SLD-50-56

LED Driver, 50.4 W, 56 VDC, 1.05 A, Constant Current, Constant Voltage, 110 V

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Manufacturer: MEAN WELL
Product type: AC / DC LED Power Supplies
SVHC: No SVHC (25-Jun-2025)
Product Range: SLD-50
Output Current: 1.05A
LED Driver Mode: Constant Current, Constant Voltage
Output Power Max: 50.4W
Input Voltage Max: 305VAC
Input Voltage Min: 110V
Output Voltage Max: 56VDC
Power Supply Applications: -
Delivery and price
Units per pack	250
Price	13.64 €
Current stock	10+
Lead time	30 days
Datasheet
**SLD - 50  series** 

50W linear LED Driver 

## **  ** OVVYT 

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_File Name:SLD-50-SPEC   2020-07-03_ 

**SLD - 50  series** 

50W Constant Voltage+Constant Current LED Driver 

## **SPECIFICATION** 

|**MODEL**<br>**OUTPUT**<br>**VOLTAGE RANGENote.5**<br>**FREQUENCY RANGE**<br>**POWER FACTOR**<br>**EFFICIENCY (Typ.)**<br>**AC CURRENT**<br>**INPUT**<br>**INRUSH CURRENT(Typ.)**<br>**LEAKAGE CURRENT**<br>**WORKING TEMP.**<br>**WORKING HUMIDITY**<br>**STORAGE TEMP., HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**MTBF**<br>**DIMENSION**<br>**OTHERS**<br>**NOTE**<br>**PACKING**<br>**OVER VOLTAGE**<br>47 ~ 63Hz<br>20 ~ 95% RH non-condensing<br>-40 ~ +80℃, 10 ~ 95% RH<br>±0.03%/℃(0 ~ 50℃)<br>10 ~ 500Hz, 2G 12min./1cycle, period for  72min. each along X, Y, Z axes<br>1304.51K hrs min.      Telcordia SR-332 (Bellcore) ;    362.82K hrs min.      MIL-HDBK-217F (25℃)<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**PROTECTION**<br>**SHORT CIRCUIT**<br>I/P-O/P:3.75KVAC<br>I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**TOTAL HARMONIC DISTORTION**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**RATED POWERNote.5**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIMENote.6**<br>**HOLD UP TIME (Typ.)**<br>**RIPPLE & NOISE (max.)Note.3**<br>**VOLTAGE TOLERANCENote.4**<br>**CONSTANT CURRENT REGIONNote.2**<br>**OVER CURRENT**<br>**SAFETY STANDARDS**<br>COLD START 50A(twidth=270 s measured at 50% Ipeak) at 230VAC<br>μ<br>;Per NEMA 410<br>**MAX. No. of PSUs on 16A**<br>**CIRCUIT BREAKER**<br>8 units (circuit breaker of type B) / 16 units  (circuit breaker of type C) at 230VAC<br>**MAX. CASE TEMP.**<br>Tcase=+90℃<br>(Please refer to "STATIC CHARACTERISTIC" section)<br>110 ~ 305VAC          155 ~ 431VDC<br>℃<br><br><br><br><br><br><br><br>℃<br><br>℃℃<br>95 ~ 108%<br>Hiccup mode, recovers automatically after fault condition is removed<br>Constant current limiting or Hiccup mode, recovers automatically after fault condition is removed<br>PF≧0.97/115VAC, PF≧0.95/230VAC, PF≧0.92/277VAC@full load<br>(Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)<br>THD< 10%(@load≧60%/115VC,230VAC; @load≧75%/277VAC)<br>(Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)<br>Tcase=-20 ~ +90℃(Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)<br>Shut down and latch off o/p voltage, re-power on to recover<br>12V<br>24V<br>8.4 ~12V<br>16.8 ~24V<br>4.2A<br>2.1A<br>50.4W<br>50.4W<br>**SLD-50-12**<br>**SLD-50-24**<br>88%<br>90%<br>0.6A / 115VAC          0.3A / 230VAC          0.25A/277VAC<br>150mVp-p<br>240mVp-p<br>±4.0%<br>±3.0%<br>±0.5%<br>±0.5%<br>±1.5%<br>±0.5%<br>10ms/230VAC          10ms/115VAC<br>500ms, 80ms   115VAC / 230VAC<br><0.25mA / 277VAC<br>28 ~ 34V<br>14 ~ 17V<br>UL8750,CSA C22.2 No. 250.13-12, ENEC EN61347-1, EN61347-2-13 independent, EN62384,<br>EAC TP TC 004,GB19510.1,GB19510.14,IS15885(Part2/Sec13) approved<br>280*30*16.8mm (L*W*H)<br>0.175Kg;64pcs/12.4Kg/  0.67CUFT<br><0.5W<br>**NO LOAD POWER CONSUMPTION**<br>**OVER TEMPERATURE**<br>Shut down output voltage, re-power on to recover<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Voltage Dips and Interruptions<br>Conducted<br>Radiated<br>Harmonic Current<br>Voltage Flicker<br>EN61547<br>**Standard**<br>**Standard**<br>EN61000-4-2<br>EN61000-4-3<br>EN61000-4-4<br>EN61000-4-5<br>EN61000-4-6<br>EN61000-4-8<br>EN61000-4-11<br>**Test Level / Note**<br>**Test Level / Note**<br>Level 3, 8KV air ; Level 2, 4KV contact<br>Level 2<br>Level 2<br>Level 2<br>Level 2<br>>95% dip 0.5 periods, 30% dip 25 periods,<br>>95% interruptions 250 periods<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>1KV/Line-Line<br>EN55015(CISPR15) ,GB/T17743<br>EN61000-3-2,GB/T17625.1<br>EN61000-3-3<br>-----<br>-----<br>Class C @load≥60%<br>-----<br>EN55015(CISPR15) ,GB/T17743|**MODEL**<br>**OUTPUT**<br>**VOLTAGE RANGENote.5**<br>**FREQUENCY RANGE**<br>**POWER FACTOR**<br>**EFFICIENCY (Typ.)**<br>**AC CURRENT**<br>**INPUT**<br>**INRUSH CURRENT(Typ.)**<br>**LEAKAGE CURRENT**<br>**WORKING TEMP.**<br>**WORKING HUMIDITY**<br>**STORAGE TEMP., HUMIDITY**<br>**TEMP. COEFFICIENT**<br>**VIBRATION**<br>**MTBF**<br>**DIMENSION**<br>**OTHERS**<br>**NOTE**<br>**PACKING**<br>**OVER VOLTAGE**<br>47 ~ 63Hz<br>20 ~ 95% RH non-condensing<br>-40 ~ +80℃, 10 ~ 95% RH<br>±0.03%/℃(0 ~ 50℃)<br>10 ~ 500Hz, 2G 12min./1cycle, period for  72min. each along X, Y, Z axes<br>1304.51K hrs min.      Telcordia SR-332 (Bellcore) ;    362.82K hrs min.      MIL-HDBK-217F (25℃)<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**PROTECTION**<br>**SHORT CIRCUIT**<br>I/P-O/P:3.75KVAC<br>I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**TOTAL HARMONIC DISTORTION**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**RATED POWERNote.5**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIMENote.6**<br>**HOLD UP TIME (Typ.)**<br>**RIPPLE & NOISE (max.)Note.3**<br>**VOLTAGE TOLERANCENote.4**<br>**CONSTANT CURRENT REGIONNote.2**<br>**OVER CURRENT**<br>**SAFETY STANDARDS**<br>COLD START 50A(twidth=270 s measured at 50% Ipeak) at 230VAC<br>μ<br>;Per NEMA 410<br>**MAX. No. of PSUs on 16A**<br>**CIRCUIT BREAKER**<br>8 units (circuit breaker of type B) / 16 units  (circuit breaker of type C) at 230VAC<br>**MAX. CASE TEMP.**<br>Tcase=+90℃<br>(Please refer to "STATIC CHARACTERISTIC" section)<br>110 ~ 305VAC          155 ~ 431VDC<br>℃<br><br><br><br><br><br><br><br>℃<br><br>℃℃<br>95 ~ 108%<br>Hiccup mode, recovers automatically after fault condition is removed<br>Constant current limiting or Hiccup mode, recovers automatically after fault condition is removed<br>PF≧0.97/115VAC, PF≧0.95/230VAC, PF≧0.92/277VAC@full load<br>(Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)<br>THD< 10%(@load≧60%/115VC,230VAC; @load≧75%/277VAC)<br>(Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)<br>Tcase=-20 ~ +90℃(Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)<br>Shut down and latch off o/p voltage, re-power on to recover<br>12V<br>24V<br>8.4 ~12V<br>16.8 ~24V<br>4.2A<br>2.1A<br>50.4W<br>50.4W<br>**SLD-50-12**<br>**SLD-50-24**<br>88%<br>90%<br>0.6A / 115VAC          0.3A / 230VAC          0.25A/277VAC<br>150mVp-p<br>240mVp-p<br>±4.0%<br>±3.0%<br>±0.5%<br>±0.5%<br>±1.5%<br>±0.5%<br>10ms/230VAC          10ms/115VAC<br>500ms, 80ms   115VAC / 230VAC<br><0.25mA / 277VAC<br>28 ~ 34V<br>14 ~ 17V<br>UL8750,CSA C22.2 No. 250.13-12, ENEC EN61347-1, EN61347-2-13 independent, EN62384,<br>EAC TP TC 004,GB19510.1,GB19510.14,IS15885(Part2/Sec13) approved<br>280*30*16.8mm (L*W*H)<br>0.175Kg;64pcs/12.4Kg/  0.67CUFT<br><0.5W<br>**NO LOAD POWER CONSUMPTION**<br>**OVER TEMPERATURE**<br>Shut down output voltage, re-power on to recover<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Voltage Dips and Interruptions<br>Conducted<br>Radiated<br>Harmonic Current<br>Voltage Flicker<br>EN61547<br>**Standard**<br>**Standard**<br>EN61000-4-2<br>EN61000-4-3<br>EN61000-4-4<br>EN61000-4-5<br>EN61000-4-6<br>EN61000-4-8<br>EN61000-4-11<br>**Test Level / Note**<br>**Test Level / Note**<br>Level 3, 8KV air ; Level 2, 4KV contact<br>Level 2<br>Level 2<br>Level 2<br>Level 2<br>>95% dip 0.5 periods, 30% dip 25 periods,<br>>95% interruptions 250 periods<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>1KV/Line-Line<br>EN55015(CISPR15) ,GB/T17743<br>EN61000-3-2,GB/T17625.1<br>EN61000-3-3<br>-----<br>-----<br>Class C @load≥60%<br>-----<br>EN55015(CISPR15) ,GB/T17743|**SLD-50-12**|**SLD-50-12**|**SLD-50-24**|**SLD-50-24**|
|---|---|---|---|---|---|
||**DC VOLTAGE**|12V||24V||
||**CONSTANT CURRENT REGIONNote.2**|8.4 ~12V||16.8 ~24V||
||**RATED CURRENT**|4.2A||2.1A||
||**RATED POWERNote.5**|50.4W||50.4W||
||**RIPPLE & NOISE (max.)Note.3**|150mVp-p||240mVp-p||
||**VOLTAGE TOLERANCENote.4**|±4.0%||±3.0%||
||**LINE REGULATION**|±0.5%||±0.5%||
||**LOAD REGULATION**|±1.5%||±0.5%||
||**SETUP, RISE TIMENote.6**|500ms, 80ms   115VAC / 230VAC||||
||**HOLD UP TIME (Typ.)**|10ms/230VAC          10ms/115VAC||||
||**VOLTAGE RANGENote.5**|(Please refer to "STATIC CHARACTERISTIC" section)<br>110 ~ 305VAC          155 ~ 431VDC||||
||**FREQUENCY RANGE**|47 ~ 63Hz||||
||**POWER FACTOR**|PF≧0.97/115VAC, PF≧0.95/230VAC, PF≧0.92/277VAC@full load<br>(Please refer to "POWER FACTOR (PF) CHARACTERISTIC" section)||||
||**TOTAL HARMONIC DISTORTION**|THD< 10%(@load≧60%/115VC,230VAC; @load≧75%/277VAC)<br>(Please refer to “TOTAL HARMONIC DISTORTION(THD)” section)||||
||**EFFICIENCY (Typ.)**|88%||90%||
||**AC CURRENT**|0.6A / 115VAC          0.3A / 230VAC          0.25A/277VAC||||
||**INRUSH CURRENT(Typ.)**|COLD START 50A(twidth=270 s measured at 50% Ipeak) at 230VAC<br>μ<br>;Per NEMA 410||||
||**MAX. No. of PSUs on 16A**<br>**CIRCUIT BREAKER**|8 units (circuit breaker of type B) / 16 units  (circuit breaker of type C) at 230VAC||||
||**LEAKAGE CURRENT**|<0.25mA / 277VAC||||
||**NO LOAD POWER CONSUMPTION**|<0.5W||||
||**OVER CURRENT**|95 ~ 108%<br>Constant current limiting or Hiccup mode, recovers automatically after fault condition is removed||||
||**SHORT CIRCUIT**|Hiccup mode, recovers automatically after fault condition is removed||||
||**OVER VOLTAGE**|Shut down and latch off o/p voltage, re-power on to recover<br>28 ~ 34V<br>14 ~ 17V||||
||**OVER TEMPERATURE**|Shut down output voltage, re-power on to recover||||
||**WORKING TEMP.**|Tcase=-20 ~ +90℃(Please refer to “ OUTPUT LOAD vs TEMPERATURE” section)||||
||**MAX. CASE TEMP.**|Tcase=+90℃||||
||**WORKING HUMIDITY**|20 ~ 95% RH non-condensing||||
||**STORAGE TEMP., HUMIDITY**|-40 ~ +80℃, 10 ~ 95% RH||||
||**TEMP. COEFFICIENT**|±0.03%/℃(0 ~ 50℃)||||
||**VIBRATION**|10 ~ 500Hz, 2G 12min./1cycle, period for  72min. each along X, Y, Z axes||||
||**SAFETY STANDARDS**|UL8750,CSA C22.2 No. 250.13-12, ENEC EN61347-1, EN61347-2-13 independent, EN62384,<br>EAC TP TC 004,GB19510.1,GB19510.14,IS15885(Part2/Sec13) approved||||
||**WITHSTAND VOLTAGE**|I/P-O/P:3.75KVAC||||
||**ISOLATION RESISTANCE**<br>**EMC IMMUNITY**<br>**EMC EMISSION**|I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH||||
|||**Parameter**|**Standard**||**Test Level / Note**|
|||Conducted|EN55015(CISPR15) ,GB/T17743||-----|
|||Radiated|EN55015(CISPR15) ,GB/T17743||-----|
|||Harmonic Current|EN61000-3-2,GB/T17625.1||Class C @load≥60%|
|||Voltage Flicker|EN61000-3-3||-----|
|||EN61547||||
|||**Parameter**|**Standard**||**Test Level / Note**|
|||ESD|EN61000-4-2||Level 3, 8KV air ; Level 2, 4KV contact|
|||Radiated|EN61000-4-3||Level 2|
|||EFT / Burst|EN61000-4-4||Level 2|
|||Surge|EN61000-4-5||1KV/Line-Line|
|||Conducted|EN61000-4-6||Level 2|
|||Magnetic Field|EN61000-4-8||Level 2|
|||Voltage Dips and Interruptions|EN61000-4-11||>95% dip 0.5 periods, 30% dip 25 periods,<br>>95% interruptions 250 periods|
||**MTBF**|1304.51K hrs min.      Telcordia SR-332 (Bellcore) ;    362.82K hrs min.      MIL-HDBK-217F (25℃)||||
||**DIMENSION**|280*30*16.8mm (L*W*H)||||
||**PACKING**|0.175Kg;64pcs/12.4Kg/  0.67CUFT||||
||℃<br><br><br><br><br><br><br><br>℃<br><br>℃℃|||||



_File Name:SLD-50-SPEC   2020-07-03_ 

**SLD - 50  series** 

50W Constant Power Mode LED Driver 

## **SPECIFICATION** 

||**MODEL**<br>**RATED CURRENT**<br>**RATED POWERNote.2**<br>**FULL POWER CURRENT RANGE**<br>**OUTPUT**<br>**CURRENT ADJ. RANGE**<br>**VOLTAGE RANGENote.2**<br>**FREQUENCY RANGE**<br>**POWER FACTOR (Typ.)**<br>**EFFICIENCY (Typ.)**<br>**AC CURRENT (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT(Typ.)**<br>**LEAKAGE CURRENT**<br>**WORKING HUMIDITY**<br>**STORAGE TEMP.**<br>**VIBRATION**<br>**OVER VOLTAGE**<br>**OVER TEMPERATURE**<br>47 ~ 63Hz<br>0.6A / 115VAC          0.3A / 230VAC          0.25A / 277VAC<br><0.25mA / 277VAC<br>20 ~ 95% RH non-condensing<br>-40 ~ +80℃<br>10 ~ 500Hz, 2G 12min./1cycle, period for  72min. each along X, Y, Z axes<br>**ENVIRONMENT**<br>**PROTECTION SHORT CIRCUIT**<br>90%<br>COLD START 50A(twidth=270 s measured at 50% Ipeak) at 230VAC;<br>μ<br> Per NEMA 410<br>**TOTAL HARMONIC DISTORTION**<br>**CONSTANT CURRENT REGIONNote.3**<br>**MAX. NO.** **of** **PSUs** **on** **16A**<br>**CIRCUIT** **BREAKER**<br>8 unit(circuit breaker of type B) / 16 units(circuit breaker of type C) at 230VAC<br>Hiccup mode, recovers automatically after fault condition is removed<br>(Please refer to "STATIC CHARACTERISTIC" ang “ DRIVING METHODS OF LED MODULE"section)<br>110 ~ 305VAC          155VDC ~ 431VDC<br>**OPEN CIRCUIT VOLTAGE (max.)**<br>61 ~ 80V<br>Shut down output voltage, re-power on to recovery<br>**TEMP. COEFFICIENT**<br>±0.03%/℃(0 ~ 60℃)<br>**WORKING TEMP.**<br>Tcase=-20 ~ +90℃(Please refer to "OUTPUT LOAD vs TEMPERATURE" section)<br>**MAX. CASE TEMP.**<br>Tcase=+90℃<br>PF<br>0.97 / 115VAC, PF<br>0.95 / 230VAC<br>full load<br>≧<br>≧<br>, PF≧0.92 / 277VAC at<br>(Please refer to "<br>"<br>)<br>Power Factor Characteristic section<br>THD< 10% (@ load≧60% at 115VAC/230VAC ,@load≧75% at 277VAC)<br>Please refer to “TOTAL HARMONIC DISTORTION (THD)” section<br>**CURRENT RIPPLE**<br>5.0%(@rated current)<br>**CURRENT TOLERANCE**<br>±5%<br>**SET UP TIME Note.5**500ms/230VAC, 1200ms/115VAC<br>50.4W<br>1050mA<br>30 ~56V<br>60V<br>450-1400mA<br>900~1400mA<br>**SLD-50-56**<br>Shut down output voltage, re-power on to recovery<br>**OVER POWER**<br>110 ~ 150%<br>Hiccup mode, recovers automatically after fault condition is removed<br><0.5W<br>**NO LOAD POWER CONSUMPTION**<br>**MTBF**<br>1304.51K hrs min.      Telcordia SR-332 (Bellcore) ;    362.82K hrs min.      MIL-HDBK-217F (25℃)<br>**SAFETY &**<br>**EMC**<br>I/P-O/P:3.75KVAC<br>I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**SAFETY STANDARDS**<br>UL8750,CSA C22.2 No. 250.13-12, ENEC EN61347-1, EN61347-2-13 independent, EN62384,<br>EAC TP TC 004,GB19510.1,GB19510.14,IS15885(Part2/Sec13) approved<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Voltage Dips and Interruptions<br>Conducted<br>Radiated<br>Harmonic Current<br>Voltage Flicker<br>EN61547<br>**Standard**<br>**Standard**<br>EN61000-4-2<br>EN61000-4-3<br>EN61000-4-4<br>EN61000-4-5<br>EN61000-4-6<br>EN61000-4-8<br>EN61000-4-11<br>**Test Level / Note**<br>**Test Level / Note**<br>Level 3, 8KV air ; Level 2, 4KV contact<br>Level 2<br>Level 2<br>Level 2<br>Level 2<br>>95% dip 0.5 periods, 30% dip 25 periods,<br>>95% interruptions 250 periods<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>1KV/Line-Line<br>EN61000-3-3<br>-----<br>-----<br>Class C @load≥60%<br>-----<br>**DIMENSION**<br>**OTHERS**<br>**PACKING**<br>280*30*16.8mm (L*W*H)<br>0.175Kg;64pcs/12.4Kg/  0.67CUFT<br>**NOTE**<br>℃<br><br><br>℃<br><br><br><br><br>℃℃<br>EN55015(CISPR15) ,GB/T17743<br>EN61000-3-2,GB/T17625.1<br>EN55015(CISPR15) ,GB/T17743|**MODEL**<br>**RATED CURRENT**<br>**RATED POWERNote.2**<br>**FULL POWER CURRENT RANGE**<br>**OUTPUT**<br>**CURRENT ADJ. RANGE**<br>**VOLTAGE RANGENote.2**<br>**FREQUENCY RANGE**<br>**POWER FACTOR (Typ.)**<br>**EFFICIENCY (Typ.)**<br>**AC CURRENT (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT(Typ.)**<br>**LEAKAGE CURRENT**<br>**WORKING HUMIDITY**<br>**STORAGE TEMP.**<br>**VIBRATION**<br>**OVER VOLTAGE**<br>**OVER TEMPERATURE**<br>47 ~ 63Hz<br>0.6A / 115VAC          0.3A / 230VAC          0.25A / 277VAC<br><0.25mA / 277VAC<br>20 ~ 95% RH non-condensing<br>-40 ~ +80℃<br>10 ~ 500Hz, 2G 12min./1cycle, period for  72min. each along X, Y, Z axes<br>**ENVIRONMENT**<br>**PROTECTION SHORT CIRCUIT**<br>90%<br>COLD START 50A(twidth=270 s measured at 50% Ipeak) at 230VAC;<br>μ<br> Per NEMA 410<br>**TOTAL HARMONIC DISTORTION**<br>**CONSTANT CURRENT REGIONNote.3**<br>**MAX. NO.** **of** **PSUs** **on** **16A**<br>**CIRCUIT** **BREAKER**<br>8 unit(circuit breaker of type B) / 16 units(circuit breaker of type C) at 230VAC<br>Hiccup mode, recovers automatically after fault condition is removed<br>(Please refer to "STATIC CHARACTERISTIC" ang “ DRIVING METHODS OF LED MODULE"section)<br>110 ~ 305VAC          155VDC ~ 431VDC<br>**OPEN CIRCUIT VOLTAGE (max.)**<br>61 ~ 80V<br>Shut down output voltage, re-power on to recovery<br>**TEMP. COEFFICIENT**<br>±0.03%/℃(0 ~ 60℃)<br>**WORKING TEMP.**<br>Tcase=-20 ~ +90℃(Please refer to "OUTPUT LOAD vs TEMPERATURE" section)<br>**MAX. CASE TEMP.**<br>Tcase=+90℃<br>PF<br>0.97 / 115VAC, PF<br>0.95 / 230VAC<br>full load<br>≧<br>≧<br>, PF≧0.92 / 277VAC at<br>(Please refer to "<br>"<br>)<br>Power Factor Characteristic section<br>THD< 10% (@ load≧60% at 115VAC/230VAC ,@load≧75% at 277VAC)<br>Please refer to “TOTAL HARMONIC DISTORTION (THD)” section<br>**CURRENT RIPPLE**<br>5.0%(@rated current)<br>**CURRENT TOLERANCE**<br>±5%<br>**SET UP TIME Note.5**500ms/230VAC, 1200ms/115VAC<br>50.4W<br>1050mA<br>30 ~56V<br>60V<br>450-1400mA<br>900~1400mA<br>**SLD-50-56**<br>Shut down output voltage, re-power on to recovery<br>**OVER POWER**<br>110 ~ 150%<br>Hiccup mode, recovers automatically after fault condition is removed<br><0.5W<br>**NO LOAD POWER CONSUMPTION**<br>**MTBF**<br>1304.51K hrs min.      Telcordia SR-332 (Bellcore) ;    362.82K hrs min.      MIL-HDBK-217F (25℃)<br>**SAFETY &**<br>**EMC**<br>I/P-O/P:3.75KVAC<br>I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>**SAFETY STANDARDS**<br>UL8750,CSA C22.2 No. 250.13-12, ENEC EN61347-1, EN61347-2-13 independent, EN62384,<br>EAC TP TC 004,GB19510.1,GB19510.14,IS15885(Part2/Sec13) approved<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Voltage Dips and Interruptions<br>Conducted<br>Radiated<br>Harmonic Current<br>Voltage Flicker<br>EN61547<br>**Standard**<br>**Standard**<br>EN61000-4-2<br>EN61000-4-3<br>EN61000-4-4<br>EN61000-4-5<br>EN61000-4-6<br>EN61000-4-8<br>EN61000-4-11<br>**Test Level / Note**<br>**Test Level / Note**<br>Level 3, 8KV air ; Level 2, 4KV contact<br>Level 2<br>Level 2<br>Level 2<br>Level 2<br>>95% dip 0.5 periods, 30% dip 25 periods,<br>>95% interruptions 250 periods<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>1KV/Line-Line<br>EN61000-3-3<br>-----<br>-----<br>Class C @load≥60%<br>-----<br>**DIMENSION**<br>**OTHERS**<br>**PACKING**<br>280*30*16.8mm (L*W*H)<br>0.175Kg;64pcs/12.4Kg/  0.67CUFT<br>**NOTE**<br>℃<br><br><br>℃<br><br><br><br><br>℃℃<br>EN55015(CISPR15) ,GB/T17743<br>EN61000-3-2,GB/T17625.1<br>EN55015(CISPR15) ,GB/T17743|**SLD-50-56**|**SLD-50-56**|**SLD-50-56**|
|---|---|---|---|---|---|
|||**RATED CURRENT**|1050mA|||
|||**RATED POWERNote.2**|50.4W|||
|||**CONSTANT CURRENT REGIONNote.3**|30 ~56V|||
|||**FULL POWER CURRENT RANGE**|900~1400mA|||
|||**OPEN CIRCUIT VOLTAGE (max.)**|60V|||
|||**CURRENT ADJ. RANGE**|450-1400mA|||
|||**CURRENT RIPPLE**|5.0%(@rated current)|||
|||**CURRENT TOLERANCE**|±5%|||
|||**SET UP TIME Note.5**|500ms/230VAC, 1200ms/115VAC|||
|||**VOLTAGE RANGENote.2**|(Please refer to "STATIC CHARACTERISTIC" ang “ DRIVING METHODS OF LED MODULE"section)<br>110 ~ 305VAC          155VDC ~ 431VDC|||
|||**FREQUENCY RANGE**|47 ~ 63Hz|||
|||**POWER FACTOR (Typ.)**|PF<br>0.97 / 115VAC, PF<br>0.95 / 230VAC<br>full load<br>≧<br>≧<br>, PF≧0.92 / 277VAC at<br>(Please refer to "<br>"<br>)<br>Power Factor Characteristic section|||
|||**TOTAL HARMONIC DISTORTION**|THD< 10% (@ load≧60% at 115VAC/230VAC ,@load≧75% at 277VAC)<br>Please refer to “TOTAL HARMONIC DISTORTION (THD)” section|||
|||**EFFICIENCY (Typ.)**|90%|||
|||**AC CURRENT (Typ.)**|0.6A / 115VAC          0.3A / 230VAC          0.25A / 277VAC|||
|||**INRUSH CURRENT(Typ.)**|COLD START 50A(twidth=270 s measured at 50% Ipeak) at 230VAC;<br>μ<br> Per NEMA 410|||
|||**MAX. NO.** **of** **PSUs** **on** **16A**<br>**CIRCUIT** **BREAKER**|8 unit(circuit breaker of type B) / 16 units(circuit breaker of type C) at 230VAC|||
|||**LEAKAGE CURRENT**|<0.25mA / 277VAC|||
|||**NO LOAD POWER CONSUMPTION**|<0.5W|||
|||**OVER POWER**|110 ~ 150%<br>Hiccup mode, recovers automatically after fault condition is removed|||
|||**SHORT CIRCUIT**|Hiccup mode, recovers automatically after fault condition is removed|||
|||**OVER VOLTAGE**<br>|61 ~ 80V<br>Shut down output voltage, re-power on to recovery|||
|||**OVER TEMPERATURE**|Shut down output voltage, re-power on to recovery|||
|||**WORKING TEMP.**|Tcase=-20 ~ +90℃(Please refer to "OUTPUT LOAD vs TEMPERATURE" section)|||
|||**MAX. CASE TEMP.**|Tcase=+90℃|||
|||**WORKING HUMIDITY**|20 ~ 95% RH non-condensing|||
|||**STORAGE TEMP.**|-40 ~ +80℃|||
|||**TEMP. COEFFICIENT**|±0.03%/℃(0 ~ 60℃)|||
|||**VIBRATION**|10 ~ 500Hz, 2G 12min./1cycle, period for  72min. each along X, Y, Z axes|||
|||**SAFETY STANDARDS**|UL8750,CSA C22.2 No. 250.13-12, ENEC EN61347-1, EN61347-2-13 independent, EN62384,<br>EAC TP TC 004,GB19510.1,GB19510.14,IS15885(Part2/Sec13) approved|||
|||**WITHSTAND VOLTAGE**|I/P-O/P:3.75KVAC|||
|||**ISOLATION RESISTANCE**<br>**EMC IMMUNITY**<br>**EMC EMISSION**|I/P-O/P:100M Ohms / 500VDC / 25℃/ 70% RH|||
||||**Parameter**|**Standard**|**Test Level / Note**|
||||Conducted|EN55015(CISPR15) ,GB/T17743|-----|
||||Radiated|EN55015(CISPR15) ,GB/T17743|-----|
||||Harmonic Current|EN61000-3-2,GB/T17625.1|Class C @load≥60%|
||||Voltage Flicker|EN61000-3-3|-----|
||||EN61547|||
||||**Parameter**|**Standard**|**Test Level / Note**|
||||ESD|EN61000-4-2|Level 3, 8KV air ; Level 2, 4KV contact|
||||Radiated|EN61000-4-3|Level 2|
||||EFT / Burst|EN61000-4-4|Level 2|
||||Surge|EN61000-4-5|1KV/Line-Line|
||||Conducted|EN61000-4-6|Level 2|
||||Magnetic Field|EN61000-4-8|Level 2|
||||Voltage Dips and Interruptions|EN61000-4-11|>95% dip 0.5 periods, 30% dip 25 periods,<br>>95% interruptions 250 periods|
|||**MTBF**|1304.51K hrs min.      Telcordia SR-332 (Bellcore) ;    362.82K hrs min.      MIL-HDBK-217F (25℃)|||
|||**DIMENSION**|280*30*16.8mm (L*W*H)|||
|||**PACKING**|0.175Kg;64pcs/12.4Kg/  0.67CUFT|||
|||℃<br><br><br>℃<br><br><br><br><br>℃℃||||



_File Name:SLD-50-SPEC   2020-07-03_ 

**SLD - 50 series** 

50W linear LED Driver 

## **BLOCK DIAGRAM** 

**==> picture [464 x 137] intentionally omitted <==**

**----- Start of picture text -----**<br>
PFC fosc : 50~120KHz<br>PWM fosc : 60~130KHz<br>EMI FILTER PFC POWER RECTIFIERS Vo+<br>I/P & CIRCUIT SWITCHING & Vo-<br>RECTIFIERS FILTER<br>O.L.P.<br>O.T.P. O.L.P. DETECTION<br>PWM & PFC CIRCUIT<br>CONTROL<br>O.V.P.<br>**----- End of picture text -----**<br>


## **DRIVING METHODS OF LED MODULE** 

## ◎ **SLD-50-12,24** 

- ※ This series is able to work in either Constant Current mode (a direct drive way) or Constant Voltage mode (usually through additional DC/DC driver) to drive the LEDs. 

**==> picture [216 x 151] intentionally omitted <==**

**----- Start of picture text -----**<br>
100<br>(B)<br>(A) Constant<br>Constant<br>Current area<br>Voltage area<br>70<br>(min.)<br>(C)<br>Hiccup<br>Protection<br>50 100 Io(%)<br>Typical output current normalized by rated current (%)<br>Vo(%)<br>**----- End of picture text -----**<br>


In the constant current region, the highest voltage at the output of the driver depends on the configuration of the end systems. 

Should there be any compatibility issues, please contact MEAN WELL. 

## ◎ **SLD-50-56** 

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**----- Start of picture text -----**<br>
60V<br>450mA,56V 900mA,56V<br>55V<br>50V<br>45V<br>1400mA,36V<br>40V<br>35V<br>30V<br>900mA,30V 1400mA,30V<br>25V<br>0mA 300mA 600mA 900mA 1200mA 1500mA<br>Recommend Performance Region<br>**----- End of picture text -----**<br>


_File Name:SLD-50-SPEC   2020-07-03_ 

**SLD - 50 series** 

50W linear LED Driver 

## **OUTPUT LOAD vs TEMPERATURE** 

**==> picture [491 x 377] intentionally omitted <==**

**----- Start of picture text -----**<br>
100 100<br>230VAC<br>80 80<br>60 60<br>50 110VAC<br>40 40<br>20 20<br>-20 -10 0 15 30 40 50 60 65 70 (HORIZONTAL) -20 -15 0 15 30 50 60 90 (HORIZONTAL)<br>AMBIENT TEMPERATURE,Ta ( ℃ ) Tcase ( ℃ )<br>STATIC CHARACTERISTIC POWER FACTOR (PF) CHARACTERISTIC<br>※ Tcase at 75℃<br>Constant Current Mode<br>100<br>90<br>1<br>80 0.9<br>70 0.8<br>0.7 277V<br>60<br>0.6 230V<br>50 0.5 115V<br>40 0.4<br>0.3<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>100 110 125 135 145 155 165 175 180 200 230 305<br>INPUT VOLTAGE (V) 60Hz LOAD<br>※De-rating is needed under low input voltage.<br>LOAD (%) LOAD (%)<br>PF<br>LOAD (%)<br>**----- End of picture text -----**<br>


## **TOTAL HARMONIC DISTORTION (THD)** 

**==> picture [92 x 8] intentionally omitted <==**

**----- Start of picture text -----**<br>
※ 24V Model, Tcase at 75℃<br>**----- End of picture text -----**<br>


**==> picture [216 x 133] intentionally omitted <==**

**----- Start of picture text -----**<br>
14<br>12<br>10<br>8 277V<br>6 230V<br>115V<br>4<br>2<br>0<br>50% 60% 70% 80% 90% 100%<br>LOAD<br>THD<br>**----- End of picture text -----**<br>


## **EFFICIENCY vs LOAD** 

SLD-50 series possess superior working efficiency that up to 90% can be reached in field applications. ※ 24V Model, Tcase at 75℃ 

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**----- Start of picture text -----**<br>
96%<br>94%<br>92%<br>90%<br>277V<br>88%<br>230V<br>86%<br>115V<br>84%<br>82%<br>80%<br>78%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD<br>EFFICIENCY(%)<br>**----- End of picture text -----**<br>


_File Name:SLD-50-SPEC   2020-07-03_ 

**SLD - 50 series** 

50W linear LED Driver 

## **LIFE TIME** 

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**----- Start of picture text -----**<br>
120<br>100<br>80<br>60<br>40<br>20<br>0<br>25 30 35 40 45 50 55 60 65 70 75 80 85 90<br>Tcase ( ℃ )<br>Mechanical Specification Unit:mm<br>56V with Io adjustable<br>TB1 TB2<br>280<br>272 4<br>T case 113.6<br>2-φ3.5<br>※ T case: Max. Case Temperature.<br>����������� �����������<br>9-10mm 9-10mm<br>������������ ������������<br>Terminal Pin No. Assignment (TB1) : Terminal Pin No. Assignment (TB2) :<br>DEGSON DG219-3.5(GRAY) DEGSON DG219-3.5(RED/BLACK)<br>Pin No. Assignment Pin No. Assignment<br>1 AC/L 1 +V<br>2 AC/N 2 -V<br>4<br>22 30<br>16.8<br>(Kh)<br>LIFETIME<br>20.1<br>**----- End of picture text -----**<br>


## **INSTALLATION MANUAL** 

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

_File Name:SLD-50-SPEC   2020-07-03_
Updated at April 17, 2026
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