DRC-12V30W1AZ

**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 

12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## **Highlights & Features** 

- Class II Double Isolation (No Earth connection is required) 

- Universal AC input voltage range and full power up to 55°C 

- • Power will not de-rate for the entire input voltage range • Efficiency > 85.0% @ 115Vac & 230Vac 

- Can be installed in compact cabinets 

- NEC Class 2 and Limited Power Source (LPS) approvals 

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

- • Safety approval according to IEC/EN/UL 60950-1, IEC/EN/UL 62368-1 and UL508 

## **Safety Standards** 

CB Certified for worldwide use 

*This picture is for reference to DRC-12V30W series only. 

**Model Number:** DRC-12V30W1A☐ **Unit Weight:** 0.14 kg (0.31 lb) **Dimensions (L x W x D):** 91 x 53 x 55.6 mm (3.58 x 2.09 x 2.19 inch) 

## **General Description** 

The DRC-12V30W1A☐ is part of the Chrome DIN rail power supply series, which is designed for use in compact cabinets for home automations and the food and beverage industry. Delta’s Chrome DIN rail power supply series offers double isolated input. This means that no Earth connection is required thus resulting in low leakage current. This product provides a universal input voltage range of 90264Vac, and a wide temperature range of -25°C to 71°C. The Chrome series is certified to safety standard according to IEC/EN/UL 60950-1, IEC/EN/UL 62368-1 and UL 508. NEC Class 2 and Limited Power Source (LPS) approvals are available for this product. 

## **Model Information** 

Chrome DIN Rail Power Supply 

|**ModelNumber**|**Input Voltage Ran**|**e Range**|**e Range**|**Rated OutputVoltage**|**Rated OutputVoltage**|**Rated OutputVoltage**|**Rated Output Current**|**Rated Output Current**|
|---|---|---|---|---|---|---|---|---|
|DRC-12V30W1A☐|90-264Vac(125-375Vdc)|||12Vdc|||2.10A|2.10A|
|**Model Numbering**|||||||||
|**DR**<br>**C –**|**24V**||**30W**||**1**|**A**||□|
|DIN Rail<br>Product Series|Output Voltage|Output Voltage|Output Power||Single Phase|No PFC||Z – Black Plastic Case|
|C – Isolation Class II|||(30W series)|||||G – Grey Plastic Case|
|Power Supply|||||||||



## **Model Numbering** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 

## 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## **Specifications** 

## Input Ratings / Characteristics 

|**Specifications**<br>Input Ratings / Characteristics|**Specifications**<br>Input Ratings / Characteristics||
|---|---|---|
|Nominal Input Voltage||100-240Vac|
|Input Voltage Range||90-264Vac|
|Nominal Input Frequency||50-60Hz|
|Input FrequencyRange||47-63Hz|
|Nominal DC Input Voltage*||125-375Vdc|
|Input Current||< 0.80A@115Vac, < 0.60A@230Vac|
|Efficiency at 100% Load||> 85.0%@115Vac & 230Vac|
|Max Power Dissipation|0% load|< 0.3W@115Vac & 230Vac|
||100% load|< 4.4W@115Vac & 230Vac|
|Max Inrush Current(Cold Start)||< 25A@115Vac, < 50A@230Vac|
|Leakage Current||< 0.25mA@240Vac|



* Fulfills test conditions for DC input. Safety approval for DC input can be obtained upon request. 

## Output Ratings / Characteristics** 

|Output Ratings / Characteristics**||
|---|---|
|Nominal Output Voltage|12Vdc|
|Factory Set Point Tolerance|12Vdc ± 2%|
|Output Voltage Adjustment Range|11.5-14.5Vdc|
|Output Current|0-2.10A(25W max.)|
|Output Power|25W|
|Line Regulation|< 0.5%(@90-264Vac input, 100% load)|
|Load Regulation|< 1.0% (@ 90-264Vac input, 0-100% load)|
|PARD***(20MHz)|< 100mVpp|
|Rise Time|< 70ms@nominal input(100% load)|
|Start-up Time|< 2,000ms@nominal input(100% load)|
|Hold-up Time|> 25ms @ 115Vac,<br>> 60ms @ 230Vac (100% load)|
|Dynamic Response<br>(Overshoot & Undershoot O/P Voltage)|± 5% @ 90-264Vac input, 10-100% load<br>(Slew Rate: 0.1A/μs, 50% duty cycle @ 5Hz to 100Hz)|
|Start-upwith Capacitive Loads|3,000µF Max|



**For power de-rating from 55°C to 71°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 (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## **Chrome DIN Rail Power Supply** 

## Mechanical 

|Mechanical|Mechanical||
|---|---|---|
|Case Cover||Plastic|
|Dimensions (L x W x D)||91 x 53 x 55.6 mm (3.58 x 2.09 x 2.19 inch)|
|Unit Weight||0.14 kg (0.31 lb)|
|Indicator|Green LED|DC OK|
|CoolingSystem||Convection|
|Terminal|Input|2 Pins(Rated 300V/25A)|
||Output|4 Pins(Rated 300V/25A)|
|Wire|Input / Output|AWG 22-12|
|MountingRail||Standard TS35 DIN Rail in accordance with EN 60715|
|Noise(1 Meter frompower supply)||Sound Pressure Level(SPL)< 25dBA|



## Environment 

|Environment|||
|---|---|---|
|Surrounding Air Temperature|Operating|-25°C to +71°C|
||Storage|-25°C to +85°C|
|Power De-rating||> 55°C de-rate power by 2.5% / °C|
|OperatingHumidity||5 to 95% RH(Non-Condensing)|
|OperatingAltitude||0 to 2,000 Meters(6,560 ft)|
|Shock Test|Operating|IEC 60068-2-27, Half Sine Wave: 4G for a duration of 22ms, 3<br>shocks for each 3 directions, 9 times in total|
|Vibration|Operating|IEC 60068-2-6, Sine Wave: 10-500Hz @ 19.6m/S² (2G peak);<br>10 min per cycle, 60 min for all X, Y, Z directions|
|Over Voltage Category||II|
|Pollution Degree||2|



## Protections 

|Protections||
|---|---|
|Overvoltage|< 17.4V, SELV Output, Latch Mode|
|Overload / Overcurrent|> 130% of rated load current, Hiccup Mode,<br>Non-Latching (Auto-Recovery)|
|Over Temperature|> 75°C Surrounding Air Temperature @ 100% load,<br>Latch Mode|
|Short Circuit|Hiccup Mode, Non-Latching<br>(Auto-Recovery when the fault is removed)|
|Internal Fuse at L pin|T3.15AH|
|Degree of Protection|IP20|
|Protection Against Shock|Class II(No PE* connection is required)|



*PE: Primary Earth 

## Reliability Data 

## MTBF 

Expected Cap Life Time 

> 500,000 hrs. as per Telcordia SR-332 I/P: 100Vac, O/P: 100% load, Ta: 35°C 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 (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## Safety Standards / Directives 

|Safety Standards / Directives|Safety Standards / Directives||
|---|---|---|
|SafetyEntryLow Voltage||SELV(EN 60950)|
|Electrical Safety|TUV Bauart|EN 60950-1, EN 62368-1|
||UL/cUL recognized|UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E131881)<br>UL 62368-1 and CSA C22.2 No. 62368-1(File No. E131881)|
||CB scheme|IEC 60950-1, IEC 62368-1, Limited Power Source(LPS)|
|Industrial Control Equipment|UL/cUL listed|UL 508 and CSA C22.2 No. 107.1-01(File No. E338991)|
|Class 2 Power Supply|UL/cUL recognized|UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E131881)<br>UL 62368-1 and CSA C22.2 No. 62368-1(File No. E131881)|
|CE||In conformance with EMC Directive 2014/30/EU and<br>Low Voltage Directive 2014/35/EU|
|Galvanic Isolation|Input to Output|3.0KVac|



|EMC||
|---|---|
|Emissions (CE & RE)|Generic Standards: CISPR 32, EN 55032,<br>FCC Title 47: Class B|
|Immunity|Generic Standards: EN 55024|
|Electrostatic Discharge<br>IEC 61000-4-2|Level 3 Criteria A1)<br>Air Discharge: 8kV<br>Contact Discharge: 4kV|
|Radiated Field<br>IEC 61000-4-3|Level 2 Criteria A1)<br>80MHz-1GHz, 3V/M with 1kHz tone / 80% modulation|
|Electrical Fast Transient / Burst<br>IEC 61000-4-4|Level 3 Criteria A1)<br>1kV|
|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 2 Criteria A1)<br>150kHz-80MHz, 3Vrms|
|Power Frequency Magnetic Fields<br>IEC 61000-4-8|Criteria A1)<br>1A/Meter|
|Voltage Dips and Interruptions<br>IEC 61000-4-11|> 95% dip; 0.5 cycle(10ms); Self Recoverable|
|Harmonic Current Emission|IEC/EN 61000-3-2, Class A|
|Voltage Fluctuation and Flicker|IEC/EN 61000-3-3|



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 (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

**Chrome DIN Rail Power Supply** 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## **Block Diagram** 

## **Device Description** 

- 1) Input terminal block connector 

- 2) Output terminal block connector 

- 3) DC voltage adjustment potentiometer 

- 4) DC OK control LED (Green) 

- 5) Universal mounting system 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 

## 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## **Dimensions** 

**L x W x D:** 91 x 53 x 55.6 mm (3.58 x 2.09 x 2.19 inch) 

## **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 exceeds its specification as defined on Page 3 under “Environment”, the device may run into Over Temperature Protection. When activated, the output voltage will go into latch mode and recover when AC power recycles. 

3. In order for the device to function in the manner intended, it is also necessary to keep a safety distance as recommended in the safety instructions 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! 

## **Fig. 1 De-rating for Vertical Mounting Orientation** > 55°C de-rate power by 2.5% / °C 

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

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 

## 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## Output Load De-rating VS Input Voltage 

- No output power de-rating across the entire input voltage range 

## **Assembly & Installation** 

The power supply unit (PSU) can be mounted on 35 mm DIN rails in accordance with EN60715. The device should be installed with input terminal block at the bottom. 

Each device is delivered ready to install. 

Mounting 

## Dismounting 

**==> picture [199 x 20] intentionally omitted <==**

**----- Start of picture text -----**<br>
¥@ *@<br>**----- End of picture text -----**<br>


**Fig. 2.1  Mounting** 

Snap on the DIN rail as shown in Fig. 2.1: 

1. Pull the unit’s DIN rail latch OUT. 

2. Tilt the unit slightly upwards, hook the top end onto the DIN rail and push downwards until stopped. 

## **Fig. 2.2  Dismounting** 

To uninstall, pull the unit’s DIN rail latch OUT as shown in Fig. 2.2. Tilt the bottom part of the unit out. Push the unit up and pull out from the DIN rail. 

3. Position the bottom front end against the DIN rail. 

4. Push the unit’s latch DIN rail IN to lock. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 

## 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## Safety Instructions 

- 

- 

   - ALWAYS switch mains of input power OFF before connecting and disconnecting the input voltage to the unit. If mains are not turned OFF, there is risk of explosion / severe damage. 

   - **To guarantee sufficient convection cooling, keep a distance of 50 mm** 

   - **(1.97 inch) above and below the device as well as a lateral distance of 25 mm (0.98 inch) to other units.** 

- 

      - Note that the enclosure of the device can become very hot depending on the surrounding air temperature and load of the power supply. Risk of burns! 

   - DO NOT insert any objects into the unit. 

- —— • Hazardous voltages may be present for up to 5 minutes after the input mains voltage is disconnected. Do not touch the unit during this time. 

   - 

- The power supplies are built in units and must be installed in a cabinet or room (condensation free environment and indoor location) that is relatively free of conductive contaminants. 

## **Functions** 

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

## 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. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## 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 10 to 100% of its rated current. 

 **50% duty cycle / 5Hz to 100Hz** 

## External Input Protection Device 

The unit is protected with internal fuse (not replaceable) at L pin and it has been tested and approved on 20A (UL) and 16A (IEC) branch circuits without additional protection device. An external protection device is only required if the supplying branch has an ampacity greater than above. Thus, if an external protective device is necessary, or, utilized, a minimum value of 13A B- or 8A C- characteristic breaker should be used. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## Overload & Overcurrent Protections (Auto-Recovery) 

The power supply’s Overload (OLP) and Over current (OCP) Protections will be activated when output current (IO) exceeds its specification as defined on Page 3 under “Protections”. In such occurrence, 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, and require removal/re-application of input AC voltage in order to restart. 

## Over Temperature Protection (Latch Mode) 

It is not recommended to prolong the duration of IO when it is less than OLP/OCP point, but greater than 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, 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 (December 2020, Rev. 06)** 

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**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 

## 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## Operating Mode 

**Fig. 3     DC Input Operation Connection Diagram** 

##  **DC Input Operation** 

## **Step 1.** 

Use a battery or similar DC source. 

## **Step 2.** 

Connect +pole to L and -pole to N. 

## **Step 3.** 

Connect the PE terminal to an earth wire or to the machine ground. 

**Fig. 4     2 of 3 Phase System Input Operation Connection Diagram** 

##  **2 of 3 Phase System Input Operation** 

Delta's Chrome can use on 2 of 3 phase system. Please refer to the following step. 

## **Step 1.** 

The input voltage applied from Line to Neutral is below the maximum rated input. The input voltage shall be below 240Vac +10%. 

## **Step 2.** 

The external protector is needed on N (Neutral) input line to secure a safety. N line does not have internal fuse protection. An appropriate fuse or circuit breaker should be connected in series with N input line connection like the following. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2020, Rev. 06)** 

11 

**TECHNICAL DATASHEET** 

## **Chrome DIN Rail Power Supply** 

## 12V 25W 1 Phase (Class II & NEC Class 2) / DRC-12V30W1A □ 

## **Others** 

## PFC – Norm EN 61000-3-2 

## **Line Current Harmonic content** 

Typically, the input current waveform is not sinusoidal 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 (December 2020, Rev. 06)** 

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