WLC550-1024

AC/DC Open Frame Power Supply (PSU), ITE, 1 Output, 550W @ 400LFM, 150 W, 90V AC to 264V AC

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
Manufacturer: EOS POWER
Product type: AC / DC Open Frame Power Supplies
SVHC: To Be Advised
Product Range: WLC550 Series
No. of Outputs: 1 Output
Input Voltage VAC: 90V AC to 264V AC
Power Supply Output Type: Adjustable, Fixed
Output Current - Output 1: 6.25A
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
Power Rating (Forced Cooling): 550W @ 400LFM
Power Rating (Convection Cooling): 150W
Delivery and price
Units per pack	10
Price	136.93 €
Current stock	10+
Lead time	30 days
Datasheet
**WLC550 Industrial** 

## Features 

- l 5 x 3 x 1.5 Inches Form factor 

- l Up to 550 Watts with Forced Air Cooled 

- l Efficiencies up to 92% 

- l -40 to 70 degree operating temperature* 

- l Remote ON/OFF **[New]** 

- Now IEC/EN/UL62368-1 Compliant **[New]** 

- ~~l Shall be approved to EN60950-1 2nd Edition~~ 

- ~~l 12V / 0.5A Fan Output~~ 

- ~~l Thermal Shut-Down feature~~ 

- l ~~MTBF : > 3M hours as per Telcordia SR-332, issue 3~~ 

- l ~~Approved with metal enclosures/accessories~~ 

## Electrical Specifications 

||Input Voltage<br>90-264 VAC/390 VDC, Universal  (Derate from 100% at 115VAC to 78% at 90VAC)|Input Voltage<br>90-264 VAC/390 VDC, Universal  (Derate from 100% at 115VAC to 78% at 90VAC)|
|---|---|---|
||Input Frequency<br>47-63 Hz||
||Input Current<br>115 VAC: 6.0 A max.<br>230 VAC: 3.0 A max.||
||No Load Power<br>< 0.5W @ 115VAC<br>< 0.7W @ 230VAC||
||Inrush Current<br>115 VAC – 25 A, 230 VAC – 45 A, 264 VAC – 75 A||
||Leakage Current<br><200uA @115VAC and <400uA @230VAC||
||Efficiency<br>92%(48V), 91%(24V), 90%(12V,15V) typical@ 230VAC full load||
||Hold-upTime<br>Full Load > 16 ms typical       Convection Load > 55 ms typical     Conduction Load  > 30ms typical||
||Power Factor<br>exceeds 0.95 with Full Load||
||Output Power<br>up to 550W (Forced Air Cooled)||
||up to 250W (Conduction Cooled)||
||up to 150W (Convection Cooled)||
||Output Voltage Adjustability+/-3%||
||Line Regulation<br>+/-0.5%||
||Load Regulation<br>+/-1%||
||Transient Response<br>50-100% step load change, at 0.1A/uS slew rate, 50% duty cycle, 50Hz=5% ,<br>recovery time < 5 ms||
||Rise Time<br>55 ms typical||
||Set Point Tolerance<br>+/~~-~~1%||
||Over Current Protection<br>>110% ,Hiccup mode / Auto Recovery||
||Over Voltage Protection<br>110 to 140% , Hiccup mode / Auto Recovery||
||Short Circuit Protection<br>Hiccup mode / Auto Recovery||
||Switching Frequency<br>PFC – 70 to 130 KHz  ,Resonant – 68 to 80 KHz||
||Operating Temperature<br>~~-~~40 to+70°C, *~~-~~40 to 0°C startup is guaranteed with spec deviation (ref note 6)||
||Storage Temperature<br>~~-~~40 to+85°C||
||Relative Humidity<br>5% to 95%, noncondensing||
||Altitude<br>Operating: 16,000 ft.; Nonoperating: 40,000 ft.||



**54** 

4EM-20-348                                                                                              1                                                        39-DE60-48750-002 / A4 

|Model Number|Voltage|Max. Load<br>(Convection)|Max. Load7<br>(Conduction)|Max. Load<br>(400 LFM)|Min. Load|Ripple1|
|---|---|---|---|---|---|---|
|WLC550-1012|12V|9.17A|16.67A|41.67A|0.0A|2%|
|WLC550~~-~~1015|15V|7.33A|13.33A|33.33A|0.0A|2%|
|WLC550-1024|24V|6.25A|10.42A|22.92A|0.0A|1%|
|WLC550-1030|30V|5.00A|8.33A|18.33A|0.0A|1%|
|WLC550-1048|48V|3.13A|5.21A|11.46A|0.0A|1%|
|WLC550-1058|58V|2.59A|4.31A|9.48A|0.0A|1%|



Add Suffix ‘O’ for Remote On/Off option (example: LFWLC550-1030-O) 

For Power supply unit with L bracket (metal accessory option) add “-L” suffix at the end of model number For Power supply unit with U channel (metal accessory option) add “-U” suffix at the end of model number For Power supply unit with CK Cover kit (metal accessory option)  add “-CK” suffix at the end of model number For Power supply unit with CK Cover kit with FAN  (metal accessory option)  add “-CKF” suffix at the end of model number 

**55** Innovations in Power ~~4EM-20-348                                                                                              2                                                              39-DE60-48750-002 / A4~~ 

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**==> picture [265 x 227] intentionally omitted <==**

**----- Start of picture text -----**<br>
                                  Pin Connections<br>J1    Pin 1           AC LINE<br>  Pin 2           NOT FITTED<br>  Pin 3           AC NEUTRAL<br>J2    Pin 1           V1 +VE<br>  Pin 2           V1 -VE<br>J3    Pin 1           FAN +VE<br>  Pin 2           FAN -VE<br>J21 (Remote On/Off)              Pin 1           +VE(External)<br>                                                Pin 2           -VE (External)<br>**----- End of picture text -----**<br>


## ~~Notes~~ 

~~1. Ripple is peak to peak with 20 MHz bandwidth and 10 µF (Electrolytic capacitor) in parallel with a 0.1 µF capacitor at rated lin~~ e voltage and load ranges. 

2. Combined output power of main output, fan supply shall not exceed max. Power rating. 

~~3. Fan supply output voltage tolerance including set point accuracy, line and load regulation is +/-10% and Ripple and noise is less than~~ 10%. 

~~4. Specifcations are for nominal input voltage, 25°C unless otherwise stated.~~ 

5. Thermal shutdown feature : The power supply goes in hiccup mode when the temperature of Substrate PCB exceeds 110 °C (+/-10 °C). 

6. Output ripple can be more than 10% of the output voltage. 

~~7. Refer Recommended Conduction Plate & Clearance on Page No. 6 .~~ 

~~4EM-20-348                                                                                              3                                                              39-DE60-48750-002 /~~ A4 

**==> picture [54 x 53] intentionally omitted <==**

## Mechanical Specifications 

|AC Input Connector (J1)<br>JST : B3P-VH-B(LF)(SN) or equivalent<br>Mating: VHR-3M or equivalent  Pins : SVH-41T-P1.1 or equivalent<br>Earth (J4)<br>Molex: 19705-4301<br>Mating: 19003-0001<br>DC Output Connector (J2)<br>6-32 inches Screw Pan HD<br>(Screw Terminal)<br>Mating: Designed to accept Ring Tongue Terminal AMP : 8-31886-1,<br>wherein one 16 AWG(max) wire can be crimped.<br>Note : One Ring Tongue Terminal with 16 AWG is recommended for current up to 11A only.<br>Use multiple tongue terminals with wire for more current<br>Aux (Fan) Output (J3)<br>AMP :640456-2<br>Remote On/Off (J21)                                     Mating: 640440-2<br>Dimensions<br>5 x 3 x 1.5  inches<br>(127 x 76.2x 38.1 mm)<br>Weight<br>500 gm approx<br>CE Mark<br>Complies with LVD Directive<br>Approval Agency<br>Nemko, UL, C-UL<br>Safety Standard(s)<br>IEC 62368-1:2018, IEC 60950-1(ed.2);am1;am2<br>EN 62368-1:2014;A11, EN 60950-1:2006;A11;A1;A12;A2<br>UL 62368-1 & CAN/CSA C22.2 No. 62368-1:19,UL 60950-1 and CAN/CSA C22.2 No. 60950-1-07<br>Safety File Number(s)                                     CB Test Certifcate No : NO112396<br>Nemko Certifcate No :  P20224603<br>UL Certifcate No :  E515384-A6003-UL<br>Mechanical Specifications<br>EMC<br>Safety<br> Parameter<br>Conducted Emissions<br>Radiated Emissions<br>Input Current Harmonics<br>Voltage Fluctuation and Flicker<br>ESD Immunity<br>Radiated Field Immunity<br>Electrical Fast Transient Immunity<br>Surge Immunity<br>Conducted Immunity<br>Magnetic Field Immunity<br>Voltage dips, interruptions<br> Conditions/Description<br>EN55032-B, CISPR22-B,FCCPART15-B<br>EN 55032 A<br>EN 61000-3-2<br>EN 61000-3-3<br>EN 61000-4-2<br>EN 61000-4-3<br>EN 61000-4-4<br>EN 61000-4-5<br>EN 61000-4-6<br>EN 61000-4-8<br>EN 61000-4-11<br> Criteria<br>Pass<br>Pass<br>Level B with external core (King core K5B RC<br>25x12x15-M in input cable)<br>Class D<br>Pass<br>Level 3, Criterion A<br>Level 3,Criterion A<br>Level 3, Criterion A<br>Level 3, Criterion A<br>Level 3,  Criterion A<br>Level 3, Criterion A<br>Criterion  A & B|AC Input Connector (J1)<br>JST : B3P-VH-B(LF)(SN) or equivalent<br>Mating: VHR-3M or equivalent  Pins : SVH-41T-P1.1 or equivalent<br>Earth (J4)<br>Molex: 19705-4301<br>Mating: 19003-0001<br>DC Output Connector (J2)<br>6-32 inches Screw Pan HD<br>(Screw Terminal)<br>Mating: Designed to accept Ring Tongue Terminal AMP : 8-31886-1,<br>wherein one 16 AWG(max) wire can be crimped.<br>Note : One Ring Tongue Terminal with 16 AWG is recommended for current up to 11A only.<br>Use multiple tongue terminals with wire for more current<br>Aux (Fan) Output (J3)<br>AMP :640456-2<br>Remote On/Off (J21)                                     Mating: 640440-2<br>Dimensions<br>5 x 3 x 1.5  inches<br>(127 x 76.2x 38.1 mm)<br>Weight<br>500 gm approx<br>CE Mark<br>Complies with LVD Directive<br>Approval Agency<br>Nemko, UL, C-UL<br>Safety Standard(s)<br>IEC 62368-1:2018, IEC 60950-1(ed.2);am1;am2<br>EN 62368-1:2014;A11, EN 60950-1:2006;A11;A1;A12;A2<br>UL 62368-1 & CAN/CSA C22.2 No. 62368-1:19,UL 60950-1 and CAN/CSA C22.2 No. 60950-1-07<br>Safety File Number(s)                                     CB Test Certifcate No : NO112396<br>Nemko Certifcate No :  P20224603<br>UL Certifcate No :  E515384-A6003-UL<br>Mechanical Specifications<br>EMC<br>Safety<br> Parameter<br>Conducted Emissions<br>Radiated Emissions<br>Input Current Harmonics<br>Voltage Fluctuation and Flicker<br>ESD Immunity<br>Radiated Field Immunity<br>Electrical Fast Transient Immunity<br>Surge Immunity<br>Conducted Immunity<br>Magnetic Field Immunity<br>Voltage dips, interruptions<br> Conditions/Description<br>EN55032-B, CISPR22-B,FCCPART15-B<br>EN 55032 A<br>EN 61000-3-2<br>EN 61000-3-3<br>EN 61000-4-2<br>EN 61000-4-3<br>EN 61000-4-4<br>EN 61000-4-5<br>EN 61000-4-6<br>EN 61000-4-8<br>EN 61000-4-11<br> Criteria<br>Pass<br>Pass<br>Level B with external core (King core K5B RC<br>25x12x15-M in input cable)<br>Class D<br>Pass<br>Level 3, Criterion A<br>Level 3,Criterion A<br>Level 3, Criterion A<br>Level 3, Criterion A<br>Level 3,  Criterion A<br>Level 3, Criterion A<br>Criterion  A & B|AC Input Connector (J1)<br>JST : B3P-VH-B(LF)(SN) or equivalent<br>Mating: VHR-3M or equivalent  Pins : SVH-41T-P1.1 or equivalent<br>Earth (J4)<br>Molex: 19705-4301<br>Mating: 19003-0001<br>DC Output Connector (J2)<br>6-32 inches Screw Pan HD<br>(Screw Terminal)<br>Mating: Designed to accept Ring Tongue Terminal AMP : 8-31886-1,<br>wherein one 16 AWG(max) wire can be crimped.<br>Note : One Ring Tongue Terminal with 16 AWG is recommended for current up to 11A only.<br>Use multiple tongue terminals with wire for more current<br>Aux (Fan) Output (J3)<br>AMP :640456-2<br>Remote On/Off (J21)                                     Mating: 640440-2<br>Dimensions<br>5 x 3 x 1.5  inches<br>(127 x 76.2x 38.1 mm)<br>Weight<br>500 gm approx<br>CE Mark<br>Complies with LVD Directive<br>Approval Agency<br>Nemko, UL, C-UL<br>Safety Standard(s)<br>IEC 62368-1:2018, IEC 60950-1(ed.2);am1;am2<br>EN 62368-1:2014;A11, EN 60950-1:2006;A11;A1;A12;A2<br>UL 62368-1 & CAN/CSA C22.2 No. 62368-1:19,UL 60950-1 and CAN/CSA C22.2 No. 60950-1-07<br>Safety File Number(s)                                     CB Test Certifcate No : NO112396<br>Nemko Certifcate No :  P20224603<br>UL Certifcate No :  E515384-A6003-UL<br>Mechanical Specifications<br>EMC<br>Safety<br> Parameter<br>Conducted Emissions<br>Radiated Emissions<br>Input Current Harmonics<br>Voltage Fluctuation and Flicker<br>ESD Immunity<br>Radiated Field Immunity<br>Electrical Fast Transient Immunity<br>Surge Immunity<br>Conducted Immunity<br>Magnetic Field Immunity<br>Voltage dips, interruptions<br> Conditions/Description<br>EN55032-B, CISPR22-B,FCCPART15-B<br>EN 55032 A<br>EN 61000-3-2<br>EN 61000-3-3<br>EN 61000-4-2<br>EN 61000-4-3<br>EN 61000-4-4<br>EN 61000-4-5<br>EN 61000-4-6<br>EN 61000-4-8<br>EN 61000-4-11<br> Criteria<br>Pass<br>Pass<br>Level B with external core (King core K5B RC<br>25x12x15-M in input cable)<br>Class D<br>Pass<br>Level 3, Criterion A<br>Level 3,Criterion A<br>Level 3, Criterion A<br>Level 3, Criterion A<br>Level 3,  Criterion A<br>Level 3, Criterion A<br>Criterion  A & B|
|---|---|---|
||AC Input Connector (J1)<br>JST : B3P-VH-B(LF)(SN) or equivalent||
||Mating: VHR-3M or equivalent  Pins : SVH-41T-P1.1 or equivalent||
||Earth (J4)<br>Molex: 19705-4301||
||Mating: 19003-0001||
||DC Output Connector (J2)<br>6-32 inches Screw Pan HD||
||(Screw Terminal)<br>Mating: Designed to accept Ring Tongue Terminal AMP : 8-31886-1,||
||wherein one 16 AWG(max) wire can be crimped.||
||Note : One Ring Tongue Terminal with 16 AWG is recommended for current up to 11A only.||
||Use multiple tongue terminals with wire for more current||
||Aux (Fan) Output (J3)<br>AMP :640456-2||
||||
||Remote On/Off (J21)                                     Mating: 640440-2||
||Dimensions<br>5 x 3 x 1.5  inches||
||(127 x 76.2x 38.1 mm)||
||Weight<br>500 gm approx||
||EMC||
||Parameter<br> Conditions/Description<br> Criteria||
||Conducted Emissions<br>EN55032-B, CISPR22-B,FCCPART15-B<br>Pass||
||Radiated Emissions<br>EN 55032 A<br>Pass||
||Level B with external core (King core K5B RC||
||25x12x15-M in input cable)||
||Input Current Harmonics<br>EN 61000-3-2<br>Class D||
||Voltage Fluctuation and Flicker<br>EN 61000-3-3<br>Pass||
||ESD Immunity<br>EN 61000-4-2<br>Level 3, Criterion A||
||Radiated Field Immunity<br>EN 61000-4-3<br>Level 3,Criterion A||
||Electrical Fast Transient Immunity<br>EN 61000-4-4<br>Level 3, Criterion A||
||Surge Immunity<br>EN 61000-4-5<br>Level 3, Criterion A||
||Conducted Immunity<br>EN 61000-4-6<br>Level 3,  Criterion A||
||Magnetic Field Immunity<br>EN 61000-4-8<br>Level 3, Criterion A||
||Voltage dips, interruptions<br>EN 61000-4-11<br>Criterion  A & B||
||Safety||
||CE Mark<br>Complies with LVD Directive||
||Approval Agency<br>Nemko, UL, C-UL||
||Safety Standard(s)<br>IEC 62368-1:2018 IEC 60950-1(ed2);am1;am2||
||<br>,  .||
||EN 62368-1:2014;A11 EN 60950-1:2006;A11;A1;A12;A2||
||,<br>UL 62368-1 & CAN/CSA C22.2 No. 62368-1:19,UL 60950-1 and CAN/CSA C22.2 No. 60950-1-07||
||Safety File Number(s)                                     CB Test Certifcate No : NO112396||
||||
||Nemko Certifcate No :  P20224603<br>UL Certifcate No :  E515384-A6003-UL||
||||



~~4EM-20-348                                                                                              4                                                                     39-DE60-48750-002 / A4~~ 

## Derating Curve 

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**----- Start of picture text -----**<br>
De-rate linearly from 100% at 115VAC to<br>78% at 90VAC<br>**----- End of picture text -----**<br>


**==> picture [149 x 94] intentionally omitted <==**

**----- Start of picture text -----**<br>
Convection load: 110W up to 50 °C<br>De-rate above 50 °C @ 2.5% per °C<br>Conduction load: 200W up to 50 °C<br>De-rate above 50 °C @ 2.5% per °C<br>Forced air cooled load : 500W up to 50°C<br>De-rate above 50 °C @ 2.5% per °C<br>**----- End of picture text -----**<br>


Convection load: 150W up to 50 °C De-rate above 50 °C @ 2.5% per °C Conduction load: 250W up to 50 °C De-rate above 50 °C @ 2.5% per °C Forced air cooled load : 550W up to 50°C De-rate above 50 °C @ 2.5% per °C 

Innovations in Power 4EM-20-348                                                                                              5                                                                39-DE60-48750-002 / A4 

## Maximum Operating Temperature 

For reliable and safe operation, please make sure the maximum component temperatures given in table  below is not exceeded. 

~~TOP PCB BOTTOM PCB~~ 

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**----- Start of picture text -----**<br>
Ident no             Description              Max Temp Allowed<br>                     (°C)<br>1                         Common mode chokes                      95<br>2                         Input Bulk Capacitors                      90<br>3                         Differential choke                     110<br>4                         Boost Choke                     110<br>5                         Output Transformer           125 (for 12V & 15V)<br>   110 (for 24V,30V,48V,58V)<br>6                         Output Capacitor                      90<br>7                         Bridge Rectifier                      120<br>8                         Aluminium Clad PCB                      105<br>9                         Output Rectifiers                      110<br>**----- End of picture text -----**<br>


~~4EM-20-348                                                                                              6                                                                  39-DE60-48750-0~~ 02 / A4 

## Recommended Conduction Plate & Clearance 

Conduction power rating mentioned in the table is with additional aluminium base plate of 3 mm thickness with 177.8mm(7in) length & 101.6mm(4in) width. 

Clearance of minimum 15mm above the component height is recommended for better thermal management. 

Innovations in Power 4EM-20-348                                                                                              7                                                                 39-DE60-48750-002 / A4 

## Mounting Option 

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


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f<br>7 ; O<br>d e<br>**----- End of picture text -----**<br>


## FIXING OPTION - 1 

## FIXING OPTION - 2 

4EM-20-348                                                                                              8                                                              39-DE60-48750-002 / A4 

## Mechanical Drawing 

## Mechanical Drawing 

WLC550 SERIES WITH REMOTE ON/OFF 

Innovations in Power 4EM-20-348                                                                                              9                                                              39-DE60-48750-002 / A4 

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


4EM-20-348                                                                                              10                                                                   39-DE60-48750-002 / A4 

## Mechanical Drawing 

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64<br>Innovations in Power<br>          4EM-20-348                                                                                              11                                                             39-DE60-48750-002 / A4<br>**----- End of picture text -----**<br>


## Mechanical Drawing 

4EM-20-348                                                                                              13                                                              39-DE60-48750-002 / A4 

## Mechanical Drawing 

**66** Innovations in Power 4EM-20-348                                                                                              14                                                              39-DE60-48750-002 / A4
Updated at April 22, 2026
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