# AC/DC DIN Rail Power Supply (PSU), ITE & Laboratory Equipment, 1 Output, 480 W, 24 VDC, 20 A

![Product image](https://novapart.co/image/farnell:3649092/)

**URL**: https://novapart.co/products/DRM-24V480W1PN/ac-dc-din-rail-power-supply-psu-ite-laboratory
**SKU**: DRM-24V480W1PN
**Manufacturer**: DELTA ELECTRONICS
**Price**: €199.6500
**Stock**: 10+
**Lead Time**: 267 days (indicative)

## Specifications

| Parameter | Value |
|---|---|
| Svhc | To Be Advised |
| Product Range | CliQ M Series |
| No. Of Outputs | 1 Output |
| Output Power Max | 480W |
| Input Voltage Vac | 85V AC to 276V AC |
| Power Supply Output Type | Adjustable, Fixed |
| Output Current - Output 1 | 20A |
| Output Current - Output 2 | - |
| Output Current - Output 3 | - |
| Output Current - Output 4 | - |
| Output Voltage - Output 1 | 24VDC |
| Output Voltage - Output 2 | - |
| Output Voltage - Output 3 | - |
| Output Voltage - Output 4 | - |
| Power Supply Applications | ITE & Laboratory Equipment |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3649092/)

**TECHNICAL DATASHEET** 

**CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## **Highlights & Features** 

- Universal AC input voltage range 

- High power density in corrosion resistant aluminium casing 

- • Power Boost of 150% up to 7 seconds 

- Advanced Power Boost (APB) 

- DNV GL and ABS approvals for maritime applications 

- Extreme low temperature cold start at -40°C 

- Built-in DC OK Contact and LED indicator for DC OK/ Overload 

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

- Certified according to IEC/EN/UL 62368-1 

## **Safety Standards** 

CB Certified for worldwide use 

**Model Number:** DRM-24V480W1PN **Unit Weight:** 1.40 kg (3.09 lb) **Dimensions (L x W x D):** 124 x 82 x 127 mm (4.88 x 3.23 x 5.00 inch) 

## **General Description** 

Delta Electronics is introducing one of the slimmest DIN rail industrial power supplies in its class, the CliQ M DIN rail power supply series. To fulfill the demands in maritime applications, the product is designed according to major industrial and maritime (Lloyd’s Register) safety standards. Other features include compliance with harmonic current IEC/EN 61000-3-2, class A, built-in DC OK contacts, and an LED for indicating DC OK and Overload conditions. In addition to having Power Boost of 150% up to 7 seconds, the CliQ M series is the first in the CliQ family to feature Advanced Power Boost (APB). With multiple loads connected in a system, a large inrush current could be drawn (demanded) due to one fault load. This will be detected by APB. The APB will trip the circuit breaker (circuit breaker with appropriate rating based on the system load) on the current path of the fault load due to high current. This thus prevents the system from shutting down while the other connected current paths continue to operate without interruption. 

## **Model Information** 

CliQ M DIN Rail Power Supply 

|**ModelNumber**||**Input Voltage Range**|**Input Voltage Range**|**Input Voltage Range**|**Rated OutputVoltage**|**Rated OutputVoltage**|**Rated OutputVoltage**|**Rated Output Curr**|**Rated Output Current**|
|---|---|---|---|---|---|---|---|---|---|
|DRM-24V480W1PN||85-276Vac(88-375Vdc)|||24Vdc|||20.0A|20.0A|
|**Model Numbering**||||||||||
|**DR**|**M –**||**24V**|**480W**||**1**|**P**||**N**|
|DIN Rail|CliQ M Series||Output Voltage|Output Power||Single Phase|Advanced||N - Metal Case,|
||||||||Power Boost||without Class I, Div 2|
||||||||(APB)||and ATEX approvals|



## **Model Numbering** 

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

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## **Specifications** 

Input Ratings / Characteristics 

|**Specifications**<br>Input Ratings / Characteristics||||||
|---|---|---|---|---|---|
|Nominal Input Voltage||100-240Vac|||Applicable for TN-, TT and IT mains<br>networks|
|Input Voltage Range||85-276Vac|||Continuouslyoperating|
|Input Frequency|Nom.|50-60Hz|||Range: 47-63Hz|
|Nominal DC Input Voltage||110-300Vdc||||
|DC input Voltage Range*||88-375Vdc|||Continuously operating, with safety<br>approval accordingto IEC/EN/UL 60950-1.|
|||||||
|||100Vac|120Vac|230Vac||
|Input Current|Typ.|5.11A|4.24A|2.29A|At 24V, 20A. Refer to Fig. 1 onpage 3.|
||Max.|5.30A|4.60A|2.50A|At 24V, 20A.|
|Efficiency|Typ.|93.37%|93.83%|94.17%|At 24V, 20A. Refer to Fig. 2 onpage 3.|
||Min.|91.40%|92.20%|93.40%|At 24V, 20A.|
|Average Efficiency|Typ.|92.25%|92.54%|92.86%|At 24V 5.0A (25%), 24V 10.0A (50%)<br>24V 15.0A (75%), 24V 20.0A (100%)|
||Min.|90.50%|91.50%|92.00%||
|Max Power Dissipation|Typ.|5.29W|4.75W|2.84W|At 24V, 0A. Refer to Fig. 3 onpage 3.|
||Max.|9.20W|9.40W|10.20W|At 24V, 0A.|
||Typ.|34.08W|31.58W|29.70W|At 24V, 20A. Refer to Fig. 3 onpage 3.|
||Max.|46.00W|40.60W|34.00W|At 24V, 20A.|
|Max Inrush Current (Cold Start)|Typ.|11A|9A|7A|Entire operating temperature range|
||Max.|13A||||
|Max Inrush Energy (Cold Start)|Max.|5A2s||||
|Power Factor|Typ.|0.99|0.99|0.95|At 24V, 20A. Refer to Fig. 4 atpage 3.|
||Min.|0.93|0.92|0.87|At 24V, 20A.|
|Crest Factor|Max.|1.6|1.7|2.05|At 24V, 20A.|
|Leakage Current<br>(Enclosure to Neutral)||< 0.31mA / 0.77mA<br>< 0.45mA / 1.13mA<br>< 0.80mA / 2.00mA|||110Vac, 50Hz, TN/TT system / IT system<br>132Vac, 50Hz, TN/TT system / IT system<br>264Vac,50Hz,TN/TT system / IT system|



*Safety approval according to IEC/EN/UL 60950-1 and IEC/EN/UL 62368-1. 

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

**Fig. 1     Input Current Vs Output Load at 24V** 

**Fig. 2     Efficiency Vs Output Load at 24V** 

**Fig. 3     Max Power Dissipation Vs Output Load at 24V** 

**Fig. 4     Power Factor Vs Output Load at 24V** 

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

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Output Ratings / Characteristics* 

|Output Ratings / Characteristics*|Output Ratings / Characteristics*|||
|---|---|---|---|
|Nominal Output Voltage||24Vdc||
|FactorySet Point Tolerance||24Vdc ± 1.0%||
|Output Voltage Adjustment Range||24-28Vdc||
|Output Current|Nom.<br>Nom.|20.0A / 17.0A<br>30.0A / 25.5A<br>(Slew rate 0.1A/µs)|Continuously operating at 24V / 28V<br>Power Boost for 5 seconds at 24V / 28V,<br>refer to the details in the Function section|
|Output Power|Nom.<br>Nom.|480W / 476W<br>720W / 714W|Continuously operating at 24V / 28V<br>Power Boost for 5 seconds at 24V / 28V,<br>refer to the details in the Functions<br>section|
|Power Boost Duration<br>Power Boost Recovery Time|Typ.<br>Max.<br>Typ.|5 seconds<br>7 seconds<br>17 seconds|Duration after which output voltage start<br>to droop. Refer to the details in the<br>Function section at Overload &<br>Overcurrent Protections<br>Required wait duration before next Power<br>Boost is taken, refer to the details in the<br>Function section|
|Advanced Power Boost<br>(Slew rate 0.1A/µs)|Typ.<br>Typ.<br>Typ.|40A @ 50ms, resistive load<br>100A @ 2ms, resistive load<br>100A @ 5ms, resistive load|Output voltage will drop (Refer to the<br>details in the Function section)|
|Line Regulation|Max.|10mV(@85-276Vac input, 100% load)||
|Load Regulation|Max.|100mV(@85-276Vac input, 0-100% load)||
|PARD**|Max.|100mVpp|20Hz to 20MHz, 50Ohm, warm up for<br>10mins|



*For power de-rating from 60°C to 70°C, see power de-rating on page 10. 

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

|||100Vac|120Vac|230Vac||
|---|---|---|---|---|---|
|Rise Time|Max.|100ms|||0µF, 24V, 20A.|
||Max.|100ms|||20,000µF, 24V, 20A.|
|Start-up Time|Max.|1000ms|||At 24V, 20A.|
|Hold-up Time|Typ.|90ms|||At 24V, 10A.|
||Min.|62ms|||At 24V, 10A.|
||Typ.|43ms|||At 24V, 20A.|
||Min.|30ms|||At 24V, 20A.|
|Dynamic Response<br>(Overshoot & Undershoot O/P Voltage)|Max.|± 5% @ 0-100% load|||Slew rate 0.1A/µs<br>(@ 5Hz, 50Hz & 1kHz, 50% Duty Cycle)|
|Start-up with Capacitive Loads|Max.|20,000µF||||
|Output Capacitance|Typ.|8,500µF|||Built-in output capacitors|
|Functional|DC OK Relay<br>Contact|Rated: 30V at 1A, resistive load<br>The relay contact are normally “ON” (closed) when the output (Vout) is<br>greater than 90% of its rated value.||||



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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Mechanical 

|Mechanical||||
|---|---|---|---|
|Case Cover / Chassis||Aluminium||
|Dimensions (L x W x D)||124 x 82 x 127 mm(4.88 x 3.23 x 5.00 inch)||
|Unit Weight||1.40 kg (3.09 lb)||
|Indicator|Green LED|DC OK||
||Red LED|Overload||
|Cooling System||Convection||
|Terminal|Input|3 Pins(Rated 600V/35A)||
||Output|6 Pins(Rated 300V/28A)||
|Wire|Input|AWG 18-8||
||Output|AWG 14-12||
|Mounting Rail||Standard TS35 DIN Rail in accordance with EN 60715||
|Noise (1 Meter from power supply)||Sound Pressure Level(SPL)< 25dBA||
|Environment||||
|Surrounding Air Temperature|Operating|-25°C to +70°C(Cold start -40°C)||
||Storage|-40°C to +85°C||
|Power De-rating|Vertical<br>Mounting|> 60°C de-rate power by 2.5% / °C||
||Horizontal<br>Mounting|> 40°C de-rate power by 2.5% / °C||
|OperatingHumidity||5 to 95% RH(Non-Condensing)||
|Operating Altitude||0 to 5,000 Meters (16,400 ft.) for ITE application<br>0 to 2,500 Meters (8,200 ft.) for Industrial application||
|Shock Test|Non-Operating|IEC 60068-2-27, Half Sine Wave: 30G for a duration of 18ms;<br>3 times per direction, 6 times in total||
|Vibration|Non-Operating|IEC 60068-2-6, Sine Wave: 10-500Hz; 3G peak; displacement of<br>0.35mm; 60 min per axis for all X, Y, Z directions||
|Bump Test|Operating|IEC 60068-2-29, Half Sine Wave: 10G for a duration of 11ms,<br>1,000 times per direction, 6,000 times in total||
|Over Voltage Category||III|According to IEC/EN 62477-1 / EN 60204-1<br>(clearance and creepage distances) and<br>IEC 62103 (safety part)|
|Pollution Degree||2||



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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Protections 

|Protections|||
|---|---|---|
|Overvoltage|28.8 – 35.2V, SELV Output,<br>Hiccup Mode, Non-Latching<br>(Auto-Recovery)|Refer to the details in the Function<br>section|
|Overload / Overcurrent|> 150% of rated load current,<br>Constant current, Hiccup<br>Mode (Auto-Recovery)|Refer to the details in the Function<br>section|
|Over Temperature|< 80°C Surrounding Air<br>Temperature @ 100% load,<br>Non-Latching (Auto-Recovery)|<br>Refer to the details in the Function<br>section|
|Short Circuit|Hiccup Mode, Non-Latching<br>(Auto-Recovery when the fault<br>is removed)|<br>Load impedance≤100mOhm, refer to<br>the details in the Function section|
|Transient Surge Voltage Protection|MOV(Metal Oxide Varistor)||
|Internal Fuse at L pin|T8A||
|Degree of Protection|IP20||
|Protection Against Shock|Class I with PE* connection||



*PE: Primary Earth 

## Reliability Data 

|Reliability Data||||
|---|---|---|---|
|MTBF (as per Telcordia SR-332)|778,800 hrs.||I/P: 100Vac, O/P: 24V, 20A, Ta: 25°C|
||468,900 hrs.||I/P: 100Vac, O/P: 24V, 20A, Ta: 40°C|
|||||
||100Vac|230Vac||
|Expected Cap Life Time**|131,400 hrs.||O/P: 24V, 20A, Ta: 25°C|
||89,880 hrs.|103,300 hrs.|O/P: 24V, 20A, Ta: 40°C|
||131,400 hrs.||O/P: 24V, 10A, Ta: 40°C|



**Estimated lifetime when 24 hours operating a day and E-cap’s manufacturer guarantee at 131,400 hrs (15 years) as maximum limit of lifetime. 

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Safety Standards / Directives 

|Safety Standards / Directives|Safety Standards / Directives|||
|---|---|---|---|
|Electrical Equipment of Machines||EN 60204-1(over voltage categoryIII)||
|Electrical Equipment for Use in Electrical Power<br>Installations||IEC/EN 62477-1 / IEC 62103||
|Safety Entry Low Voltage||PELV*(EN 60204-1), SELV(EN 60950-1)||
|Electrical Safety|SIQ Bauart|EN 60950-1, EN 62368-1, EN 61558-1, EN 61558-2-16, EN 61010-1,<br>EN 61010-2-201||
||UL/cUL recognized|UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E191395)<br>UL 62368-1 and CSA C22.2 No. 62368-1(File No. E191395)||
||CB scheme|IEC 60950-1, IEC 62368-1, IEC 61558-1, IEC 61558-2-16, IEC 61010-1,<br>IEC 61010-2-201||
|Industrial Control Equipment|UL/cUL listed|UL 508 and CSA C22.2 No. 107.1-01(File No. E315355)||
||CSA|CSA C22.2 No. 107.1-01(File No. 181564)||
|Maritime|DNV GL|Germanischer Lloyd classified||
||ABS|American Bureau for Shipping) PDA<br>Environmental category: C,EMC2||
|CE||In conformance with EMC Directive 2014/30/EU and<br>Low Voltage Directive 2014/35/EU||
|Galvanic Isolation||4.54KVac|Input / Output|
|||2.5KVac|Input / PE|
|||4.54KVac|Input / DC OK relaycontact**|
|||1.5KVac|Output / PE|
|||0.5KVac|Output / DC OK relaycontact|
|||1.5KVac|DC OK relaycontact / PE|
|Isolation Resistance||> 5MOhm|Input to Output, 500Vdc|
|PE Resistance||< 0.1Ohm||



*Output must be earthed in the final unit in order to comply with PELV requirements according to standard EN 60204-1. 

**Recommend to connect DC OK pins together with output pins. 

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## EMC 

|EMC|EMC||||
|---|---|---|---|---|
|Emissions (CE & RE)||Generic Standards: EN 61000-6-3<br>CISPR 32, EN 55032, KN 32, CISPR 11, EN 55011, FCC Title 47: Class B|||
|Component Power Supplyfor General Use||EN 61204-3|||
|Immunity||Generic Standards: EN 55024, KN 35, EN 61000-6-2|||
|Electrostatic Discharge|IEC 61000-4-2|Level 4 Criteria A1)<br>Air Discharge: 15kV<br>Contact Discharge: 8kV|||
|Radiated Field|IEC 61000-4-3|Level 3 Criteria A1)<br>80MHz-1GHz, 10V/M, 80% modulation (1kHz)<br>1.4GHz-2GHz, 10V/M, 80% modulation (1KHz)<br>2GHz-2.7GHz,10V/M,80% modulation(1KHz)|||
|Electrical Fast Transient / Burst|IEC 61000-4-4|Level 4 Criteria A1)<br>4kV|||
|Surge|IEC 61000-4-5|Level 4 Criteria A1)<br>Common Mode3): 4kV<br>Differential Mode4): 2kV|||
|Conducted|IEC 61000-4-6|Level 3 Criteria A1)<br>150kHz-80MHz, 10Vrms|||
|Power Frequency Magnetic<br>Fields|IEC 61000-4-8|Criteria A1)<br>30A/Meter|||
|Voltage Dips and Interruptions|IEC 61000-4-11|0% of 100Vac<br>40% of 100Vac<br>70% of 100Vac<br>0% of 100Vac<br>0% of 240Vac<br>40% of 240Vac<br>70% of 240Vac<br>0% of 240Vac|0Vac, 20ms<br>40Vac, 200ms<br>70Vac, 500ms<br>0Vac, 5000ms<br>0Vac, 20ms<br>96Vac, 200ms<br>168Vac, 500ms<br>0Vac,5000ms|Criteria A1)<br>Criteria A1)<br>Criteria A1)<br>Criteria B2)<br>Criteria A1)<br>Criteria A1)<br>Criteria A1)<br>Criteria B2)|
|Low Energy Pulse Test<br>(Ring Wave)|IEC 61000-4-12|Level 3 Criteria A1)<br>Common Mode3): 2kV<br>Differential Mode4): 1kV|||
|Harmonic Current Emission||IEC/EN 61000-3-2, Class A|||
|Voltage Fluctuation and Flicker||IEC/EN 61000-3-3|||
|Voltage Sag Immunity<br>SEMI F47 – 0706||80% of 120Vac<br>70% of 120Vac<br>50% of 120Vac|96Vac, 1000ms<br>84Vac, 500ms<br>60Vac, 200ms|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) Asymmetrical: Common mode (Line to earth) 

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

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## **Block Diagram** 

## **Device Description** 

- 1) Input terminal block connector 

- 2) Output and DC OK relay contact terminal block connector 

- 3) DC Voltage adjustment potentiometer 

- 4) DC OK LED (Green) 

- 5) Overload LED (Red) 

- 6) 

   - Universal mounting rail system 

- 7) Gas discharge tube (on left side of housing) used for surge protection. 

Disconnect gas discharge tube (by removing Philips head screw) during dielectric test of > 0.9KVac or 1.3KVdc 

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

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## **Dimensions** 

**L x W x D:** 124 x 82 x 127 mm (4.88 x 3.23 x 5.00 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. 5. 

=&\ continuously used outside the shaded region, aa 80 \ \ \ refer to the graph shown in Fig. 5. 8 70 q 2. If the output capacity is not reduced when the © surrounding air temperature exceeds its ~‘ = specification as defined on Page 5 under 550 y “Environment”, the device will run into Over ®\ 

2. If the output capacity is not reduced when the surrounding air temperature exceeds its specification as defined on Page 5 under “Environment”, 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. 

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. 

## **Fig. 5 De-rating for Vertical Mounting Orientation** > 60°C de-rate power by 2.5% / °C 

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. 

**De-rating for Horizontal Mounting Orientation** > 40°C de-rate power by 2.5% / °C 

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

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

Output Load De-rating VS Input Voltage 

- No output power de-rating for the input voltage range 

## **Assembly & Installation** 

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

Each device is delivered ready to install. 

1. Tilt the unit upwards and insert it onto the DIN rail. Snap on the DIN rail as shown in Fig. 6.1. 

2. Push downwards until stopped. 

3. Press against the bottom front side for locking. 

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

5. To uninstall, pull or slide down the latch with screw driver as shown in Fig. 6.2. 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. 

## Mounting 

**==> picture [59 x 10] intentionally omitted <==**

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


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**----- Start of picture text -----**<br>
Fig. 6.1  Mounting  Fig. 6.2  Dismounting<br>**----- End of picture text -----**<br>


- In accordance to EN 60950 / UL 60950 and EN 62368 / UL 62368, flexible cables require ferrules. Use appropriate copper cables designed to sustain operating temperature of: 1. 60°C, 60°C / 75°C for USA 

2. At least 90°C for Canada and IEC/EN61010-1, IEC/EN61010-2-201. 

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

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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Safety Instructions 

- **Vertical Mounting** 

##  **Horizontal Mounting** 

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

- If the unit is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. 

- **To guarantee sufficient convection cooling, please refer to the following instructions to ensure sufficient clearance around the device. Vertical Mounting: 40mm (1.57 inch) above and 20mm (0.79 inch) below the device as well as a lateral distance of 5mm (0.2 inch) to other units. In case the adjacent device is a heat source, the lateral distance will be 15mm (0.6 inch). Horizontal Mounting: 40mm (1.57 inch) above and below the device as well as a lateral distance of 20mm (0.79 inch) to other units.** 

- The external enclosure where the unit will be installed shall meet the requirements for mechanical, electrical and fire enclosure. 

- Note that the enclosure of the device can become very hot depending on the surrounding air temperature and output load connected to the device. 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. 

- Dangerous voltages present for at least 5 minutes after disconnected all sources of power. 

- 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. 

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

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**TECHNICAL DATASHEET** 

**CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## **Functions** 

DC OK Relay Contacts and LED Indicator Characteristics 

|**Operating Status**|**DC OK**<br>**(Green LED)**|**Overload**<br>**(Red LED)**|**DC OK**<br>**Relay Contact**|
|---|---|---|---|
|Normal Operation|ON|OFF|Closed|
|During Power Boost|ON|OFF|Closed|
|Overload<br>(Vout≤90% of adjusted voltage)|OFF|ON|Open|
|Output Short Circuit|OFF|Flashing|Open|
|Over Temperature|OFF|Flashing|Open|
|No Input Power|OFF|OFF|Open|



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**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

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

## Start-up Time 

The time required for the output voltage before output voltage rise up, after the input voltage is applied. 

## Rise Time 

The time required for the output voltage to change from 0% to 95% 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 ±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 1KHz** 

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

14 

**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Overload & Overcurrent Protections (Auto-Recovery) 

The power supply’s Overload (OLP) and Overcurrent (OCP) Protections will be activated when output current is > 150% of IO (output current). When this occurs, the output current will limit to 22A typ. (refer to Ⓐ below) and VO (output voltage) will start to droop. Once VO is below approximately 18Vdc typ., the power supply will start to operate in “Hiccup mode” as described in short circuit protection. The power supply will recover once the fault condition due to OLP or OCP is removed, then IO is back within its specified limits. 

## Overvoltage Protection (Auto-Recovery) 

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 6 under “Protections”. 

## Over Temperature Protection (Auto-Recovery) 

## 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 start to 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, the power supply will run into OTP when the operating temperature is beyond what is recommended in the de-rating graph. When activated, the output voltage will go into bouncing mode until the temperature drops to its normal operating temperature as recommended in the derating graph. 

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

15 

**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Power Boost 

Power Boost is the reserve power available constantly that allows reliable startup to support sudden and short spike of loads with high inrush current typically during turn on to remove the need of more expensive higher rated power supply unit. After the output has reached its steady state set value, the power supply can support surge loads with a higher short-term power demand up to 150% of maximum rated load (IO Max), for a maximum duration of 7 seconds. If the power boost lasts longer than maximum duration, the output current will limit to 22A typ. and VO (output voltage) will start to droop, refer to the details in overload & overcurrent protections and the next Power Boost will be available after power boost recovery time defined on Page 4. In order to avoid this, need to maintain the duty cycle & recovery time to ensure that average (R.M.S) output power shall not exceed the continuous maximum, see duty cycle calculation below. 

## **Fig. 7 Duty Cycle Calculation** 

**==> picture [127 x 26] intentionally omitted <==**

> [𝐵𝐵𝐷𝐷 × 𝑇𝑇][𝑃𝑃][) + (𝑁𝑁𝑇𝑇𝑁𝑁-𝑃𝑃𝑐𝑐𝑇𝑇𝑃𝑃 𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴× 𝑇𝑇][𝑁𝑁][)] 𝐴 𝑐𝑐𝐴𝐴𝑇𝑇𝐴𝐴𝑐𝑐 𝑂𝑂𝐷 𝑂𝑂𝐷 𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴 (𝑃𝑃𝐴 𝐴𝐴) =[(𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴 𝐵𝐵𝑇] 𝑇 𝐷𝐷𝑇𝑇𝑐𝑐 𝑇 𝑇𝑇𝑐𝑐 

**==> picture [19 x 8] intentionally omitted <==**

**==> picture [278 x 26] intentionally omitted <==**

 **An example of Power Boost and Average Output Power** 

|**Power Boost**<br>||**Peak Power**<br>**(WP) **<br>|<br>||**Power Boost**<br>**Duration (TP) **<br>||**Duty Cycle**|**Non-Peak**<br>**Power (WN) **<br>||**Non-Peak Power**<br>**Duration (TN) **<br>|<br>||**Total Time**<br>**(T)**<br>||
|---|---|---|---|---|---|---|
|150%<br>||720<br>|<br>||1 sec<br>||10%|187W<br>||9 sec<br>|<br>||10 sec<br>||
|150%|720|5 sec|30%|31W|11.5 sec|16.5 sec|
|125%|600|1 sec|10%|200W|9 sec|10 sec|
|125%<br>~~|~~<br>~~|~~|600<br>~~|~~<br>~~|~~<br>~~|~~|5 sec<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|30%<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|83W<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|11.5 sec<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|16.5 sec<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|



All parameters are specified at 25°C ambient and AC input unless otherwise indicated. 16 | **www.DeltaPSU.com (December 2020, Rev. 03)** 

**TECHNICAL DATASHEET** 

**CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## Advanced Power Boost (APB) 

With multiple loads connected in a system and due to one of fault load a large inrush current is drawn (demanded), this will be detected by APB. This APB can trip the external output protection device with appropriate rating based on system load. Thus preventing the system from shutting down while other connected current paths continue to operate without interruption. 

The following waveforms demonstrate the behavior. 

**==> picture [173 x 153] intentionally omitted <==**

**----- Start of picture text -----**<br>
24V  Output Voltage<br>: ae 20V  : : DC OK Relay Contact  : : :<br>40A<br>0A  Output Current<br>20ms/DIV<br>**----- End of picture text -----**<br>


**Fig. 8.1     APB 200% of nominal output current for 50ms** 

**==> picture [176 x 154] intentionally omitted <==**

**----- Start of picture text -----**<br>
24V  Output Voltage<br>: : i : : : : : ]<br>DC OK Relay<br>Contact<br>100A<br>17V<br>0A  Output Current<br>2ms/DIV<br>**----- End of picture text -----**<br>


**Fig. 8.2     APB 500% of nominal output current for 2ms** 

**==> picture [205 x 156] intentionally omitted <==**

**----- Start of picture text -----**<br>
24V  : * : : : : : ;<br>Output Voltage<br>a |<br>DC OK Relay<br>Contact<br>100A<br>16V<br>po<br>pe 0A  : : Ho : : Output Current  : 7 4<br>iti iiibeittih 5ms/DIV  eeiidiintiiiinbiiiiimiitiinine’<br>**----- End of picture text -----**<br>


**Fig. 8.3     APB 500% of nominal output current for 5ms** 

## External Input Protection Device 

The unit is protected at the L pin, with an internal fuse that cannot be replaced. The power supply 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, please refer a minimum value of 10A B- or 6A C- characteristic breaker. 

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

17 

**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## 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, 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. 

## **Step 3.** 

**The Signal GND in the DRR module is for the built-in LED and DC OK signals. The Output GND terminals from the two PSU’s do not need to be connected to the Signal GND terminal. 

## **Fig. 9 Redundant Operation Connection Diagram** 

Connect the system load to 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. 10  Parallel Operation Connection Diagram** 

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

18 

**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

**Fig. 11     Series Operation Connection Diagram** 

##  **Series Operation** 

Delta's CliQ M can be connected in series to increase the output voltage as shown in figure above. Only power supply from the same product series, and with the same rated output current, can be used. The maximum load current should not exceed the smallest rated output current. Any number of power supplies can be connected in series. User must note that an output voltage > 60Vdc will not meet SELV requirements, and can be dangerous. Under any circumstances, the total voltage shall not exceed 150Vdc. When the total voltage exceeds the SELV limit of 60Vdc, a protective barrier that protects against touching the output terminals must be installed. The output ground (DC Return) terminals of each power supply must also be connected to Earth ground. A diode in reverse bias must be added across output terminals of each power supply. This is to prevent -V voltage being applied to other power supply in fault conditions such as short circuit across load. During the short circuit -V1 & +V1 will be connected across +V2 & -V2 which means the 2 power supply output will be connected in opposite polarity; and may, cause damage to one or both power supplies. With diode connected in reverse bias across the output, the voltage across each power supply output will be restricted to one diode drop – approximately 0.7V to 1.0V. It is recommended to provide sufficient voltage de-rating for diodes with 2 times the voltage rating of series output voltage. Example: When two 24V power supplies are connected in series, the total voltage is 48 volts. Hence, it is recommended to use diodes with reverse voltage rating of 2x48=96 volts. Therefore diodes with reverse voltage rating of 100 volts can be used. 

During the short circuit condition, the current through diodes will be large, hence it is recommended that diodes to be least twice the current rating of the power supply. 

The turn ON would be non-monotonic as the power supply with the fastest startup time and rise time will turn on first. As a result, the combined output voltage waveform of the 2 power supplies connected in series will include a step. 

User must consider to verify parameters such as EMI, inrush current, leakage current, PARD, start up time would differ from datasheet numbers as multiple power supplies in series. 

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

19 

**TECHNICAL DATASHEET** 

**CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

**Fig. 12     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. 13     2 of 3 Phase System Input Operation Connection Diagram** 

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

Delta's CliQ M 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. 03)** 

20 

**TECHNICAL DATASHEET** 

## **CliQ M DIN Rail Power Supply** 24V 480W 1 Phase / DRM-24V480W1PN 

## **Others** 

## Conformal Coating 

## **The Protective Coating Technology** 

Delta Electronics Group has designed the perfect dipping technique which penetrates everywhere including under device, and prevents leakage. The conformal coating dipping can be applied to PCBAs or circuit board. The coating preserves the performance of precision electronic primarily by preventing ionizable contaminants such as salt from reaching circuit nodes, where the material slumps around sharp edges. This can be a problem especially in highly conversing atmosphere. 

## 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. 03)** 

21 



## Links

- [View this product on Novapart](https://novapart.co/products/DRM-24V480W1PN/ac-dc-din-rail-power-supply-psu-ite-laboratory)
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- [Supplier page](https://es.farnell.com/delta-electronics-power/drm-24v480w1pn/power-supply-ac-dc-24v-20a/dp/3649092)
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