DRP048V240W1BN

**TECHNICAL DATASHEET** 

**CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## **Highlights & Features** 

- Universal AC input voltage 

- TNV-1 circuit approval to protection of equipment users from overvoltage on telecommunication networks 

- Up to 92.0% efficiency 

- Power Boost of 150% for 5 seconds 

- Full corrosion resistant aluminium casing 

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

- Extreme low temperature cold start at -40°C 

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

- Hazardous Locations approval to ATEX and Class I, Div 2 

## **Safety Standards** 

CB Certified for worldwide use 

**Model Number:** DRP048V240W1B☐ **Unit Weight:** 0.96 kg (2.12 lb) **Dimensions (L x W x D):** 121 x 85 x 124.1 mm (4.76 x 3.35 x 4.86 inch) 

## **General Description** 

The CliQ II DIN rail power supply series from one of the world’s leading power supply companies, Delta Electronics Group, offers output voltage of 48V. These products are encased in rugged yet lightweight full aluminium body that can withstand shock and vibration according to IEC 60068-2 standard. The series of single phase products can operate over a wide temperature range of -25°C to +80°C. These products also feature universal AC input voltage range from 85Vac to 264Vac and the power will not de-rate throughout the entire range. Another great feature is the conformal coating on the PCBA which allows selected models to be certified to ATEX and Class I, Div 2 for use in hazardous locations. The design conforms to harmonic current emission IEC/EN 61000-3-2, Class A. 

## **Model Information** 

CliQ II DIN Rail Power Supply 

|**ModelNumber**|**Input Voltage Range**|**Rated OutputVoltage**|**Rated Output Current**|
|---|---|---|---|
|DRP048V240W1B☐|85-264Vac (120-375Vdc)|48Vdc|5.00A|



## **Model Numbering** 

|**DR**|**P**|**048V**|**240W**|**1**|**B**|□|
|---|---|---|---|---|---|---|
|DIN Rail|Power Supply|Output Voltage|Output Power|Single Phase|CliQ II Series|A - Metal Case,<br>with Class I, Div 2<br>N - Metal Case,<br>without Class I,Div 2|



All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## **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 Frequency Range||47-63Hz|
|DC Input Voltage Range*||120-375Vdc|
|Input Current||< 2.50A @ 115Vac, < 1.30A @ 230Vac|
|Efficiency at 100% Load||> 90.0%@115Vac, > 92.0%@230Vac|
|Max Power Dissipation|0% load|< 6.5W@115Vac & < 5.5W@230Vac|
||100% load|< 25W @ 115Vac & < 19W @ 230Vac|
|Max Inrush Current(Cold Start)||< 35A@115Vac & 230Vac|
|Power Factor at 100% Load||> 0.96@115Vac, > 0.90@230Vac|
|Leakage Current||< 1mA@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|48Vdc|
|Factory Set Point Tolerance|48Vdc ± 1%|
|Output Voltage Adjustment Range|48-56Vdc|
|Output Current|5.00A (continuously operating at 48V)<br>7.50A (Power Boost for 5 seconds at 48V, refer to the details in<br>the Functions section)|
|Output Power|240W (continuously operating at 48V)<br>360W (Power Boost for 5 seconds at 48V, refer to the details in<br>the Functions section)|
|Line Regulation|< 0.5% (@ 85-264Vac input, 100% load)|
|Load Regulation|< 1.0%(@85-264Vac input, 0-100% load)|
|PARD***(20MHz)|< 200mVpp|
|Rise Time|< 200ms@nominal input(100% load)|
|Start-up Time|< 1,000ms@nominal input(100% load)|
|Hold-up Time|> 20ms@115Vac & 230Vac(100% load)|
|Dynamic Response (Overshoot & Undershoot O/P Voltage)|± 2% @ 85-264Vac input, 10-100% load<br>(Slew Rate: 0.1A/μS, 50% duty cycle @ 5Hz )|
|Start-up with Capacitive Loads|10,000µF Max|



**For power de-rating from 50°C to 80°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. 

**==> picture [101 x 32] intentionally omitted <==**

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## Mechanical 

|Mechanical|||
|---|---|---|
|Case Cover / Chassis||Aluminium|
|Dimensions (L x W x D)||121 x 85 x 124.1 mm (4.76 x 3.35 x 4.86 inch)|
|Unit Weight||0.96 kg (2.12 lb)|
|Indicator||Green LED(DC OK)|
|CoolingSystem||Convection|
|Terminal|Input|3 Pins(Rated 300V/15A)|
||Output|4 Pins(Rated 300V/15A)|
|Wire|Input  / Output|AWG 20-12|
|MountingRail||Standard TS35 DIN Rail in accordance with EN 60715|
|Noise(1 Meter frompower supply)||Sound Pressure Level(SPL)< 40dBA|



## Environment 

|Environment||||
|---|---|---|---|
|SurroundingAir Temperature|Operating|-25°C to +80°C(Cold Start at -40°C)||
||Storage|-40°C to +85°C||
|Power De-rating|Vertical Mounting|> 50°C de-rate power by 2.5% / °C||
||Horizontal Mounting|> 40°C de-rate power by2.5% / °C||
|OperatingHumidity||5 to 95% RH(Non-Condensing)||
|Operating Altitude||0 to 2,500 Meters(8,200 ft.)||
|Shock Test|Non-Operating|IEC 60068-2-27, 30G (300m/S²) for a duration of 18ms,<br>1 time per direction, 2 times in total||
|Vibration|Non-Operating|IEC 60068-2-6, 10Hz to 500Hz @ 30m/S² (3G peak);<br>displacement of 0.35mm; 60 min per axis for all X, Y, Z<br>direction||
|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 /<br>EN 60204-1 (clearance and<br>creepage distances) and IEC<br>62103(safety part)|
|Pollution Degree||2||



## Protections 

|Protections||
|---|---|
|Overvoltage|< 57V, SELV Output, Hiccup Mode,<br>Non-Latching (Auto-Recovery)|
|Overload / Overcurrent|> 150% of rated load current, Hiccup Mode,<br>Non-Latching (Auto-Recovery)|
|Over Temperature|< 80°C Surrounding Air Temperature @ 100% load,<br>Non-Latching (Auto-Recovery)|
|Short Circuit|Hiccup Mode, Non-Latching<br>(Auto-Recovery when the fault is removed)|
|Internal Fuse at L pin|T6.3AH|
|Degree of Protection|IP20|
|Protection Against Shock|Class I with PE* connection|



*PE: Primary Earth 

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All parameters are specified at 25°C ambient and AC input unless otherwise indicated. 3 **www.DeltaPSU.com (December 2018, Rev. 04)** 

**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## Reliability Data 

|MTBF|> 500,000 hrs. as per Telcordia SR-332|
|---|---|
||I/P: 115Vac & 230Vac,  O/P: 100% load, Ta: 25°C|
|Expected CapLife Time|10years(115Vac & 230Vac, 50% load@40°C)|



## 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 Installations||EN 62477-1 / IEC 62103|
|SafetyEntryLow Voltage||PELV*(EN 60204-1), SELV(EN 60950-1)|
|Overvoltage on Telecommunication Networks||TNV-1 circuit|
|Electrical Safety|SIQ Bauart<br>UL/cUL recognized<br>CB Scheme|EN 60950-1<br>UL 60950-1 and CSA C22.2 No. 60950-1 (File No. E191395)<br>IEC 60950-1|
|Industrial Control Equipment|UL/cUL listed<br>CSA|UL 508 and CSA C22.2 No. 107.1-01 (File No. E315355)<br>CSA C22.2 No. 107.1-01 (File No. 181564)|
|Hazardous Location / ATEX<br>(For DRP048V240W1BA)|cCSAus|CSA C22.2 No. 213-M1987, ANSI / ISA 12.12.01 [Class I,<br>Division 2, Group A, B, C, D T4, Ta= -25°C to +80°C (Vertical:<br>> +50°C derating,Horizontal: > +40°C derating)]|
||ATEX|EN 60079-0, EN 60079-15 [      II 3G Ex nA nC IIC T4 Gc,<br>Ta= -25°C to +80°C (Vertical: > +50°C derating,<br>Horizontal: > +40°C derating)]<br>Certificate No.  EPS 12 ATEX 1 491 X<br>®|
|CE||In conformance with EMC Directive 2014/30/EU and<br>Low Voltage Directive 2014/35/EU<br>For DRP048V240W1BA:<br>In conformance with Equipment for explosive atmospheres<br>(ATEX) directive 2014/34/EU|
|Material and Parts||RoHS Directive 2011/65/EU Compliant(EN 50581)|
|Galvanic Isolation|Input to Output|4.0KVac|
||Input to Ground|1.5KVac|
||Output to Ground|1.5KVac|



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

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## EMC 

|EMC|||
|---|---|---|
|Emissions (CE & RE)||CISPR 32, EN 55032, CISPR 11, EN 55011,<br>FCC Title 47: Class B|
|Component Power Supplyfor General Use||EN 61204-3|
|Immunity||EN 55024, EN 61000-6-1, 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, 3V/M, 80% modulation (1KHz)<br>2GHz-2.7GHz,1V/M,80% modulation(1KHz)|
|Electrical Fast Transient / Burst|IEC 61000-4-4|Level 3 Criteria A1)<br>2kV|
|Surge|IEC 61000-4-5|Level 3 Criteria A1)<br>Common Mode2): 2kV<br>Differential Mode3): 1kV|
|Conducted|IEC 61000-4-6|Level 3 Criteria A1)<br>150kHz-80MHz, 10Vrms|
|Power Frequency Magnetic Fields|IEC 61000-4-8|Criteria A1)<br>30A/Meter|
|Voltage Dips and Interruptions|IEC 61000-4-11|100% dip; 1 cycle(20ms); Self Recoverable|
|Low Energy Pulse Test (Ring Wave)|IEC 61000-4-12|Level 3 Criteria A1)<br>Common Mode2): 2kV<br>Differential Mode3): 1kV|
|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) 

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All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## **Block Diagram** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## **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 rail system 

## **Dimensions** 

**L x W x D:** 121 x 85 x 124.1 mm (4.76 x 3.35 x 4.86 inch) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

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

**De-rating for Horizontal Mounting Orientation** > 40°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. 

Output Load De-rating VS Input Voltage 

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

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## **Assembly & Installation** 

The power supply unit (PSU) can be mounted on 35mm 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 

**==> picture [9 x 13] intentionally omitted <==**

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


**Fig. 2.1  Mounting** 

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

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. 2.2  Dismounting** 

To uninstall, pull or slide down the latch with screw driver as shown in Fig. 2.2. 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. 

## Connection 

**CAUTION:** Must tighten wire to housing (Fig. 3.1) before plugging into the terminal block connection (Fig. 3.2). 

In accordance to EN 60950 / UL 50950, 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 75°C for ambient not exceeding 60°C, and 90°C for ambient exceeding 60°C for Canada. 

**==> picture [178 x 9] intentionally omitted <==**

**----- Start of picture text -----**<br>
Fig. 3.1   Fig. 3.2<br>**----- End of picture text -----**<br>


All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## Safety Instructions 

- **Vertical Mounting** 

 **Horizontal 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 50mm (1.97 inch) above and below the device as well as a lateral distance of 20mm (0.79 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! 

- Only plug in and unplug connectors when power is turned off! 

- 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. 

- CAUTION: “For use in a controlled environment”. 

## **For DRP048V240W1BA:** 

- The power supplies unit must be installed in an IP54 enclosure or cabinet in the final installation. The enclosure or cabinet must comply with EN 60079-0 or EN 60079-15. 

- Warning: Explosion Hazard - Substitution of components may impair suitability for Class I, Division 2. 

- Warning: Explosion Hazard - Do not disconnect equipment or adjust potentiometer unless the power has been switched off or the area is known to be non-hazardous. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

10 

**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## **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. 

## 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 remain within ±2% of its steady state value, when subjected to a dynamic load from 10% to 100% of its rated current. 

- **50% duty cycle / 5Hz** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

11 

**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## 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 5 seconds. The Power Boost is also available to repeatedly basis with according to the condition of an average (R.M.S) output power shall not exceed continuous operating condition or refer to duty cycle calculation below. 

𝑇𝑇𝑃𝑃 𝐷 𝐷 𝑐𝑐𝐷𝐷𝑐 𝑐𝑐 (%) = 𝑇 𝐷𝐷𝑇𝑇𝑐𝑐 𝑇 

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

OR 

( 𝐴 x Total Time) — (Power Boost x ) 𝑁𝑁𝑇𝑇𝑁𝑁-𝑃𝑃𝑐𝑐𝑇𝑇𝑃𝑃 𝑃𝑃𝑇𝑇𝑃𝑃𝑐𝑐𝐴𝐴= 

𝑇𝑇𝑁𝑁 

- **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>||360<br>|<br>||5 sec<br>||10%|226W<br>||45 sec<br>|<br>||50 sec<br>||
|150%|360|5 sec|35%|175W|9.3 sec|14.3 sec|
|120%|288|10 sec|20%|228W|40 sec|50 sec|
|120%<br>~~|~~<br>~~|~~|288<br>~~|~~<br>~~|~~<br>~~|~~|10 sec<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|35%<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|214W<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|18.5 sec<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|28.5 sec<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~<br>~~|~~|



It is not recommended to prolong the duration of Power Boost to be longer than the specified duty cycle calculation, this may cause damage to the PSU. 

## 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, please refer a minimum value in instruction sheet with B or C characteristic breaker. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. 12 | **www.DeltaPSU.com (December 2018, Rev. 04)** 

**TECHNICAL DATASHEET** 

**CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## Overload & Overcurrent Protections (Auto-Recovery) 

The power supply’s Overload (OLP) and Overcurrent (OCP) Protections will be activated when output current exceeds its specification as defined on Page 3 under “Protections”. 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 (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 3 under “Protections”. 

## Over Temperature Protection (Auto-Recovery) 

It is not recommended to prolong the duration of IO when it is less than OLP/OCP point, but greater than100%, since it may cause damage to the PSU. 

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. 

## 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. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

13 

**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## Operating Mode 

##  **Redundant Operation** 

In order to ensure proper redundant operation for the power supply unit (PSU), the output voltage difference between the two units must be kept at 0.90~1.00V for 48V 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 the power supply to 50% of rated load at any line voltage from 85264Vac, 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 diagram on the right. 

**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. 4 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. 5 Parallel Operation Connection Diagram** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (December 2018, Rev. 04)** 

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**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

**Fig. 6     Series Operation Connection Diagram** 

##  **Series Operation** 

Delta's CliQ II can be connected in series to increase the output voltage as shown in figure above. Power supply from the same product series only be used and with the same rated output current. 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 output voltage > 60Vdc will not meet SELV requirements and could be hazardous to user the total voltage shall not exceed 150Vdc. Installing a protection against the touching is must and connect the output ground to earth when output voltage is not SELV. 

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 short circuit -V1 & +V1 will come across +V2 & -V2 which means connecting 2 power supplies in opposite polarity and may cause damage to the power supply. With reverse bias diodes in place the voltage across each power supply will be restricted to one diode drop – approximately 0.7V to 1.0V. 

It is recommended to provide sufficient de-rating for diodes hence it is recommended to use 2 times the voltage rating of the output voltage or equal to the rating of series output depending which is higher, e.g. 48V power supply can use 96V rated diode which is equal to two 48V power supplies connected in series OR a 48V power supply adjusted to 56V output will see 56V + 56V = 112V, in this case reverse voltage rating of diode shall be > 112V. 

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 startup waveform with 2 power supplies connected in series would see a step. 

User must consider to verify parameters such as EMI, inrush current, leakage current, PARD, startup 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 2018, Rev. 04)** 

15 

**TECHNICAL DATASHEET** 

## **CliQ II DIN Rail Power Supply** 48V 240W 1 Phase / DRP048V240W1B □ 

## **Others** 

## Delta RoHS Compliant 

## **Restriction of the usage of hazardous substances** 

The European directive 2011/65/EU limits the maximum impurity level of homogeneous materials such as lead, mercury, cadmium, chrome, polybrominated flame retardants PBB and PBDE for the use in electrical and electronic equipment. RoHS is the abbreviation for “Restriction of the use of certain hazardous substances in electrical and electronic equipment”. 

This product conforms to this standard. 

## 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 periodic peak charging of the input capacitor. In industrial environments, compliance with EN 61000-3-2 is only necessary under special conditions. Complying to this standard can have some technical drawbacks, such as lower efficiency; and, can also result in higher product cost. Frequently, the user does not profit from compliance to 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 2018, Rev. 04)** 

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