# AC/DC DIN Rail Power Supply (PSU), ITE & Laboratory, 1 Output, 120 W, 12 V, 10 A

![Product image](https://novapart.co/image/farnell:4414153/)

**URL**: https://novapart.co/products/DRF-12V120W1GBA/ac-dc-din-rail-power-supply-psu-ite-laboratory-1
**SKU**: DRF-12V120W1GBA
**Manufacturer**: DELTA ELECTRONICS
**Price**: €57.3500
**Stock**: 10+
**Lead Time**: 197 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Product Range | Force-GT DRF-120W Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 120W |
| Input Voltage Vac | 90V AC to 264V AC |
| Power Supply Output Type | Adjustable, Fixed |
| Output Current - Output 1 | 10A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Current - Output 4 | - |
| Output Voltage - Output 1 | 12V |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE & Laboratory |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:4414153/)

**TECHNICAL DATASHEET** 

**Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## **Highlights & Features** 

- Universal AC input voltage range 

- Built-in constant current circuit for charging applications 

- Full load operating temperature up to 60°C 

- • Cold start at -40°C 

- Ultra-Slim design 

- Long life electrolytic capacitor 

- Built-in DC OK relay and LED indicator 

- Conformal coating on PCBAs to protect against common dust and pollutants 

- Compliant with 80 PLUS Gold for 115 V Industrial 

**Safety Standards** C ® A CB Certified for worldwide use cA« GE) & MI eS 

**Model Number:** DRF-V120W1GA **Unit Weight:** 0.50 kg (1.10 lb) **Dimensions (H x W x D):** 123.6 x 30 x 116.8 mm (4.87 x 1.18 x 4.60 inch) 

## **General Description** 

The Force-GT Series DIN rail industrial power supply features high power density and high efficiency. The Series offers overcurrent protection in constant current mode, making it suitable for charging applications. Conformal coating is applied on the PCBAs to protect against dust and pollutants often found in harsh industrial environments. The Series’ electromagnetic radiated and conducted emissions are compliant with heavy industrial Class B Emission standard and Immunity standard, and complies with environmental protection standards RoHS Directive. 

## **Model Information** 

Force-GT DIN Rail Power Supply 

|**ModelNumber**|**Input Voltage Range**|**Rated OutputVoltage**|**Rated Output Current**|
|---|---|---|---|
|DRF-12V120W1GA|90-264 Vac<br>(127-375 Vdc)|12 Vdc|10.0 A|
|DRF-24V120W1GA||24 Vdc|5.0 A|
|DRF-48V120W1GA||48 Vdc|2.5 A|



## **Model Numbering** 

|**DR**|**F –**|□**V**|**120W**|**1**|**G**||**A**|
|---|---|---|---|---|---|---|---|
|DIN Rail Product Series|DIN Rail Product Series<br>F – Force|Output Voltage<br>12 – 12 V<br>24 – 24 V<br>48–48 V|Output<br>Power|Single<br>Phase|G – General Type Connector Type|G – General Type Connector Type<br>B – Screw Terminal<br>T – Spring Clamp Terminal*|Delta Standard|



*Options 

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B  T*<br>**----- End of picture text -----**<br>


All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

1 

**TECHNICAL DATASHEET** 

**Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## **Specifications** 

**Model Number** DRF-12V120W1GA DRF-24V120W1GA DRF-48V120W1GA 

## Input Ratings / Characteristics 

**==> picture [523 x 204] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||
|---|---|---|---|
|Nominal Input Voltage|100-240 Vac|
|Input Voltage Range|90-264 Vac|
|Nominal Input Frequency|50-60 Hz|
|Input Frequency Range|47-63 Hz|
|DC Input Voltage Range*|[1]|127-375 Vdc|
|Input Current|1.2 A typ. @ 115 Vac, 0.6 A typ. @ 230 Vac|
|Efficiency at 100% Load|93.0% typ. @ 230 Vac|93.5% typ. @ 230 Vac|93.0% typ. @ 230 Vac|
|Average Efficiency|
|90.0% typ. @ 115 Vac|90.5% typ. @ 115 Vac|90.5% typ. @ 115 Vac|
|(25%, 50%, 75%, 100%)|
|No Load Power Consumption|0.75 W max @ 115 Vac &|
|0.5 W max @ 115 Vac & 230 Vac|
|230 Vac|
|Max Inrush Current (Cold Start)|40 A typ. @ 230 Vac|
|Power Factor at 100% Load|> 0.95 @ 115 Vac & > 0.92 @ 230 Vac|
|Leakage Current|< 0.5 mA @ 240 Vac|

**----- End of picture text -----**<br>


*1 Power Supply can operate at DC Input voltage, please connect +pole to L, -pole to N and PE terminal to an earth wire or to the machine ground. 

## Output Ratings / Characteristics[*2] 

**==> picture [536 x 245] intentionally omitted <==**

**----- Start of picture text -----**<br>
|||||||
|---|---|---|---|---|---|
|Nominal Output Voltage|12 Vdc|24 Vdc|48 Vdc|
|Factory Set Point Tolerance|12 Vdc ± 1%|24 Vdc ± 1%|48 Vdc ± 1%|
|Output Voltage Adjustment Range|12-14 Vdc|24-28 Vdc|48-55 Vdc|
|Output Current|0-10.0 A|0-5.0 A|0-2.5 A|
|Output Power|120 W max|
|Line Regulation|± 0.5% @ 115 Vac & 230 Vac|
|Load Regulation|± 1.0%|± 0.5%|± 0.5%|
|PARD|[*3]|(20 MHz)|< 100 mVpp @ 0°C to +70°C|< 100 mVpp @ 0°C to +70°C|< 120 mVpp @ 0°C to +70°C|
|< 300 mVpp|@ -30°C to 0°C|< 300 mVpp|@ -30°C to 0°C|< 360 mVpp|@ -30°C to 0°C|
|Rise Time|30 ms typ. @ 115 Vac & 230 Vac|
|Start-up Time|300 ms typ. @ 115 Vac & 230 Vac|
|Hold-up Time|35 ms typ. @ 115 Vac & 230 Vac (100% load)|
|Dynamic Response|± 10% @ 115 Vac & 230 Vac input, 10-100% load|
|(Overshoot & Undershoot O/P Voltage)|(Slew Rate: 2.5 A/μS, 50% duty cycle @ 5 Hz & 10 kHz)|
|Start-up with Capacitive Loads|10,000 µF Max|10,000 µF Max|5,000 µF Max|
|Functional|DC OK Relay|30 V / 1 A The relay contact are normally “ON” (closed) when the output (Vout) is greater|
|Contact|than 90% typ. of its rated value.|

**----- End of picture text -----**<br>


*2 For power will be de-rating from 60°C to 70°C, and Vin < 100 Vac, see Engineering Data power de-rating information. 

*3 PARD is measured with an AC coupling mode, 5cm wires, and in parallel to end terminal with 0.1 μF ceramic capacitor & 47 μF electrolytic capacitor. PSU need to burn in around 5 minutes when AMB ≤ 0°C 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

2 

**TECHNICAL DATASHEET** 

**Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

**Model Number** DRF-12V120W1GA DRF-24V120W1GA DRF-48V120W1GA 

## Mechanical 

**==> picture [406 x 188] intentionally omitted <==**

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|||||
|---|---|---|---|
|Case Cover / Chassis|Metal|
|Dimensions (H x W x D)|123.6 x 30 x 116.8 mm (4.87 x 1.18 x 4.60 inch)|
|Unit Weight|0.50 kg|(1.10 lb)|
|Indicator|Green LED|DC OK|
|Cooling System|Convection|
|Terminal*|[4]|Input|3 Pins (Rated 600 V / 30 A)|
|Output|3 Pins (Rated 600 V / 30 A)|
|DC OK|2 Pins (Rated 300 V / 6 A)|
|Wire|Input|AWG 18-12 (Current rating can refer to “AWG Wire Table”)|
|Output|AWG 18-12 (Current rating can refer to “AWG Wire Table”)|
|DC OK|AWG 22-16 (Current rating can refer to “AWG Wire Table”)|
|Mounting Rail|Standard TS35 DIN Rail in accordance with EN 60715|
|Noise (1 Meter from power supply)|Sound Pressure Level (SPL) < 25 dBA|

**----- End of picture text -----**<br>


*4 The torque at the screw terminal connector shall not exceed 5.2 Kgf.cm. (4.5 lbf.in). 

## Environment 

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||||
|---|---|---|
|Surrounding Air|Operating|-30°C to +70°C (-40°C Cold Start)|
|Temperature|Storage|-40°C to +85°C|
|Power De-rating|Temperature|> 60°C de-rate power by 2.5 % / °C|
|Input|
|< 100Vac de-rate power by 1% / Vac|
|Voltage|
|Operating Humidity|5 to 90% RH (Non-Condensing)|
|Operating Altitude|0 to 5,000 Meters (16,400 ft.)|
|Shock Test|Non-|
|IEC 60068-2-27, Half Sine Wave: 50 G for duration of 11 ms; 3 times per direction|
|Operating|
|Vibration|IEC 60068-2-6, Sine Wave: 10 Hz to 500 Hz; 4 G peak;|
|Operating|
|60 min per axis for all X, Y, Z directions|
|Over Voltage Category|II (Compliance to EN 62477-1 OVC III with 2000 meters altitude)|
|Pollution Degree|2|

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All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

3 

**TECHNICAL DATASHEET** 

**Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

|Protections||||
|---|---|---|---|
|Overvoltage|<18 V, SELV Output, Latch<br>Mode|<34 V, SELV Output, Latch<br>Mode|<68 V, SELV Output,<br>Latch Mode|
|Overload / Overcurrent|105 - 150% of rated load current, Auto-recovery<br>Continuous current limit Mode*5(Vo>80%)|||
|Over Temperature|Latch Mode|||
|Short Circuit|Hiccup Mode, Non-Latching<br>(Auto-Recovery when the fault is removed)|||
|Internal Fust at L pin|T3.15 A / 250 V|||
|Protection Against Shock|Class I with PE*6connection|||



## Protections 

*5 Constant current limit protection for inductive and capacitive load applications 

*6 PE: Primary Earth 

## Reliability Data 

|Reliability Data|||
|---|---|---|
|MTBF|Telcordia|> 700,000 hrs|
||SR-332|I/P: 115 Vac & 230 Vac, O/P: 100% load, Ta: 25°C|
|Expected CapLife Time||10years(115 Vac & 230 Vac, 50% load@50°C)|



## Safety Standards / Directives 

|Electrical Safety|CB scheme<br>TUV Bauart<br>UL/cUL<br>EAC<br>BSMI<br>CCC|IEC 62368-1, IEC 60950-1, IEC 61010-1/-2-201<br>EN/BS EN 62368-1, EN/BS EN 61010-1/-2-201<br>UL 62368-1, UL 61010-1/-2-201<br>TP TC 004/2011<br>CNS14336-1<br>GB 4943.1|
|---|---|---|
|CE||In conformance with EMC Directive 2014/30/EU and Low Voltage Directive 2014/35/EU|
|UKCA||In conformance with Electrical Equipment (Safety) Regulations 2016 and Electromagnetic<br>Compatibility Regulations 2016|
|Galvanic Isolation|Input to<br>Output|4.0 kVac|
||Input to<br>Ground|2.0 kVac|
||Output to<br>Ground|1.5 kVac|
||Output to DC<br>OK|500 Vac|



All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

4 

**TECHNICAL DATASHEET** 

**Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

|EMC*7||||
|---|---|---|---|
|Emissions (CE & RE)|CISPR 32, EN/BS EN 55032, EN/BS EN 61000-6-4, AS/NZS CISPR32, EN/BS EN 61204-3,<br>KS C 9832<br>Compliance to FCC Title 47, EN 61000-6-3: Class B|||
|Component Power<br>Supply for General Use|EN/BS EN 61204-3|||
|Immunity|EN/BS EN 55035, KS C 9835, EN/BS EN 61000-6-2<br>Compliance to EN 61000-6-1|||
|Electrostatic<br>Discharge<br>IEC 61000-4-2|Level 4 Criteria A1)<br>Air Discharge: 15 kV<br>Contact Discharge: 8 kV|||
|Radiated Field<br>IEC 61000-4-3|Criteria A1)<br>80 MHz – 1 GHz, 10 V/M, 80% Modulation (1 kHz)<br>1.4 GHz – 2 GHz, 3 V/M, 80% Modulation (1 kHz)<br>2 GHz – 2.7 GHz,1 V/M,80% Modulation(1 kHz)|||
|Electrical Fast<br>Transient / Burst<br>IEC 61000-4-4|Level 3 Criteria A1)<br>2 kV|||
|Surge<br>IEC 61000-4-5|Level 4 Criteria A1)<br>Common Mode4): 4 kV<br>Differential Mode5): 2 kV|||
|Conducted<br>IEC 61000-4-6|Level 3 Criteria A1)<br>150 kHz – 80 MHz, 10 Vrms|||
|Power Frequency<br>Magnetic Fields<br>IEC 61000-4-8|Level 4 Criteria A1)<br>30 A/m|||
|Voltage Dips and<br>Interruptions<br>IEC 61000-4-11|0% residual; 1 cycle, Criteria B2)<br>40% residual; 10 cycle, Criteria C3)<br>70% residual;25 cycle,Criteria C3)|||
|Harmonic Current<br>Emission|IEC/EN/BS EN 61000-3-2, Class A & Class D|||
|Voltage Fluctuation and<br>Flicker|IEC/EN/BS EN 61000-3-3|||
|Voltage Sag Immunity<br>SEMI F47 – 0706|80% of 200 Vac<br>70% of 200 Vac<br>50%of 200 Vac|160 Vac, 1000 ms<br>140 Vac, 500 ms<br>100 Vac,200 ms|Criteria A1)<br>Criteria A1)<br>Criteria A1)|



- 1) Criteria A: Normal performance within the specification limits 

- 2) Criteria B: Temporary degradation or loss of function which is self-recoverable 

- 3) Criteria C: Output out of regulation, shuts down during test (Need to recycle AC power cord to normal operation after test) 

- 4) Asymmetrical: Common mode (Line to earth) 

- 5) Symmetrical: Differential mode (Line to line) 

- *7 Power supply is considered a component in the end-user's system. Please contact our local sales to get more information about the power supply EMC test setup. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

5 

**TECHNICAL DATASHEET** 

## **Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## **Block Diagram** 

**DRF-** ☐ **V120W1G** ☐ **A** 

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**----- Start of picture text -----**<br>
Transformer &<br>Power Stage<br>L PFC Converter — Vo+<br>& Inrush current  DC/DC Output Rectifier<br>AC Input EMI Filter limit Converter Filter DC Output<br>& Filter _. | | Vo-<br>N<br>DC OK<br>Control<br>Photo Coupler &<br>Over Temperature  PWM Control &  Feedback Control DC OK<br>Protection Over Power  (CV & CC) Relay DC OK<br>Protection<br>Do e [.<br>Photo Coupler &<br>Over Voltage<br>Protection<br>**----- End of picture text -----**<br>


## **Device Description** 

 **DRF-** ☐ **V120W1GBA** 

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1)  Input terminal block connector  5)  DC OK LED (Green)<br>2)  Output terminal block connector  6)  QR code for product link<br>3)  DC OK relay contact  7)  Universal mounting rail system<br>4)  DC voltage adjustment potentiometer<br>**----- End of picture text -----**<br>


All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

6 

**TECHNICAL DATASHEET** 

## **Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

##  **DRF-** ☐ **V120W1GTA** 

- 1) Input terminal block connector 

- 2) Output terminal block connector 

- 3) DC OK relay contact 4) DC voltage adjustment potentiometer 

- 5) DC OK LED (Green) 

- 6) QR code for product link 7) Universal mounting rail system 

## **Dimensions** 

**H x W x D:** 123.6 x 30 x 116.8 mm (4.87 x 1.18 x 4.60 inch) 

- **DRF-** ☐ **V120W1GBA** 

*Unless otherwise specified tolerance of dimension are ± 0.5 mm 

## **Item Device Description** 

- 1 Input terminal block connector Pin 1: L 

- Pin 2: N Pin 3: PE 

- 2 Output  terminal block connector Pin 1 to 2: V(-) Pin 3: V(+) 

- 3 DC OK relay contact 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. 7 **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

**TECHNICAL DATASHEET** 

## **Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

**H x W x D:** 123.6 x 30 x 116.8 mm (4.87 x 1.18 x 4.60 inch) 

- **DRF-** ☐ **V120W1GTA** 

*Unless otherwise specified tolerance of dimension are ± 0.5 mm 

## **Item Device Description** 

- 1 Input terminal block connector Pin 1: L 

- Pin 2: N Pin 3: PE 

- 2 Output  terminal block connector Pin 1 to 2: V(-) Pin 3: V(+) 

- 3 DC OK relay contact 

## **AWG Wire Table** 

|**Current Rating for PVC Wire**<br>~~eC~~|**Current Rating for PVC Wire**<br>~~eC~~|
|---|---|
|6 AWG|52.5 A|
|8 AWG|37.5 A|
|10 AWG|29.0 A|
|12 AWG|22.5 A|
|14 AWG|16.5 A|
|16 AWG|12.0 A|
|18 AWG|9.0 A|
|20 AWG|6.5 A|
|22 AWG|5.0 A|
|24 AWG|3.5 A|
|26 AWG|2.5 A|
|28 AWG|2.0 A|
|30 AWG|1.5 A|



All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

8 

**TECHNICAL DATASHEET** 

**Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## **Engineering Data** 

Output Load De-rating VS Surrounding Air Temperature 

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**----- Start of picture text -----**<br>
110<br>100<br>90<br>80<br>70<br>60<br>50<br>40<br>30<br>20<br>10<br>0<br>-30 -20 -10 0 10 20 30 40 50 60 70<br>Surrounding Air Temperature (°C)<br>Percentage of Max Load(%)<br>**----- End of picture text -----**<br>


## **Fig. 1 De-rating for Vertical Mounting Orientation** > 60°C de-rate power by 2.5 % / °C 

## **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. The PSU will be bouncing and start up time will not exceed 5 s when ambient temperature at ‐30°C. 

3. If the output capacity is not reduced when the surrounding air temperature > 60°C, the device will run into Over Temperature Protection. When activated, power supply will latch off, until the surrounding air temperature is lowered or the load is reduced as far as necessary to keep the device in working condition, and require removal/re-application of input AC voltage in order to restart. 

4. 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. 

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

6. Need to consider power de-rating if Surrounding Air Temperature is > 60°C. 

7. If the device has to be mounted in any other orientation, please leave a message via the Contact Us form. 

Output Load De-rating VS Input Voltage 

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**----- Start of picture text -----**<br>
110 110<br>100 100<br>90 90<br>80 80<br>70 70<br>60 60<br>50 50<br>40 40<br>30 30<br>20 20<br>10 10<br>0 a 0<br>90 100 264 (Vac)<br>127 142 375 (Vdc)<br>Input Voltage<br> AC Input       DC Input<br>[ |—<br>Fig. 2  De-rating for AC & DC Input Voltage<br>< 100 Vac de-rate power by 1 % / Vac<br>No de-rate power for DC Input<br>Percentage of Max Load (%)<br>**----- End of picture text -----**<br>


- No output power de-rating for the input voltage from 100 Vac to 264 Vac & 127 Vdc to 375 Vdc 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

9 

**TECHNICAL DATASHEET** 

## **Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## **Assembly & Installation** 

The power supply unit (PSU) can be mounted on 35 mm DIN rails in accordance with EN 60715. The device should be installed with input terminal block at the bottom. 

Each device is delivered ready to install. 

## Mounting 

## Dismounting 

## **Fig. 3.1  Mounting** 

Snap on the DIN rail as shown in Fig. 3.1: 

1. Tilt the unit upwards and insert it onto the DIN rail. 2. Push downwards until stopped. 

3. Press against the bottom front side for locking. 

## **Fig. 3.2  Dismounting** 

To uninstall, Delta provides an easy way to pull or slide down the latch with screw driver as shown in Fig. 3.2. Then slide the power supply unit (PSU) in the opposite direction, release the latch and pull out the power supply unit (PSU) from the rail. 

4. Shake the unit slightly to ensure that it is secured 

## **Connecting a Wire to Spring Clamp Terminals** 

1. Open the lever and insert the wire. 

2. Close the lever. 

To disconnect the wires, reverse the procedure. Flexible cables require ferrules. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

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**TECHNICAL DATASHEET** 

## **Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## Safety Instructions 

##  **Vertical Mounting** 

- 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 40 mm (1.57 inch) above and 20 mm (0.79 inch) below the device as well as a lateral distance of 5 mm (0.2 inch) to other units and if load less than 50%, lateral distance can be 0 mm. In case the adjacent device is a heat source, the lateral distance will be 15 mm (0.6 inch).** 

- 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! 

- The main power must be turned off before connecting or disconnecting wires to the terminals. 

- 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** 

DC OK Relay Contacts and LED Indicator Characteristics 

|**DC OK Relay Contacts Status**|**Characteristics**|
|---|---|
|Contact closes|The output voltage > 90% typ. of its steady state set value.|
|Contact opens|The output voltage < 90% typ. of its steady state set value.|



|**Operating Status**|**DC OK**<br>**(Green LED)**|**DC OK**<br>**Relay Contact**|
|---|---|---|
|Normal Operation|ON|Closed|
|Overload (Hiccup Mode)|INTERMITTENT|Open|
|Output Short Circuit|INTERMITTENT|Open|
|Over Temperature|OFF|Open|
|No Input Power|OFF|Open|



All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

11 

**TECHNICAL DATASHEET** 

## **Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

##  **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. 

## 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 ±10% of its steady state value, when subjected to a dynamic load from 10% to 100% of its rated current. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

12 

**TECHNICAL DATASHEET** 

## **Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## Overload & Overcurrent Protections (Continuous Current) 

The power supply offers constant current limit protection for inductive and capacitive load applications when output current range is 105~150% of IO (Max load) and output voltage large than 80%. Upon such an occurrence, the VO (output voltage) will start to droop. Once the power supply has reached its maximum power limit, the protection will be activated; and, the power supply will operate in continuous current. The power supply will recover once the cause of OLP or OCP is removed, and IO (output current) is back within the specified range. 

## 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 as described in “Protections” section. 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 (Latch Mode) 

## Short Circuit Protection (Auto-Recovery) 

The power supply’s output Short Circuit Protection function also provides protection against short circuits. When a short circuit is applied, the output current will operate in “Hiccup mode”. 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 (January 2024, Rev. 03.1)** 

13 

**TECHNICAL DATASHEET** 

**Force-GT DIN Rail Power Supply** DRF-120W series / DRF-V120W1GA 

## Operating Mode 

**Fig. 4     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. 

## **Others** 

## 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. 

## **Manufacturer and Authorized Representatives Information** 

## Manufacturer 

## Thailand 

Delta Electronics (Thailand) PCL. 909 Pattana 1 Rd., Muang, Samutprakarn, 10280 Thailand 

Taiwan 

Delta Electronics, Inc. 

3 Tungyuan Road, Chungli Industrial Zone, Taoyuan County 32063, Taiwan 

## Authorized Representatives 

The Netherlands 

Delta Greentech (Netherlands) B.V. Zandsteen 15, 2132 MZ Hoofddorp, The Netherlands 

## United Kingdom 

Delta Electronics Europe Limited 1 Redwood Court, Peel Park Campus, East Kilbride, Glasgow, G74 5PF, United Kingdom 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (January 2024, Rev. 03.1)** 

14 



## Links

- [View this product on Novapart](https://novapart.co/products/DRF-12V120W1GBA/ac-dc-din-rail-power-supply-psu-ite-laboratory-1)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/delta-electronics-power/drf-12v120w1gba/power-supply-ac-dc-12v-10a/dp/4414153)
---

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