PMR-4V320WDBA

**TECHNICAL DATASHEET** 

**PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **PMR** 

## **Highlights & Features** 

- Universal AC input voltage range 

- Full corrosion resistant aluminium casing 

- Built-in active PFC and conforms to harmonic current IEC/EN 61000-3-2, Class A and Class D 

- Low profile design for 1U installation 

- High reliability with fanless design 

- Built-in DC OK relay contact and redundancy operation (PMR-4V320WDBA and PMR-4V320WDCA) 

## **Safety Standards** 

CB Certified for worldwide use 

**Model Number:** PMR-4V320WD☐A **Unit Weight:** 0.86 kg (1.90 lb) **Dimensions (L x W x D):** 215 x 115 x 30 mm (8.46 x 4.53 x 1.18 inch) 

## **General Description** 

The PMR-4V320WD☐A offers nominal output voltage of 4.2V with a wide operating temperature range from -20°C to +70°C and can withstand shock and vibration according to IEC 60068-2. The product comes with universal AC input voltage range at 88Vac to 264Vac. At only 30mm height and encased in a full corrosion resistant aluminium casing, the PMR series is made for installation in narrow space while its built-in active PFC circuit provides high power factor values and conforms to harmonic current emission according to IEC/EN 61000-3-2, Class A and Class D. 

## **Model Information** 

PMR Panel Mount Power Supply 

|**Model Numbering**|**Model Numbering**|**Model Numbering**|**Model Numbering**|**Model Numbering**|**Model Numbering**||
|---|---|---|---|---|---|---|
|||||||**CC Code**|
|**PM**|**R –**|**4V**|**320W**|**D**|□|**A**|
|Panel Mount|Product Series<br>R – Standard Rack<br>Type Series (1U)|Output Voltage|Output Power<br>(320W series<br>model)|Package Type<br>D – Enclosed<br>without Fan|Connector Type<br>A – Terminal Block<br>B – Terminal Block<br>(Parallel Connection)*<br>G – Front Face*<br>C – Front Face<br> (Parallel Connection)*|*<br>Variable<br>A – Coating|



## **Model Numbering** 

*Options 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **Specifications** 

Input Ratings / Characteristics 

|**Specifications**<br>Input Ratings / Characteristics|**Specifications**<br>Input Ratings / Characteristics||
|---|---|---|
|Nominal Input Voltage||100-240Vac|
|Input Voltage Range||88-264Vac|
|Nominal Input Frequency||50-60Hz|
|Input FrequencyRange||47-63Hz|
|Input Current||< 4.50A@115Vac, < 2.50A@230Vac|
|Efficiency at 100% Load|PMR-4V320WDAA|84.5% typ. @ 115Vac, 86.5% typ. @ 230Vac|
||PMR-4V320WDGA||
||PMR-4V320WDBA|84.0% typ. @ 115Vac, 86.0% typ. @ 230Vac|
||PMR-4V320WDCA||
|Max Inrush Current(Cold Start)||< 20A@115Vac, < 40A@230Vac|
|Power Factor at 100% Load||0.98 typ.@115Vac, 0.95 typ.@230Vac|
|Leakage Current||< 1mA@240Vac|



Output Ratings / Characteristics** 

|Output Ratings / Characteristics**|Output Ratings / Characteristics**||
|---|---|---|
|Nominal Output Voltage||4.2Vdc|
|Factory Set Point Tolerance||4.2Vdc ± 1% (initial set point tolerance from factory)<br>For PMR-4V320WDAA and PMR-4V320WDGA|
|Output Voltage Adjustment Range|PMR-4V320WDAA|3.78-4.62Vdc|
||PMR-4V320WDGA||
|Output Voltage Range|PMR-4V320WDBA|3.99-4.51Vdc (No potentiometer)|
||PMR-4V320WDCA||
|Output Current||60.0A(252W max.)|
|Output Power||252W|
|Line Regulation||± 0.5% typ. (@ 115Vac & 230Vac, 100% load)|
|Load Regulation||± 1.0% typ. (@ 115Vac & 230Vac, 0-100% load)<br>For PMR-4V320WDAA and PMR-4V320WDGA|
|PARD*** (20MHz)||< 150mVpp @ 25°C<br>< 300mVpp @-20°C|
|Rise Time||100ms typ.@115Vac & 230Vac(100% load)|
|Start-up Time||3000ms typ. @ 115Vac,<br>1500ms typ. @ 230Vac (100% load)|
|Hold-up Time||8ms typ.@115Vac & 230Vac(100% load)|
|Dynamic Response (Overshoot & Undershoot O/P Voltage)||± 1500mVpp @ 10-50% load and 50-100% load|
|Start-up with Capacitive Loads||8,000µF Max|
|Functional*|Parallel Connection|•<br>For N+1 connection, note that N ≤ 4 (difference of coupling<br>impedance for each power supply must be < 5mΩ in<br>redundancy connection).<br>•<br>The total outputpower shall be < N × 80% × ratedpower.|
||DC OK Relay Contact|5V / 0.1A<br>The relay is usually open when the output is normal.|



*For PMR-4V320WDBA and PMR-4V320WDCA. 

**For power de-rating from 40°C to 70°C, see power de-rating on page 3. 

***PARD is measured with an AC coupling mode and in parallel to end terminal with 0.1μF ceramic capacitor & 47μF electrolytic capacitor. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## Mechanical 

|Mechanical|Mechanical||
|---|---|---|
|Case Chassis / Cover||Aluminium|
|Dimensions (L x W x D)||215 x 115 x 30 mm (8.46 x 4.53 x 1.18 inch)|
|Unit Weight||0.86 kg (1.90 lb)|
|Indicator||Green LED(DC OK)|
|CoolingSystem||Convection|
|Terminal|PMR-4V320WDAA|M3.5 x 9 Pins(Rated 300V/15A)|
||PMR-4V320WDGA|M3.5 x 9 Pins(Rated 300V/20A)|
||PMR-4V320WDBA|M3.5 x 9 Pins(Rated 300V/15A)|
||PMR-4V320WDCA|M3.5 x 9 Pins(Rated 300V/20A)|
|Wire||AWG 14-12*|
|Noise(1 Meter frompower supply)||Sound Pressure Level(SPL)< 25dBA|



*Only use wire that can withstand operating temperature of more than 125°C. 

## Environment 

|Environment|||
|---|---|---|
|Surrounding Air Temperature|Operating|-20°C to +70°C(Cold start at -40°C)|
||Storage|-40°C to +85°C|
|Power De-rating||> 40°C de-rate power by 1% / °C,<br>> 50°C de-rate power by 1.5% / °C<br><110Vac de-rate power by 1% / 1V|
|OperatingHumidity||5 to 95% RH(Non-Condensing)|
|OperatingAltitude||0 to 5,000 Meters(16,400 ft)|
|Shock Test|Non-Operating|IEC 60068-2-27, Half Sine: 50G for a duration of 11ms,<br>3 shocks for each 3 directions|
|Vibration|Non-Operating|IEC 60068-2-6, Random: 5Hz to 500Hz (2.09Grms);<br>20 min per axis for all X, Y, Z direction|
|Over Voltage Category||II|
|Pollution Degree||2|



## Protections 

|Protections||
|---|---|
|Overvoltage|5.00-6.00V, Hiccup Mode, Non-Latching<br>(Auto-Recovery)|
|Overload / Overcurrent|105-150%, Hiccup Mode, Non-Latching<br>(Auto-Recovery)|
|Over Temperature|Hiccup Mode, Non-Latching (Auto-Recovery)|
|Short Circuit|Hiccup Mode, Non-Latching (Auto-Recovery)|
|Internal Fuse at L pin|T6.3AH|
|Protection Against Shock|Class I with PE** connection|



**PE: Primary Earth 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## Reliability Data 

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



## Safety Standards / Directives 

|Safety Standards / Directives|Safety Standards / Directives||
|---|---|---|
|SafetyEntryLow Voltage||SELV(EN 60950-1)|
|Electrical Safety|TUV Bauart<br>UL/cUL recognized<br>CB scheme<br>CCC|EN 60950-1<br>UL/cUL recognized to UL 60950-1 and CSA C22.2 No.<br>60950-1 (File No. E131881)<br>IEC 60950-1<br>CCC to GB 4943|
|CE||In conformance with EMC Directive 2014/30/EU and Low<br>Voltage Directive 2014/35/EC|
|Material and Parts||RoHS Directive 2011/65/EU Compliant|
|Galvanic Isolation|Input to Output|3.0KVac|
||Input to Ground|2.0KVac|
||Output to Ground|0.5KVac|



## EMC 

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



1) Criteria A: Normal performance within the specification limits 

2) Asymmetrical: Common mode (Line to earth) 

3) Symmetrical: Differential mode (Line to line) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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## **TECHNICAL DATASHEET PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **Block Diagram** 

## **Device Descriptions** 

**PMR-4V320WDAA, PMR-4V320WDBA:** Terminal Block 

**PMR-4V320WDGA, PMR-4V320WDCA:** Front Face 

- 1) Input & Output terminal block connector 

- 2) DC voltage adjustment potentiometer (Option) 

- 3) DC OK control LED (Green) 

- 4) DC OK relay contact (Option) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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## **TECHNICAL DATASHEET PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **Dimensions** 

PMR-4V320WDAA, PMR-4V320WDBA: Terminal Block **L x W x D:** 215 x 115 x 30 mm (8.46 x 4.53 x 1.18 inch) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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## **TECHNICAL DATASHEET PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

PMR-4V320WDGA, PMR-4V320WDCA: Front Face **L x W x D:** 215 x 115 x 30 mm (8.46 x 4.53 x 1.18 inch) 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **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, the device will run into Over Temperature Protection. When activated, the output voltage will go into bouncing mode and will recover when the surrounding air temperature is lowered or the load is reduced as far as necessary to keep the device in working condition. 

**Fig. 1 De-rating for Vertical and Horizontal Mounting Orientation** > 40°C de-rate power by 1% / °C, 

- 50°C de-rate power by 1.5% / °C 

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

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

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

Output Load De-rating VS. Input Voltage 

- No output power de-rating for the input voltage from 110Vac to 264Vac 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **Assembly & Installation** 

- Ⓐ    Side Mounting: Fig. 2 and Fig. 3 show the mounting hole locations for power supply assembly onto a metal mounting surface. The power supply shall be mounted on minimum of 2 mounting holes using M4 screw of maximum 5mm (0.20 inch) length (Refer to Fig. 4). This is to maintain a safety distance between the screw and internal components. 

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

- Ⓒ    Connector 

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

## **Base Mounting (Horizontal) Base Mounting (Vertical)** 

**Fig. 2 Recommended Mounting Orientations** 

- Use flexible cable (stranded or solid) of AWG No. 14-12. The input/output connectors’ allowable current is 23A max per pin. User should calculate and select the suitable wire specification (type/quantity/diameter) according to actual output current. The torque at the connector shall not exceed 13Kgf.cm. The insulation stripping length should not exceed 0.275” or 7mm. 

- Recommended mounting torque of the product and its mounting accessories is 9~12Kgf.cm. 

**Fig. 3 Mounting Hole Locations** 

- Only use M4 screw ≤ 5mm (0.20 inch) through the base mounting holes at Ⓐ _._ This is to keep a safe distance between the screw and internal components. 

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

**Fig. 4 Assembly Reference** 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## Safety Instructions 

- If user’s mounting orientation is not according to the recommended mounting orientations, please consult Delta for further information. 

- To ensure sufficient convection cooling, always maintain a distance of ≥ 20mm (0.78 inch) from ventilated surfaces while the device is in operation. 

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

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

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

- Prevent any foreign metal, particles or conductors from entering the device through the openings during installation. It may cause electric shock, safety hazard, fire, and/or product failure. 

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

## **Accessories** 

## LM-01: Top Fixing Bracket 

This bracket is used to fix the power supply onto a flat surface from the top. 

**==> picture [46 x 27] intentionally omitted <==**

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


All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **Functions** 

## Start-up Time 

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

## Rise Time 

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

## Hold-up Time 

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

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

## Inrush Current 

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

## Dynamic Response 

The power supply output voltage will remain within ±1500mVpp of its steady state value, when subjected to a dynamic load from 10 to 50% and 50 to 100% of its rated current. 

All parameters are specified at 25°C ambient and AC input unless otherwise indicated. **www.DeltaPSU.com (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## Overload & Overcurrent Protections (Auto-Recovery) 

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

## Overvoltage Protection (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 <105% but >100%, since it may cause damage to the PSU. 

## Short Circuit Protection (Auto-Recovery) 

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. 

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 (November 2018, Rev. 01)** 

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**TECHNICAL DATASHEET** 

## **PMR Panel Mount Power Supply** 4.2V 252W 1 Phase / PMR-4V320WD □ A 

## **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 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 (November 2018, Rev. 01)** 

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