrical Fast Transient / Burst<br>IEC 61000-4-4|Level 3 Criteria A1)<br>2kV|
|Surge<br>IEC 61000-4-5|Level 3 Criteria A1)<br>Common Mode2): 2kV<br>Differential Mode3): 1kV|
|Conducted<br>IEC 61000-4-6|Level 3 Criteria A1)<br>150kHz-80MHz, 10Vrms|
|Power Frequency Magnetic Fields<br>IEC 61000-4-8|Criteria A1)<br>10A/Meter|
|Voltage Dips and Interruptions<br>IEC 61000-4-11|100% dip; 1 cycle (20ms); Self Recoverable|
|Low Energy Pulse Test (Ring<br>Wave)<br>IEC61000-4-12|Level 3 Criteria A1)<br>Common Mode2): 2kV<br>Differential Mode3): 1kV|
|Harmonic Current Emission|IEC/EN 61000-3-2, Class A and Class D|
|Voltage Fluctuation and Flicker|IEC/EN 61000-3-3|



## EMC 

1) Criteria A: Normal performance within the specification limits 

2) Asymmetrical: Common mode (Line to earth) 

3) Symmetrical: Differential mode (Line to line) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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## **TECHNICAL DATASHEET PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **Block Diagram** 

## **Device Descriptions** 

**PMF-24V240WCG** ☐ **:** Front Face 

**PMF-24V240WCA** ☐ **:** Terminal Block 

- 1) Input & Output terminal block connector 

- 2) DC voltage adjustment potentiometer 

- 3) DC OK control LED (Green) 

- 4) Remote ON/OFF function connector (Option) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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## **TECHNICAL DATASHEET PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **Dimensions** 

**PMF-24V240WCG** ☐ **: Front Face** 

**L x W x D:** 190 x 93 x 50 mm (7.48 x 3.66 x 1.97 inch) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **PMF-24V240WCA** ☐ **: Terminal Block** 

**L x W x D:** 190 x 93 x 50 mm (7.48 x 3.66 x 1.97 inch) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **Engineering Data** 

Output Load De-rating VS Surrounding Air Temperature 

## **Note** 

1. Power supply components may degrade, or be damaged, when the power supply is continuously used outside the shaded region, refer to the graph shown in Fig. 1. 

2. If the output capacity is not reduced when the surrounding air temperature >70°C, the device will run into Over Temperature Protection. When activated, the output voltage will go into bouncing mode and will recover when the surrounding air temperature is lowered or the load is reduced as far as necessary to keep the device in working condition. 

**Fig. 1 De-rating for Vertical and Horizontal Mounting Orientation** > 50°C de-rate power by 2.5% / °C 

3. In order for the device to function in the manner intended, it is also necessary to keep a safety distance of 20mm (0.78 inch) with adjacent units while the device is in operation. 

4. Depending on the surrounding air temperature and output load delivered by the power supply, the device can be very hot! 

5. If the device has to be mounted in any other orientation, please contact **info@deltapsu.com** for more details. 

6. 

Output Load De-rating VS Input Voltage 

- No output power de-rating for the input voltage from 100Vac to 264Vac 

   - L Frame / Enclosed 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **Assembly & Installation** 

- Ⓐ    Side Mounting: Fig. 2 and Fig. 3 show the mounting hole locations for power supply assembly onto a metal mounting surface. The power supply shall be mounted on minimum of 4 mounting holes using M4 screw of maximum 4mm (0.16 inch) length (Refer to Fig. 4). This is to maintain a safety distance between the screw and internal components. 

- Ⓑ Base Mounting: Fig. 2 and Fig. 3 show the mounting hole locations for power supply assembly onto a metal mounting surface. The power supply shall be mounted on minimum of 4 mounting holes using M3 screw or 2 mounting holes using M4 screw of maximum 4mm (0.16 inch) length (Refer to Fig. 4). This is to maintain a safety distance between the screw and internal components. 

- Ⓒ    Connector 

- Ⓓ    This surface belongs to customer’s end system or panel where the power supply is mounted. 

|Ⓓ    This surface belongs to customer’s end system or panel where the power supply is mounted.This surface belongs to customer’s end system or panel where the power supply is mounted.|Ⓓ    This surface belongs to customer’s end system or panel where the power supply is mounted.This surface belongs to customer’s end system or panel where the power supply is mounted.|Ⓓ    This surface belongs to customer’s end system or panel where the power supply is mounted.This surface belongs to customer’s end system or panel where the power supply is mounted.|
|---|---|---|
|**Base Mounting (Horizontal)**|**Base Mounting (Vertical)**|**Side Mounting (Horizontal)**|
|el.|i;<br>SS|Ye<br>°1G|
|**Fig. 2**<br>**Mounting Orientation**|||



- Use flexible cable (stranded or solid) of AWG No. 20-12. The input/output connectors’ allowable current is 23A max per pin. User should calculate and select the suitable wire specification (type/quantity/diameter) according to actual output current. The torque at the connector shall not exceed 13Kgf.cm. The insulation stripping length should not exceed 0.275” or 7mm. 

- Recommended mounting torque of the product and its mounting accessories is 6~8Kgf.cm (for M3 screw) or 9~12Kgf.cm (for M4 screw). 

**Safety Distance** D1 = 4.0mm Min. D2 = 20.0mm Min. 

**Fig. 3** – **Mounting Hole Locations and the Safety Distance** 

For safety reasons, please ensure the mounted device is kept at ≥ 4mm (0.16 inch) safety distance at all sides from other components and equipments. In addition, to ensure sufficient convection cooling, always maintain a distance of ≥ 20mm from ventilated surfaces while the device is in operation. 

 

   - Only use M4 screw ≤ 4 mm through the base mounting holes at Ⓐ _._ This is to keep a safe distance between the screw and internal components. 

- Only use M3 or M4 screws ≤ 4 mm (0.16 inch) through the base mounting holes at Ⓑ. This is to keep a safe distance between the screw and internal components. 

## **Fig. 4 Assembly Reference** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## Improper Installations 

## Safety Instructions 

- The device is not recommended to be placed on low thermal conductive surface. For example, plastics. 

- For safety reasons, please ensure the mounted device is kept at ≥ 4mm (0.16 inch) safety distance at all sides from other components and equipments. In addition, to ensure sufficient convection cooling, always maintain a distance of ≥ 20mm (0.79 inch) from ventilated surfaces while the device is in operation. 

- Note that the enclosure of the device can become very hot depending on the ambient temperature and load of the power supply. Do not touch the device while it is in operation or immediately after power is turned OFF. Risk of burning! 

- Do not touch the terminals while power is being supplied. Risk of electric shock. 

- Prevent any foreign metal, particles or conductors from entering the device through the openings during installation. It may cause: - Electric shock; Safety Hazard; Fire; Product failure. 

- Warning: When connecting the device, secure Earth connection before connecting L and N. When disconnecting the device, remove L and N connections before removing the Earth connection. The power supply must be mounted by metal screws onto a grounded metal surface. It is highly recommended that the Earth terminal on the connector be connected to the grounded metal surface. 

## **Functional Manual** 

## Remote ON/OFF Function 

You can remotely control the power supply unit to turn ON/OFF by using an external DC source. Follow the DC power source voltage and current limiting defined in the table below. 

|**Built-in Resistor Ri (ohm)**<br>~~a~~|**Voltage Between RC+ and RC- (V)**<br>~~es~~<br>~~ee~~|**Voltage Between RC+ and RC- (V)**<br>~~es~~<br>~~ee~~|**Input Current (mA)**|
|---|---|---|---|
||**Output ON**<br>~~es~~<br>~~ee~~|**Output OFF**<br>~~ee~~<br>~~ee~~||
|820<br>~~a~~|5-12.5<br>~~es~~|0-0.5<br>~~ee~~|20 Max|



## **Notes** 

1. Remote ON/OFF circuits are isolated from input, output and PE. 

2. Please check if the polarity of the wire connector is the same as the external DC source. If not, the power would not turn on and the internal components may be damaged. 

3. You do not need an external resistance RO for current limit while the output voltage of external DC source is within the range of    5- 12.5V. If the output voltage exceeds 12.5V, please use the following equation for the value of current limit resistance RO. 

> [𝑉𝑉−(3.5 + 0.006𝑅𝑅][𝑖𝑖][)] 𝑅𝑅𝑂𝑂 =[𝑉] 0.006 

## **Functions** 

| 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## Start-up Time 

The time required for the output voltage to reach 90% of its final steady state set value, after the input voltage is applied. 

## Rise Time 

The time required for the output voltage to change from 10% to 90% of its final steady state set value. 

## Hold-up Time 

Time between the collapse of the AC input voltage, and the output falling to 95% of its steady state set value. 

## ■ **Graph illustrating the Start-up Time, Rise Time, and Hold-up Time** 

## Inrush Current 

Inrush current is the peak, instantaneous, input current measured and, occurs when the input voltage is first applied. For AC input voltages, the maximum peak value of inrush current will occur during the first half cycle of the applied AC voltage. This peak value decreases exponentially during subsequent cycles of AC voltage. 

## Dynamic Response 

The power supply output voltage will remains within ±5% of its steady state value, when subjected to a dynamic load from 0 to 100% of its rated current. 

##  **50% duty cycle / 5Hz to 100Hz** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## Overload & Overcurrent Protections (Auto-Recovery) 

The power supply’s Overload (OLP) and Overcurrent (OCP) Protections will be activated when output current exceeds 105-150% of IO (Max load). In such occurrence, the VO will start to droop and once the power supply has reached its maximum power limit, the protection is activated and the power supply will go into “Hiccup mode” (Auto-Recovery). The power supply will recover once the fault condition of the OLP and OCP is removed and IO is back within the specifications. 

## Overvoltage Protection (Latch Mode) 

The power supply’s overvoltage circuit will be activated when its internal feedback circuit fails. The output voltage shall not exceed its specifications defined on Page 3 under “Protections”. Power supply will latch off, and require removal/re-application of input AC voltage in order to restart. 

## **The power supply should be latch.** 

## Over Temperature Protection (Auto-Recovery) 

It is not recommended to prolong the duration of IO when it is <105% but >100%, since it may cause damage to the PSU. 

## Short Circuit Protection (Auto-Recovery) 

The power supply’s output OLP/OCP function also provides protection against short circuits. When a short circuit is applied, the output current will operate in “Hiccup mode”, as shown in the illustration in the OLP/OCP section on this page. The power supply will return to normal operation after the short circuit is removed. 

As described in load de-rating section, the power supply also has Over Temperature Protection (OTP). In the event of a higher operating temperature at 100% load; or, when the operating temperature is beyond what is recommended in the de-rating graph, the OTP circuit will be activated. When activated, power supply will latch off, until the surrounding air temperature drops to its normal operating temperature or the load is reduced as recommended in the de-rating graph. Removal/re-application of input AC voltage will then be required in order to restart 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

**PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## Operating Mode 

##  **Redundant Operation** 

In order to ensure proper redundant operation for the power supply units (PSUs), the output voltage difference between the two units must be kept at 0.45~0.50V for these 24V supplies. Follow simple steps given below to set them up for the redundant operation: 

## **Step 1.** 

Measure output voltage of PSU 1 and PSU 2. If PSU 1 is the master unit, then VO of PSU 1 must be higher than PSU 2. In order to set the output voltage, individually connect each power supply to 50% of rated load at any line voltage from 85-264Vac, and set the PSU 1 and PSU 2 output voltage. 

## **Step 2.** 

Connect the power supply units PSU 1 and PSU 2 to Vin 1 & Vin 2, respectively, of the DRR-20N (or 20A) module shown on the right of above diagram. 

## **Fig. 5 Redundant Operation Connection Diagram** 

## **Step 3.** 

Connect the system load from Vout. Please note that output voltage Vout from DRR module will be = VO (output voltage of power supply) – Vdrop* (in DRR module). 

*Vdrop will vary from 0.60V to 0.90V (Typical 0.65V) depending on the load current and surrounding air temperature. 

##  **Parallel Operation** 

The power supply units (PSUs) can also be used for parallel operation in order to increase the output power. The difference in output voltage between the two units must be kept to within 25mV of each other. This difference must be verified with the same output load connected independently to each unit. 

Parameters such as EMI, inrush current, leakage current, PARD, start up time will be different from those on the datasheet, when two units are connected in parallel. The user will need to verify that any differences will still allow the two power supplies connected in parallel will work properly in their product/application. 

**Fig. 6 Parallel Operation Connection Diagram** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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**TECHNICAL DATASHEET** 

## **PMF Panel Mount Power Supply** 24V 240W 1 Phase / PMF-24V240WC□□ 

## **Others** 

## PFC – Norm EN 61000-3-2 

## **Line Current Harmonic content** 

Typically, the input current waveform is not sinusodial due to the periodical peak charging of the input capacitor. In industrial environment, complying with EN 61000-3-2 is only necessary under special conditions. Complying to this standard can have some technical drawbacks, such as lower efficiency as well as some commercial aspects such as higher purchasing costs. Frequently, the user does not profit from fulfilling this standard, therefore, it is important to know whether it is mandatory to meet this standard for a specific application. 

## Attention 

Delta provides all information in the datasheets on an “AS IS” basis and does not offer any kind of warranty through the information for using the product. In the event of any discrepancy between the information in the catalog and datasheets, the datasheets shall prevail (please refer to www.DeltaPSU.com for the latest datasheets information). Delta shall have no liability of indemnification for any claim or action arising from any error for the provided information in the datasheets. Customer shall take its responsibility for evaluation of using the product before placing an order with Delta. 

Delta reserves the right to make changes to the information described in the datasheets without notice. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (October 2020, Rev. 03)** 

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