LRS-50-12

AC/DC Enclosed Power Supply (PSU), ITE & Household, 1 Outputs, 50.4 W, 12 VDC, 4.2 A

⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
Manufacturer: MEAN WELL
Product type: AC / DC Enclosed Power Supplies
No. of Outputs:1Outputs; Output Power Max:50.4W; Output Voltage - Output 1:12V; Output Current - Output 1:4.2A; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Voltage - O
SVHC: No SVHC (25-Jun-2025)
Product Range: LRS-50 Series
No. of Outputs: 1Outputs
Output Power Max: 50.4W
Input Voltage VAC: 85V AC to 264V AC
Input Voltage AC Max: 264V
Input Voltage AC Min: 85V
Power Supply Output Type: Adjustable, Fixed
Output Current - Output 1: 4.2A
Output Current - Output 2: -
Output Current - Output 3: -
Output Current - Output 4: -
Output Voltage - Output 1: 12VDC
Output Voltage - Output 2: -
Output Voltage - Output 3: -
Output Voltage - Output 4: -
Power Supply Applications: ITE & Household
Delivery and price
Units per pack	250
Price	11.61 €
Current stock	200+
Lead time	30 days
Datasheet
**LRS - 50  series** 

50W Single Output Switching Power Supply 

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   

_File Name:LRS-50-SPEC   2019-07-23_ 

50W Single Output Switching Power Supply 

## **LRS - 50  series** 

## **SPECIFICATION** 

|**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**RATED POWER**<br>**OUTPUT**<br>**VOLTAGE ADJ. RANGE**<br>**LINE REGULATION Note.4**<br>**LOAD REGULATIONNote.5**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE RANGE**<br>**FREQUENCY RANGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**LEAKAGE CURRENT**<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**WORKING TEMP.**<br>**WORKING HUMIDITY**<br>**STORAGE TEMP., HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**MTBF**<br>**DIMENSION**<br>**OTHERS**<br>****<br>**PACKING**<br>**OVER LOAD**<br>**OVER VOLTAGE**<br>**AC CURRENT (Typ.)**<br>1000ms, 30ms/230VAC         2000ms,30ms/115VAC  at full load<br>30ms/230VAC      12ms/115VAC at full load<br>85 ~ 264VAC          120 ~ 373VDC<br>47 ~ 63Hz<br>80%<br>86%<br>88%<br>88%<br>90%<br>0.95A/115VAC          0.56A/230VAC<br>COLD START 45A/230VAC<br><0.75mA / 240VAC<br>110 ~ 150% rated output power<br>I/P-O/P:4KVAC     I/P-FG:2KVAC     O/P-FG:1.25KVAC<br>I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH<br>-30 ~ +70℃(Refer to "Derating Curve")<br>20 ~ 90% RH non-condensing<br>-40 ~ +85℃, 10 ~ 95% RH non-condensing<br>±0.03%/℃(0 ~ 50℃)<br>10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes<br>645K hrs min.      MIL-HDBK-217F (25℃)<br>0.23Kg; 60pcs/14.8Kg/0.88CUFT<br>99*82*30mm (L*W*H)<br>3.3V<br>12V<br>15V<br>24V<br>48V<br>10A<br>4.2A<br>3.4A<br>2.2A<br>1.1A<br>0 ~ 10A<br>0 ~ 4.2A<br>0 ~ 3.4A<br>0 ~ 2.2A<br>0 ~ 1.1A<br>33W<br>50.4W<br>51W<br>52.8W<br>52.8W<br>80mVp-p<br>120mVp-p<br>120mVp-p<br>150mVp-p<br>200mVp-p<br>±1.0%<br>±1.0%<br>±1.0%<br>±1.0%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±2.0%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>**RIPPLE & NOISE (max.)Note.2**<br>**VOLTAGE TOLERANCENote.3**<br>**PROTECTION**<br>**ENVIRONMENT**<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed<br>89%<br>36V<br>1.45A<br>0 ~ 1.45A<br>52.2W<br>200mVp-p<br>±1.0%<br>±0.5%<br>±0.5%<br>5V<br>10A<br>0 ~ 10A<br>50W<br>80mVp-p<br>±2.0%<br>±0.5%<br>±1.0%<br>83%<br>**SAFETY STANDARDS**<br>Protection type : Shut down o/p voltage, re-power on to recover<br>3.8 ~ 4.45V<br>5.9~ 7.3V<br>13.8 ~ 16.2V<br>18.75 ~ 21.75V 28.8 ~ 33.6V<br>41.4 ~ 48.6V<br>55.2 ~ 64.8V<br>±3.0%<br>Compliance to EN55032 (CISPR32) Class B, EN55014, EN61000-3-2,-3, GB/T 9254, BSMI CNS13438, EAC TP TC 020<br>Compliance to EN61000-4-2,3,4,5,6,8,11, EN61000-6-2 (EN50082-2), heavy industry level, criteria A, EAC TP TC 020<br>**SAFETY &**<br>**EMC**<br>**(Note 9)**<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>2.97 ~ 3.6V<br>10.2 ~ 13.8V<br>13.5 ~ 18V<br>21.6 ~ 28.8V<br>43.2 ~ 52.8V<br>32.4 ~ 39.6V<br>4.5 ~ 5.5V<br>**LRS-50-3.3**<br>**LRS-50-5**<br>**LRS-50-12**<br>**LRS-50-15**<br>**LRS-50-24**<br>**LRS-50-36**<br>**LRS-50-48**<br>UL62368-1, TUV EN62368-1, EN60335-1, EN61558-1/-2-16,CCC GB4943.1, BSMI CNS14336-1,<br>℃<br><br><br><br><br><br><br><br><br>℃<br><br><br><br><br>**OVER VOLTAGE CATEGORY**<br>Ⅲ; Compliance to EN61558, EN50178, EN60664-1, EN62477-1; altitude up to 2000 meters<br>EAC TP TC 004, AS/NZS 60950.1(by CB) approved|**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**RATED POWER**<br>**OUTPUT**<br>**VOLTAGE ADJ. RANGE**<br>**LINE REGULATION Note.4**<br>**LOAD REGULATIONNote.5**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE RANGE**<br>**FREQUENCY RANGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**LEAKAGE CURRENT**<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**WORKING TEMP.**<br>**WORKING HUMIDITY**<br>**STORAGE TEMP., HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**MTBF**<br>**DIMENSION**<br>**OTHERS**<br>****<br>**PACKING**<br>**OVER LOAD**<br>**OVER VOLTAGE**<br>**AC CURRENT (Typ.)**<br>1000ms, 30ms/230VAC         2000ms,30ms/115VAC  at full load<br>30ms/230VAC      12ms/115VAC at full load<br>85 ~ 264VAC          120 ~ 373VDC<br>47 ~ 63Hz<br>80%<br>86%<br>88%<br>88%<br>90%<br>0.95A/115VAC          0.56A/230VAC<br>COLD START 45A/230VAC<br><0.75mA / 240VAC<br>110 ~ 150% rated output power<br>I/P-O/P:4KVAC     I/P-FG:2KVAC     O/P-FG:1.25KVAC<br>I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH<br>-30 ~ +70℃(Refer to "Derating Curve")<br>20 ~ 90% RH non-condensing<br>-40 ~ +85℃, 10 ~ 95% RH non-condensing<br>±0.03%/℃(0 ~ 50℃)<br>10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes<br>645K hrs min.      MIL-HDBK-217F (25℃)<br>0.23Kg; 60pcs/14.8Kg/0.88CUFT<br>99*82*30mm (L*W*H)<br>3.3V<br>12V<br>15V<br>24V<br>48V<br>10A<br>4.2A<br>3.4A<br>2.2A<br>1.1A<br>0 ~ 10A<br>0 ~ 4.2A<br>0 ~ 3.4A<br>0 ~ 2.2A<br>0 ~ 1.1A<br>33W<br>50.4W<br>51W<br>52.8W<br>52.8W<br>80mVp-p<br>120mVp-p<br>120mVp-p<br>150mVp-p<br>200mVp-p<br>±1.0%<br>±1.0%<br>±1.0%<br>±1.0%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>±2.0%<br>±0.5%<br>±0.5%<br>±0.5%<br>±0.5%<br>**RIPPLE & NOISE (max.)Note.2**<br>**VOLTAGE TOLERANCENote.3**<br>**PROTECTION**<br>**ENVIRONMENT**<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed<br>89%<br>36V<br>1.45A<br>0 ~ 1.45A<br>52.2W<br>200mVp-p<br>±1.0%<br>±0.5%<br>±0.5%<br>5V<br>10A<br>0 ~ 10A<br>50W<br>80mVp-p<br>±2.0%<br>±0.5%<br>±1.0%<br>83%<br>**SAFETY STANDARDS**<br>Protection type : Shut down o/p voltage, re-power on to recover<br>3.8 ~ 4.45V<br>5.9~ 7.3V<br>13.8 ~ 16.2V<br>18.75 ~ 21.75V 28.8 ~ 33.6V<br>41.4 ~ 48.6V<br>55.2 ~ 64.8V<br>±3.0%<br>Compliance to EN55032 (CISPR32) Class B, EN55014, EN61000-3-2,-3, GB/T 9254, BSMI CNS13438, EAC TP TC 020<br>Compliance to EN61000-4-2,3,4,5,6,8,11, EN61000-6-2 (EN50082-2), heavy industry level, criteria A, EAC TP TC 020<br>**SAFETY &**<br>**EMC**<br>**(Note 9)**<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>2.97 ~ 3.6V<br>10.2 ~ 13.8V<br>13.5 ~ 18V<br>21.6 ~ 28.8V<br>43.2 ~ 52.8V<br>32.4 ~ 39.6V<br>4.5 ~ 5.5V<br>**LRS-50-3.3**<br>**LRS-50-5**<br>**LRS-50-12**<br>**LRS-50-15**<br>**LRS-50-24**<br>**LRS-50-36**<br>**LRS-50-48**<br>UL62368-1, TUV EN62368-1, EN60335-1, EN61558-1/-2-16,CCC GB4943.1, BSMI CNS14336-1,<br>℃<br><br><br><br><br><br><br><br><br>℃<br><br><br><br><br>**OVER VOLTAGE CATEGORY**<br>Ⅲ; Compliance to EN61558, EN50178, EN60664-1, EN62477-1; altitude up to 2000 meters<br>EAC TP TC 004, AS/NZS 60950.1(by CB) approved|**LRS-50-3.3**|**LRS-50-5**|**LRS-50-12**|**LRS-50-15**|**LRS-50-24**|**LRS-50-36**|**LRS-50-48**|
|---|---|---|---|---|---|---|---|---|
||**DC VOLTAGE**|3.3V|5V|12V|15V|24V|36V|48V|
||**RATED CURRENT**|10A|10A|4.2A|3.4A|2.2A|1.45A|1.1A|
||**CURRENT RANGE**|0 ~ 10A|0 ~ 10A|0 ~ 4.2A|0 ~ 3.4A|0 ~ 2.2A|0 ~ 1.45A|0 ~ 1.1A|
||**RATED POWER**|33W|50W|50.4W|51W|52.8W|52.2W|52.8W|
||**RIPPLE & NOISE (max.)Note.2**|80mVp-p|80mVp-p|120mVp-p|120mVp-p|150mVp-p|200mVp-p|200mVp-p|
||**VOLTAGE ADJ. RANGE**|2.97 ~ 3.6V|4.5 ~ 5.5V|10.2 ~ 13.8V|13.5 ~ 18V|21.6 ~ 28.8V|32.4 ~ 39.6V|43.2 ~ 52.8V|
||**VOLTAGE TOLERANCENote.3**|±3.0%|±2.0%|±1.0%|±1.0%|±1.0%|±1.0%|±1.0%|
||**LINE REGULATION Note.4**|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|
||**LOAD REGULATIONNote.5**|±2.0%|±1.0%|±0.5%|±0.5%|±0.5%|±0.5%|±0.5%|
||**SETUP, RISE TIME**|1000ms, 30ms/230VAC         2000ms,30ms/115VAC  at full load|||||||
||**HOLD UP TIME (Typ.)**|30ms/230VAC      12ms/115VAC at full load|||||||
||**VOLTAGE RANGE**|85 ~ 264VAC          120 ~ 373VDC|||||||
||**FREQUENCY RANGE**|47 ~ 63Hz|||||||
||**EFFICIENCY (Typ.)**|80%|83%|86%|88%|88%|89%|90%|
||**AC CURRENT (Typ.)**|0.95A/115VAC          0.56A/230VAC|||||||
||**INRUSH CURRENT (Typ.)**|COLD START 45A/230VAC|||||||
||**LEAKAGE CURRENT**|<0.75mA / 240VAC|||||||
||**OVER LOAD**|110 ~ 150% rated output power<br>Protection type : Hiccup mode, recovers automatically after fault condition is removed|||||||
||**OVER VOLTAGE**|Protection type : Shut down o/p voltage, re-power on to recover<br>3.8 ~ 4.45V<br>5.9~ 7.3V<br>13.8 ~ 16.2V<br>18.75 ~ 21.75V 28.8 ~ 33.6V<br>41.4 ~ 48.6V<br>55.2 ~ 64.8V|||||||
||**WORKING TEMP.**|-30 ~ +70℃(Refer to "Derating Curve")|||||||
||**WORKING HUMIDITY**|20 ~ 90% RH non-condensing|||||||
||**STORAGE TEMP., HUMIDITY**|-40 ~ +85℃, 10 ~ 95% RH non-condensing|||||||
||**TEMP. COEFFICIENT**|±0.03%/℃(0 ~ 50℃)|||||||
||**VIBRATION**|10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes|||||||
||**OVER VOLTAGE CATEGORY**|Ⅲ; Compliance to EN61558, EN50178, EN60664-1, EN62477-1; altitude up to 2000 meters|||||||
||**SAFETY STANDARDS**|UL62368-1, TUV EN62368-1, EN60335-1, EN61558-1/-2-16,CCC GB4943.1, BSMI CNS14336-1,<br>EAC TP TC 004, AS/NZS 60950.1(by CB) approved|||||||
||**WITHSTAND VOLTAGE**|I/P-O/P:4KVAC     I/P-FG:2KVAC     O/P-FG:1.25KVAC|||||||
||**ISOLATION RESISTANCE**|I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25℃/ 70% RH|||||||
||**EMC EMISSION**|Compliance to EN55032 (CISPR32) Class B, EN55014, EN61000-3-2,-3, GB/T 9254, BSMI CNS13438, EAC TP TC 020|||||||
||**EMC IMMUNITY**|Compliance to EN61000-4-2,3,4,5,6,8,11, EN61000-6-2 (EN50082-2), heavy industry level, criteria A, EAC TP TC 020|||||||
||**MTBF**|645K hrs min.      MIL-HDBK-217F (25℃)|||||||
||**DIMENSION**|99*82*30mm (L*W*H)|||||||
||**PACKING**|0.23Kg; 60pcs/14.8Kg/0.88CUFT|||||||



_File Name:LRS-50-SPEC   2019-07-23_ 

**LRS - 50  series** 

## 50W Single Output Switching Power Supply 

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Block Diagram<br>fosc : 115Vac : 75KHz<br>          230Vac :110KHz<br>EMI RECTIFIERS POWER RECTIFIERS +V<br>I/P FILTER & SWITCHING & -V<br>FILTER FILTER<br>O.V.P.<br>FG<br>DETECTION<br>O.L.P. CONTROL<br>CIRCUIT<br>Derating Curve Static Characteristics<br>230VAC 100<br>100<br>90<br>75<br>80<br>100VAC 100VAC<br>60 Input only for 5V 70<br>60<br>40<br>50<br>20<br>40<br>-30 -25 0 10 20 30 40 50 60 70  (HORIZONTAL) 85 95 100 115 120 140 160 180 200 220 240 264<br>AMBIENT TEMPERATURE ( ℃ ) INPUT VOLTAGE (VAC) 60Hz<br>LOAD (%) LOAD (%)<br>**----- End of picture text -----**<br>


_File Name:LRS-50-SPEC   2019-07-23_ 

**LRS - 50  series** 

50W Single Output Switching Power Supply 

## **Mechanical Specification** 

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4.5 92.5<br>1<br>2<br>3<br>4<br>5<br>20.5 55<br>99<br>6.5 90<br>10 74<br>3.5<br>ψ<br>2-M3 L=3.0<br>ψ<br>3.5<br>2-M3 L=5<br>9.5<br>70 82<br>8<br>40.5<br>3.5<br>6.5<br>30<br>26<br>15 3.5 14.5<br>**----- End of picture text -----**<br>


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Case No.239A      Unit:mm<br>**----- End of picture text -----**<br>


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**----- Start of picture text -----**<br>
Terminal Pin No.  Assignment<br>Pin No. Assignment Pin No. Assignment<br>1 AC/L 4 DC OUTPUT -V<br>2 AC/N 5 DC OUTPUT +V<br>3 FG<br>**----- End of picture text -----**<br>


## **Installation Manual** 

Please refer to : http://www.meanwell.com/manual.html 

_File Name:LRS-50-SPEC   2019-07-23_
Updated at June 6, 2026
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