Image not available
Illustrative purposes only
DDR-240D-48
Isolated DIN Rail Mount DC/DC Converter, Railway, 2:1, 240 W, 1 Output, 48 V, 5 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: Isolated DIN Rail Mount DC / DC Converters
- SVHC: No SVHC (25-Jun-2025)
- Depth: 113.5mm
- Width: 40mm
- Height: 125.2mm
- Input Ratio: 2:1
- Product Range: DDR-240 Series
- No. of Outputs: 1 Output
- Output Power Max: 240W
- Isolation Voltage: 4kV
- Output Regulation: -
- Input Voltage DC Max: 154V
- Input Voltage DC Min: 67.2V
- Input Voltage DC Nom: 110V
- Output Current - Output 1: 5A
- Output Current - Output 2: -
- Output Voltage - Output 1: 48V
- Output Voltage - Output 2: -
- Power Supply Applications: Railway
- DC / DC Converter Mounting: DIN Rail
- DC / DC Converter Output Type: Fixed, Adjustable
| Delivery and price | |
|---|---|
| Units per pack | 50 |
| Price | 95.91 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**- DDR 240 series** 240W DIN Rail Type DC-DC Converter **==> picture [13 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> ■<br>**----- End of picture text -----**<br> **==> picture [13 x 10] intentionally omitted <==** **----- Start of picture text -----**<br> ■<br>**----- End of picture text -----**<br> **==> picture [11 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> ℃<br>**----- End of picture text -----**<br> **==> picture [13 x 11] intentionally omitted <==** **----- Start of picture text -----**<br> ■<br>**----- End of picture text -----**<br> ℃ **==> picture [13 x 11] intentionally omitted <==** **----- Start of picture text -----**<br> ■<br>**----- End of picture text -----**<br> _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** 240W DIN Rail Type DC-DC Converter ## **SPECIFICATION** |**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**RATED POWER**<br>**OUTPUT**<br>**VOLTAGE ADJ. RANGE**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**OVER TEMPERATURE**<br>**SAFETY STANDARDS**<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>**OVERLOAD**<br>**Note.5**<br>**OVER VOLTAGE**<br>**DC CURRENT (Typ.)**<br>11.2A @24Vdc 5.6A @48Vdc 2.5A @110Vdc<br>30A<br>Protection type : Shut down o/p voltage, re-power on to recover<br>Shut down o/p voltage, re-power on to recover<br>-40 ~ +70<br>(Refer to "Derating Curve")<br>℃<br>5 ~ 95% RH non-condensing<br>-40 ~ +85, 5 ~ 95% RH non-condensing<br>±<br>℃<br>℃<br>0.03%/<br>(0 ~ 55<br>)<br>Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC61373<br>484.9K hrs min.<br>Telcordia SR-332 (Bellcore) ; 189.9K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>40*125.2*113.5mm (W*H*D)<br>0.76Kg;20psc/16.2Kg/1.16CUFT<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25<br>/ 70% RH<br>℃<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note 6)**<br>**PROTECTION**<br>**RIPPLE & NOISE (max.) Note.2**<br>**VOLTAGE TOLERANCE Note.3**<br>℃<br>μ<br>μ<br>℃<br>℃<br>**CURRENT**<br>**POWER**<br>**Note.5**<br>**FUNCTION**<br>Up to 960W (3+1 units). Please refer to the Function Manual<br>Please refer to the Function Manual<br>**PEAK**<br>**INTERRUPTION OF VOLTAGE SUPPLY**<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Conducted<br>Radiated<br>Harmonic Current<br>**Standard**<br>**Standard**<br>EN55032<br>EN55032<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>**Test Level / Note**<br>**Test Level / Note**<br>Class B<br>Class B<br>-----<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>En55024 , EN61000-6-2(EN50082-2)<br>Level 3, 8KV air ; Level 3, 6KV contact; criteria A<br>Level 3, 10V/m ; criteria A<br>Level 4, 30A/m ; criteria A<br>Level 3, 10V ; criteria A<br>Level 3, 2KV ; criteria A<br>**DDR-240B-24**<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>**DDR-240C-24**<br>**DDR-240D-24**<br>**DDR-240C-48**<br>**DDR-240D-48**<br>**DDR-240B-48**<br>16.8 ~ 33.6Vdc<br>90%<br>33.6 ~ 67.2Vdc<br>91%<br>67.2 ~ 154Vdc<br>92%<br>90%<br>92%<br>92.5%<br>57.6 ~ 65V<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>28.8 ~ 35V<br>**RAILWAY STANDARD**<br>Voltage Flicker<br>EN61000-3-3<br>I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc<br>IEC 62368-1 (LVD, except for 67.2~154Vin), EAC TP TC 004, AS/NZS 62368.1 approved Design refer to UL508<br>;<br>**UNDER VOLTAGE LOCKOUT**<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>360W (3sec.)<br>48v<br>5A<br>0 ~ 5A<br>240W<br>7.5A<br>100mVp-p<br>48~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>Compliance to<br>; Meet EN50155 / IEC60571 including IEC61373 for shock & vibration,<br>EN45545-2 for fire protection<br>EN50121-3-2 for EMC<br>500ms, 60ms<br>**DC OK REALY CONTACT RATINGS (max.)**<br>30Vdc/1A resistive load<br>**CURRENT SHARING**<br>**REMOTE ON-OFF CONTROL**<br>57.6 ~ 65.0V<br>57.6 ~ 65V<br>28.8 ~ 35V<br>28.8 ~ 35V<br>Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135%<br>rated output power with auto-recovery<br>24Vin (B - type) :Power<br>V ,<br>ON<br>16.8<br>≥<br>FF<br>V<br>O<br>16.5<br>≤<br>48Vin (C - type) :Power<br>V ,<br>ON<br>33.6<br>≥<br>O<br>33<br>FF<br>V<br>≤<br>110Vin (D - type):Power<br>V ,<br>≥<br>ON<br>67.2<br>O<br>65<br>FF<br>V<br>≤<br>-----<br>-----<br>Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A<br>**OPERATING ALTITUDE Note.7** 2000 meters<br>**Note.4**<br>**CONTINUOUS**<br>**100ms**<br>**RANGE**<br>14.4 ~ 16.8Vdc<br>28.8 ~33.6Vdc<br>66 ~ 67.2Vdc<br>EN50155:2007-B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load<br>Please refer to page 6 Hold up Time( Load de-rating curve )<br>EN50155:2017-Comply with S1 level<br>a~~eG~~<br>a ~~PG~~<br>~~GG~~<br>es~~GO~~<br>PC<br>a GQ<br>a~~QQ~~<br>Qn<br>~~ee~~<br>ee<br>~~eG~~<br>ae<br>~~a~~<br>a<br>a<br>aGC<br>a<br>a<br>es<br>Ce<br>a<br>CO<br>COa<br>a<br>ee<br>~~Qe~~<br>a<br>Rs<br>es<br>as<br>a~~re~~<br>Rn~~GO~~<br>a<br>~~es~~<br>~~GQ~~<br>~~Re~~<br>a<br>~~es~~<br>~~OO~~<br>a<br>~~es~~<br>~~GG~~<br>es<br>~~Qe~~<br>ee<br>1. All parameters NOT specially mentioned are measured at normal input (B:24Vdc , C:48Vdc , D:110Vdc )<br>, rated load and 25 __ of ambient temperature.<br>2. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a0.1_<br>f&47_<br>f parallel capacitor.<br>3. Tolerance: includes set up tolerance, line regulation and load regulation.<br>4. Derating may be needed under low input voltage. Please check the derating curve for more details.<br>5. 3 seconds max., please refer to peak loading curves.<br>6. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with<br>the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>(as available on http://;www.meanwell.com)<br>7. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than2000m(6500ft).|**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**RATED POWER**<br>**OUTPUT**<br>**VOLTAGE ADJ. RANGE**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**OVER TEMPERATURE**<br>**SAFETY STANDARDS**<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>**OVERLOAD**<br>**Note.5**<br>**OVER VOLTAGE**<br>**DC CURRENT (Typ.)**<br>11.2A @24Vdc 5.6A @48Vdc 2.5A @110Vdc<br>30A<br>Protection type : Shut down o/p voltage, re-power on to recover<br>Shut down o/p voltage, re-power on to recover<br>-40 ~ +70<br>(Refer to "Derating Curve")<br>℃<br>5 ~ 95% RH non-condensing<br>-40 ~ +85, 5 ~ 95% RH non-condensing<br>±<br>℃<br>℃<br>0.03%/<br>(0 ~ 55<br>)<br>Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC61373<br>484.9K hrs min.<br>Telcordia SR-332 (Bellcore) ; 189.9K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>40*125.2*113.5mm (W*H*D)<br>0.76Kg;20psc/16.2Kg/1.16CUFT<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25<br>/ 70% RH<br>℃<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note 6)**<br>**PROTECTION**<br>**RIPPLE & NOISE (max.) Note.2**<br>**VOLTAGE TOLERANCE Note.3**<br>℃<br>μ<br>μ<br>℃<br>℃<br>**CURRENT**<br>**POWER**<br>**Note.5**<br>**FUNCTION**<br>Up to 960W (3+1 units). Please refer to the Function Manual<br>Please refer to the Function Manual<br>**PEAK**<br>**INTERRUPTION OF VOLTAGE SUPPLY**<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Conducted<br>Radiated<br>Harmonic Current<br>**Standard**<br>**Standard**<br>EN55032<br>EN55032<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>**Test Level / Note**<br>**Test Level / Note**<br>Class B<br>Class B<br>-----<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>En55024 , EN61000-6-2(EN50082-2)<br>Level 3, 8KV air ; Level 3, 6KV contact; criteria A<br>Level 3, 10V/m ; criteria A<br>Level 4, 30A/m ; criteria A<br>Level 3, 10V ; criteria A<br>Level 3, 2KV ; criteria A<br>**DDR-240B-24**<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>**DDR-240C-24**<br>**DDR-240D-24**<br>**DDR-240C-48**<br>**DDR-240D-48**<br>**DDR-240B-48**<br>16.8 ~ 33.6Vdc<br>90%<br>33.6 ~ 67.2Vdc<br>91%<br>67.2 ~ 154Vdc<br>92%<br>90%<br>92%<br>92.5%<br>57.6 ~ 65V<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>28.8 ~ 35V<br>**RAILWAY STANDARD**<br>Voltage Flicker<br>EN61000-3-3<br>I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc<br>IEC 62368-1 (LVD, except for 67.2~154Vin), EAC TP TC 004, AS/NZS 62368.1 approved Design refer to UL508<br>;<br>**UNDER VOLTAGE LOCKOUT**<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>360W (3sec.)<br>48v<br>5A<br>0 ~ 5A<br>240W<br>7.5A<br>100mVp-p<br>48~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>Compliance to<br>; Meet EN50155 / IEC60571 including IEC61373 for shock & vibration,<br>EN45545-2 for fire protection<br>EN50121-3-2 for EMC<br>500ms, 60ms<br>**DC OK REALY CONTACT RATINGS (max.)**<br>30Vdc/1A resistive load<br>**CURRENT SHARING**<br>**REMOTE ON-OFF CONTROL**<br>57.6 ~ 65.0V<br>57.6 ~ 65V<br>28.8 ~ 35V<br>28.8 ~ 35V<br>Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135%<br>rated output power with auto-recovery<br>24Vin (B - type) :Power<br>V ,<br>ON<br>16.8<br>≥<br>FF<br>V<br>O<br>16.5<br>≤<br>48Vin (C - type) :Power<br>V ,<br>ON<br>33.6<br>≥<br>O<br>33<br>FF<br>V<br>≤<br>110Vin (D - type):Power<br>V ,<br>≥<br>ON<br>67.2<br>O<br>65<br>FF<br>V<br>≤<br>-----<br>-----<br>Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A<br>**OPERATING ALTITUDE Note.7** 2000 meters<br>**Note.4**<br>**CONTINUOUS**<br>**100ms**<br>**RANGE**<br>14.4 ~ 16.8Vdc<br>28.8 ~33.6Vdc<br>66 ~ 67.2Vdc<br>EN50155:2007-B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load<br>Please refer to page 6 Hold up Time( Load de-rating curve )<br>EN50155:2017-Comply with S1 level<br>a~~eG~~<br>a ~~PG~~<br>~~GG~~<br>es~~GO~~<br>PC<br>a GQ<br>a~~QQ~~<br>Qn<br>~~ee~~<br>ee<br>~~eG~~<br>ae<br>~~a~~<br>a<br>a<br>aGC<br>a<br>a<br>es<br>Ce<br>a<br>CO<br>COa<br>a<br>ee<br>~~Qe~~<br>a<br>Rs<br>es<br>as<br>a~~re~~<br>Rn~~GO~~<br>a<br>~~es~~<br>~~GQ~~<br>~~Re~~<br>a<br>~~es~~<br>~~OO~~<br>a<br>~~es~~<br>~~GG~~<br>es<br>~~Qe~~<br>ee<br>1. All parameters NOT specially mentioned are measured at normal input (B:24Vdc , C:48Vdc , D:110Vdc )<br>, rated load and 25 __ of ambient temperature.<br>2. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a0.1_<br>f&47_<br>f parallel capacitor.<br>3. Tolerance: includes set up tolerance, line regulation and load regulation.<br>4. Derating may be needed under low input voltage. Please check the derating curve for more details.<br>5. 3 seconds max., please refer to peak loading curves.<br>6. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with<br>the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>(as available on http://;www.meanwell.com)<br>7. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than2000m(6500ft).|**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**RATED POWER**<br>**OUTPUT**<br>**VOLTAGE ADJ. RANGE**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**OVER TEMPERATURE**<br>**SAFETY STANDARDS**<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>**OVERLOAD**<br>**Note.5**<br>**OVER VOLTAGE**<br>**DC CURRENT (Typ.)**<br>11.2A @24Vdc 5.6A @48Vdc 2.5A @110Vdc<br>30A<br>Protection type : Shut down o/p voltage, re-power on to recover<br>Shut down o/p voltage, re-power on to recover<br>-40 ~ +70<br>(Refer to "Derating Curve")<br>℃<br>5 ~ 95% RH non-condensing<br>-40 ~ +85, 5 ~ 95% RH non-condensing<br>±<br>℃<br>℃<br>0.03%/<br>(0 ~ 55<br>)<br>Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC61373<br>484.9K hrs min.<br>Telcordia SR-332 (Bellcore) ; 189.9K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>40*125.2*113.5mm (W*H*D)<br>0.76Kg;20psc/16.2Kg/1.16CUFT<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25<br>/ 70% RH<br>℃<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note 6)**<br>**PROTECTION**<br>**RIPPLE & NOISE (max.) Note.2**<br>**VOLTAGE TOLERANCE Note.3**<br>℃<br>μ<br>μ<br>℃<br>℃<br>**CURRENT**<br>**POWER**<br>**Note.5**<br>**FUNCTION**<br>Up to 960W (3+1 units). Please refer to the Function Manual<br>Please refer to the Function Manual<br>**PEAK**<br>**INTERRUPTION OF VOLTAGE SUPPLY**<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Conducted<br>Radiated<br>Harmonic Current<br>**Standard**<br>**Standard**<br>EN55032<br>EN55032<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>**Test Level / Note**<br>**Test Level / Note**<br>Class B<br>Class B<br>-----<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>En55024 , EN61000-6-2(EN50082-2)<br>Level 3, 8KV air ; Level 3, 6KV contact; criteria A<br>Level 3, 10V/m ; criteria A<br>Level 4, 30A/m ; criteria A<br>Level 3, 10V ; criteria A<br>Level 3, 2KV ; criteria A<br>**DDR-240B-24**<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>**DDR-240C-24**<br>**DDR-240D-24**<br>**DDR-240C-48**<br>**DDR-240D-48**<br>**DDR-240B-48**<br>16.8 ~ 33.6Vdc<br>90%<br>33.6 ~ 67.2Vdc<br>91%<br>67.2 ~ 154Vdc<br>92%<br>90%<br>92%<br>92.5%<br>57.6 ~ 65V<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>28.8 ~ 35V<br>**RAILWAY STANDARD**<br>Voltage Flicker<br>EN61000-3-3<br>I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc<br>IEC 62368-1 (LVD, except for 67.2~154Vin), EAC TP TC 004, AS/NZS 62368.1 approved Design refer to UL508<br>;<br>**UNDER VOLTAGE LOCKOUT**<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>360W (3sec.)<br>48v<br>5A<br>0 ~ 5A<br>240W<br>7.5A<br>100mVp-p<br>48~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>Compliance to<br>; Meet EN50155 / IEC60571 including IEC61373 for shock & vibration,<br>EN45545-2 for fire protection<br>EN50121-3-2 for EMC<br>500ms, 60ms<br>**DC OK REALY CONTACT RATINGS (max.)**<br>30Vdc/1A resistive load<br>**CURRENT SHARING**<br>**REMOTE ON-OFF CONTROL**<br>57.6 ~ 65.0V<br>57.6 ~ 65V<br>28.8 ~ 35V<br>28.8 ~ 35V<br>Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135%<br>rated output power with auto-recovery<br>24Vin (B - type) :Power<br>V ,<br>ON<br>16.8<br>≥<br>FF<br>V<br>O<br>16.5<br>≤<br>48Vin (C - type) :Power<br>V ,<br>ON<br>33.6<br>≥<br>O<br>33<br>FF<br>V<br>≤<br>110Vin (D - type):Power<br>V ,<br>≥<br>ON<br>67.2<br>O<br>65<br>FF<br>V<br>≤<br>-----<br>-----<br>Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A<br>**OPERATING ALTITUDE Note.7** 2000 meters<br>**Note.4**<br>**CONTINUOUS**<br>**100ms**<br>**RANGE**<br>14.4 ~ 16.8Vdc<br>28.8 ~33.6Vdc<br>66 ~ 67.2Vdc<br>EN50155:2007-B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load<br>Please refer to page 6 Hold up Time( Load de-rating curve )<br>EN50155:2017-Comply with S1 level<br>a~~eG~~<br>a ~~PG~~<br>~~GG~~<br>es~~GO~~<br>PC<br>a GQ<br>a~~QQ~~<br>Qn<br>~~ee~~<br>ee<br>~~eG~~<br>ae<br>~~a~~<br>a<br>a<br>aGC<br>a<br>a<br>es<br>Ce<br>a<br>CO<br>COa<br>a<br>ee<br>~~Qe~~<br>a<br>Rs<br>es<br>as<br>a~~re~~<br>Rn~~GO~~<br>a<br>~~es~~<br>~~GQ~~<br>~~Re~~<br>a<br>~~es~~<br>~~OO~~<br>a<br>~~es~~<br>~~GG~~<br>es<br>~~Qe~~<br>ee<br>1. All parameters NOT specially mentioned are measured at normal input (B:24Vdc , C:48Vdc , D:110Vdc )<br>, rated load and 25 __ of ambient temperature.<br>2. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a0.1_<br>f&47_<br>f parallel capacitor.<br>3. Tolerance: includes set up tolerance, line regulation and load regulation.<br>4. Derating may be needed under low input voltage. Please check the derating curve for more details.<br>5. 3 seconds max., please refer to peak loading curves.<br>6. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with<br>the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>(as available on http://;www.meanwell.com)<br>7. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than2000m(6500ft).|**MODEL**<br>**DC VOLTAGE**<br>**RATED CURRENT**<br>**CURRENT RANGE**<br>**RATED POWER**<br>**OUTPUT**<br>**VOLTAGE ADJ. RANGE**<br>**LINE REGULATION**<br>**LOAD REGULATION**<br>**SETUP, RISE TIME**<br>**HOLD UP TIME (Typ.)**<br>**VOLTAGE**<br>**EFFICIENCY (Typ.)**<br>**INPUT**<br>**INRUSH CURRENT (Typ.)**<br>**OVER TEMPERATURE**<br>**SAFETY STANDARDS**<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>**OVERLOAD**<br>**Note.5**<br>**OVER VOLTAGE**<br>**DC CURRENT (Typ.)**<br>11.2A @24Vdc 5.6A @48Vdc 2.5A @110Vdc<br>30A<br>Protection type : Shut down o/p voltage, re-power on to recover<br>Shut down o/p voltage, re-power on to recover<br>-40 ~ +70<br>(Refer to "Derating Curve")<br>℃<br>5 ~ 95% RH non-condensing<br>-40 ~ +85, 5 ~ 95% RH non-condensing<br>±<br>℃<br>℃<br>0.03%/<br>(0 ~ 55<br>)<br>Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC61373<br>484.9K hrs min.<br>Telcordia SR-332 (Bellcore) ; 189.9K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>40*125.2*113.5mm (W*H*D)<br>0.76Kg;20psc/16.2Kg/1.16CUFT<br>**WITHSTAND VOLTAGE**<br>**ISOLATION RESISTANCE**<br>I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25<br>/ 70% RH<br>℃<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note 6)**<br>**PROTECTION**<br>**RIPPLE & NOISE (max.) Note.2**<br>**VOLTAGE TOLERANCE Note.3**<br>℃<br>μ<br>μ<br>℃<br>℃<br>**CURRENT**<br>**POWER**<br>**Note.5**<br>**FUNCTION**<br>Up to 960W (3+1 units). Please refer to the Function Manual<br>Please refer to the Function Manual<br>**PEAK**<br>**INTERRUPTION OF VOLTAGE SUPPLY**<br>**Parameter**<br>**Parameter**<br>ESD<br>Radiated<br>EFT / Burst<br>Surge<br>Conducted<br>Magnetic Field<br>Conducted<br>Radiated<br>Harmonic Current<br>**Standard**<br>**Standard**<br>EN55032<br>EN55032<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>**Test Level / Note**<br>**Test Level / Note**<br>Class B<br>Class B<br>-----<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>En55024 , EN61000-6-2(EN50082-2)<br>Level 3, 8KV air ; Level 3, 6KV contact; criteria A<br>Level 3, 10V/m ; criteria A<br>Level 4, 30A/m ; criteria A<br>Level 3, 10V ; criteria A<br>Level 3, 2KV ; criteria A<br>**DDR-240B-24**<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>**DDR-240C-24**<br>**DDR-240D-24**<br>**DDR-240C-48**<br>**DDR-240D-48**<br>**DDR-240B-48**<br>16.8 ~ 33.6Vdc<br>90%<br>33.6 ~ 67.2Vdc<br>91%<br>67.2 ~ 154Vdc<br>92%<br>90%<br>92%<br>92.5%<br>57.6 ~ 65V<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>28.8 ~ 35V<br>**RAILWAY STANDARD**<br>Voltage Flicker<br>EN61000-3-3<br>I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc<br>IEC 62368-1 (LVD, except for 67.2~154Vin), EAC TP TC 004, AS/NZS 62368.1 approved Design refer to UL508<br>;<br>**UNDER VOLTAGE LOCKOUT**<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>24V<br>10A<br>0 ~ 10A<br>240W<br>15A<br>80mVp-p<br>24 ~ 28V<br>±1.0%<br>±0.5%<br>±1.0%<br>48V<br>5A<br>0 ~ 5A<br>240W<br>100mVp-p<br>48 ~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>7.5A<br>360W (3sec.)<br>48v<br>5A<br>0 ~ 5A<br>240W<br>7.5A<br>100mVp-p<br>48~ 56V<br>±1.0%<br>±0.5%<br>±1.0%<br>Compliance to<br>; Meet EN50155 / IEC60571 including IEC61373 for shock & vibration,<br>EN45545-2 for fire protection<br>EN50121-3-2 for EMC<br>500ms, 60ms<br>**DC OK REALY CONTACT RATINGS (max.)**<br>30Vdc/1A resistive load<br>**CURRENT SHARING**<br>**REMOTE ON-OFF CONTROL**<br>57.6 ~ 65.0V<br>57.6 ~ 65V<br>28.8 ~ 35V<br>28.8 ~ 35V<br>Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135%<br>rated output power with auto-recovery<br>24Vin (B - type) :Power<br>V ,<br>ON<br>16.8<br>≥<br>FF<br>V<br>O<br>16.5<br>≤<br>48Vin (C - type) :Power<br>V ,<br>ON<br>33.6<br>≥<br>O<br>33<br>FF<br>V<br>≤<br>110Vin (D - type):Power<br>V ,<br>≥<br>ON<br>67.2<br>O<br>65<br>FF<br>V<br>≤<br>-----<br>-----<br>Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A<br>**OPERATING ALTITUDE Note.7** 2000 meters<br>**Note.4**<br>**CONTINUOUS**<br>**100ms**<br>**RANGE**<br>14.4 ~ 16.8Vdc<br>28.8 ~33.6Vdc<br>66 ~ 67.2Vdc<br>EN50155:2007-B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load<br>Please refer to page 6 Hold up Time( Load de-rating curve )<br>EN50155:2017-Comply with S1 level<br>a~~eG~~<br>a ~~PG~~<br>~~GG~~<br>es~~GO~~<br>PC<br>a GQ<br>a~~QQ~~<br>Qn<br>~~ee~~<br>ee<br>~~eG~~<br>ae<br>~~a~~<br>a<br>a<br>aGC<br>a<br>a<br>es<br>Ce<br>a<br>CO<br>COa<br>a<br>ee<br>~~Qe~~<br>a<br>Rs<br>es<br>as<br>a~~re~~<br>Rn~~GO~~<br>a<br>~~es~~<br>~~GQ~~<br>~~Re~~<br>a<br>~~es~~<br>~~OO~~<br>a<br>~~es~~<br>~~GG~~<br>es<br>~~Qe~~<br>ee<br>1. All parameters NOT specially mentioned are measured at normal input (B:24Vdc , C:48Vdc , D:110Vdc )<br>, rated load and 25 __ of ambient temperature.<br>2. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a0.1_<br>f&47_<br>f parallel capacitor.<br>3. Tolerance: includes set up tolerance, line regulation and load regulation.<br>4. Derating may be needed under low input voltage. Please check the derating curve for more details.<br>5. 3 seconds max., please refer to peak loading curves.<br>6. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with<br>the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>(as available on http://;www.meanwell.com)<br>7. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than2000m(6500ft).|**DDR-240B-24**|**DDR-240B-48**|**DDR-240C-24**|**DDR-240C-48**|**DDR-240C-48**|**DDR-240D-24**|**DDR-240D-48**| |---|---|---|---|---|---|---|---|---|---|---| ||**DC VOLTAGE**<br>a|||24V<br>|48V<br>|24V<br>|48V<br>||24V<br>|48v<br>| ||**RATED CURRENT**<br>a~~eG~~|||10A<br>~~eG~~|5A<br>~~eG~~|10A<br>~~eG~~|5A<br>~~eG~~||10A<br>~~eG~~|5A<br>~~eG~~| ||**CURRENT RANGE**<br>~~eG~~<br>a|||0 ~ 10A<br>~~eG~~<br>~~PG~~|0 ~ 5A<br>~~eG~~<br>~~PG~~|0 ~ 10A<br>~~eG~~<br>~~PG~~|0 ~ 5A<br>~~eG~~<br>~~PG~~||0 ~ 10A<br>~~eG~~<br>~~PG~~|0 ~ 5A<br>~~eG~~<br>~~PG~~| ||**RATED POWER**<br>a <br>~~GG~~<br>es|||240W<br> ~~PG~~<br>~~GG~~<br>~~GO~~|240W<br>~~PG~~<br>~~GG~~<br>~~GO~~|240W<br>~~PG~~<br>~~GG~~<br>~~GO~~|240W<br>~~PG~~<br>~~GG~~<br>~~GO~~||240W<br>~~PG~~<br>~~GG~~<br>~~GO~~|240W<br>~~PG~~<br>~~GG~~<br>~~GO~~| ||**PEAK**<br>~~GG~~<br>PC|**CURRENT**<br>**POWER**<br>**Note.5**<br>~~GG~~<br>es<br>PC||7.5A<br>15A<br>15A<br>15A<br>7.5A<br>360W (3sec.)<br>7.5A<br>~~GG~~<br>~~GO~~||||||| ||**RIPPLE & NOISE (max.) Note.2**<br>PC<br>a|||80mVp-p<br>GQ|100mVp-p<br>GQ|80mVp-p<br>GQ|100mVp-p<br>GQ||80mVp-p<br>GQ|100mVp-p<br>GQ| ||**VOLTAGE ADJ. RANGE**<br>a <br>a|||24 ~ 28V<br> GQ<br>|48 ~ 56V<br>GQ<br>|24 ~ 28V<br>GQ<br>|48 ~ 56V<br>GQ<br><br>Qn||24 ~ 28V<br>GQ<br><br>Qn|48~ 56V<br>GQ<br>| ||**VOLTAGE TOLERANCE Note.3**<br>a~~QQ~~|||±1.0%<br>~~QQ~~|±1.0%<br>~~QQ~~<br>ee|±1.0%<br>~~QQ~~|±1.0%<br>~~QQ~~<br>Qn||±1.0%<br>~~QQ~~<br>Qn|±1.0%<br>~~QQ~~| ||**LINE REGULATION**<br>~~QQ~~<br>~~ee~~|||±0.5%<br>~~QQ~~<br>~~ee~~|±0.5%<br>~~QQ~~<br>~~ee~~<br>ee|±0.5%<br>~~QQ~~<br>~~ee~~|±0.5%<br>~~QQ~~<br>Qn<br>~~ee~~||±0.5%<br>~~QQ~~<br>Qn<br>~~ee~~|±0.5%<br>~~QQ~~<br>~~ee~~| ||**LOAD REGULATION**<br>~~ee~~<br>~~eG~~<br>ae|||±1.0%<br>~~ee~~<br>~~eG~~|±1.0%<br>~~ee~~<br>ee<br>~~eG~~|±1.0%<br>~~ee~~<br>~~eG~~|±1.0%<br>~~ee~~<br>~~eG~~||±1.0%<br>~~ee~~<br>~~eG~~|±1.0%<br>~~ee~~<br>~~eG~~| ||**SETUP, RISE TIME**<br>ae|||500ms, 60ms||||||| ||**HOLD UP TIME (Typ.)**<br>ae<br>~~a~~<br>a|||Please refer to page 6 Hold up Time( Load de-rating curve )<br>a||||||| ||**VOLTAGE**<br>**Note.4**<br>**RANGE**<br>~~a~~||**CONTINUOUS**<br>**100ms**<br>~~a~~<br>a<br>a|16.8 ~ 33.6Vdc<br>14.4 ~ 16.8Vdc<br>a<br>a||33.6 ~ 67.2Vdc<br>28.8 ~33.6Vdc|||67.2 ~ 154Vdc<br>66 ~ 67.2Vdc|| ||**EFFICIENCY (Typ.)**<br>a<br>a|||90%<br>a<br>GC|90%<br>GC|91%<br>GC|92%<br>GC||92%<br>GC|92.5%<br>GC| ||**DC CURRENT (Typ.)**<br>a<br>a|||11.2A @24Vdc 5.6A @48Vdc 2.5A @110Vdc<br>GC||11.2A @24Vdc 5.6A @48Vdc 2.5A @110Vdc<br>GC|||11.2A @24Vdc 5.6A @48Vdc 2.5A @110Vdc<br>GC|| ||**INRUSH CURRENT (Typ.)**<br>a<br>a|||30A||||||| ||**INTERRUPTION OF VOLTAGE SUPPLY**<br>a|||EN50155:2007-B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load<br>EN50155:2017-Comply with S1 level||||||| ||**OVERLOAD**<br>**Note.5**|||Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135%<br>rated output power with auto-recovery<br>es||||||| ||**OVER VOLTAGE**|||Protection type : Shut down o/p voltage, re-power on to recover<br>57.6 ~ 65V<br>28.8 ~ 35V<br>57.6 ~ 65.0V<br>57.6 ~ 65V<br>28.8 ~ 35V<br>28.8 ~ 35V<br>es<br>Ce||||||| ||**OVER TEMPERATURE**<br>a|||Shut down o/p voltage, re-power on to recover<br>Ce||||||| ||**UNDER VOLTAGE LOCKOUT**<br>CO|||24Vin (B - type) :Power<br>V ,<br>ON<br>16.8<br>≥<br>FF<br>V<br>O<br>16.5<br>≤||48Vin (C - type) :Power<br>V ,<br>ON<br>33.6<br>≥<br>O<br>33<br>FF<br>V<br>≤|||110Vin (D - type):Power<br>V ,<br>≥<br>ON<br>67.2<br>O<br>65<br>FF<br>V<br>≤|| ||**DC OK REALY CONTACT RATINGS (max.)**<br>CO<br>CO|||30Vdc/1A resistive load||||||| ||**CURRENT SHARING**<br>CO<br>CO|||Up to 960W (3+1 units). Please refer to the Function Manual||||||| ||**REMOTE ON-OFF CONTROL**<br>COa|||Please refer to the Function Manual||||||| ||**WORKING TEMP.**<br>a<br>ee|||-40 ~ +70<br>(Refer to "Derating Curve")<br>℃||||||| ||**WORKING HUMIDITY**<br>a<br>ee|||5 ~ 95% RH non-condensing||||||| ||**STORAGE TEMP., HUMIDITY**<br>ee<br>~~Qe~~|||-40 ~ +85, 5 ~ 95% RH non-condensing<br>~~Qe~~||||||| ||**TEMP. COEFFICIENT**<br>~~Qe~~<br>a<br>Rs|||±<br>℃<br>℃<br>0.03%/<br>(0 ~ 55<br>)<br>~~Qe~~||||||| ||**VIBRATION**<br>a<br>Rs<br>es|||Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC61373||||||| ||**SAFETY STANDARDS**<br>**OPERATING ALTITUDE Note.7** <br>Rs<br>es<br>as|||IEC 62368-1 (LVD, except for 67.2~154Vin), EAC TP TC 004, AS/NZS 62368.1 approved Design refer to UL508<br>;<br> 2000 meters||||||| ||**WITHSTAND VOLTAGE**<br>as<br>a|||I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc<br>||||||| ||**ISOLATION RESISTANCE**<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>a~~re~~<br>Rn|||I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25<br>/ 70% RH<br>℃<br>~~re~~<br>Rn||||||| |||||**Parameter**<br>Rn||**Standard**<br>||**Test Level / Note**<br>||| |||||Conducted<br>Rn~~GO~~||EN55032<br>~~GO~~||Class B<br>~~GO~~||| |||||Radiated<br>a||EN55032||Class B||| |||||Harmonic Current<br>Voltage Flicker<br>a<br>~~es~~<br>~~GQ~~||EN61000-3-3<br>-----<br>~~es~~<br>~~GQ~~||-----<br>-----<br>~~es~~<br>~~GQ~~||| |||||En55024 , EN61000-6-2(EN50082-2)<br>~~Re~~||||||| |||||**Parameter**<br>a||**Standard**||**Test Level / Note**||| |||||ESD<br>~~es~~||EN61000-4-2<br>~~es~~||Level 3, 8KV air ; Level 3, 6KV contact; criteria A<br>~~es~~||| |||||Radiated||EN61000-4-3||Level 3, 10V/m ; criteria A||| |||||EFT / Burst<br>~~OO~~||EN61000-4-4<br>~~OO~~||Level 3, 2KV ; criteria A<br>~~OO~~||| |||||Surge<br>a||EN61000-4-5||Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A||| |||||Conducted<br>~~es~~||EN61000-4-6<br>~~es~~||Level 3, 10V ; criteria A<br>~~es~~||| |||||Magnetic Field<br>~~GG~~||EN61000-4-8<br>~~GG~~||Level 4, 30A/m ; criteria A<br>~~GG~~||| ||**RAILWAY STANDARD**<br>es|||Compliance to<br>; Meet EN50155 / IEC60571 including IEC61373 for shock & vibration,<br>EN45545-2 for fire protection<br>EN50121-3-2 for EMC||||||| ||**MTBF**<br>es<br>~~Qe~~|||484.9K hrs min.<br>Telcordia SR-332 (Bellcore) ; 189.9K hrs min. MIL-HDBK-217F (25<br>)<br>℃<br>~~Qe~~||||||| ||**DIMENSION**<br>es<br>~~Qe~~<br>ee|||40*125.2*113.5mm (W*H*D)<br>~~Qe~~||||||| ||**PACKING**<br>0.76Kg;20psc/16.2Kg/1.16CUFT<br>℃<br>μ<br>μ<br>℃<br>℃<br>ee<br>1. All parameters NOT specially mentioned are measured at normal input (B:24Vdc , C:48Vdc , D:110Vdc )<br>, rated load and 25 __ of ambient temperature.<br>2. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated with a0.1_<br>f&47_<br>f parallel capacitor.<br>3. Tolerance: includes set up tolerance, line regulation and load regulation.<br>4. Derating may be needed under low input voltage. Please check the derating curve for more details.<br>5. 3 seconds max., please refer to peak loading curves.<br>6. The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with<br>the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies.”<br>(as available on http://;www.meanwell.com)<br>7. The ambient temperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>/1000m with fan models for operating altitude higher than2000m(6500ft).|||||||||| _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** ## 240W DIN Rail Type DC-DC Converter **==> picture [482 x 435] intentionally omitted <==** **----- Start of picture text -----**<br> Block Diagram<br>fosc : 80KHz<br>DC OK<br>EMI POWER RECTIFIERS +Vo<br>DC I/P FILTER SWITCHING & -V o<br>FILTER<br>FG DETECTION<br>PWM CIRCUIT<br>O.L.P.<br>CONTROL<br>O.V.P.<br>Remote<br>ON/OFF Control CURRENT P+<br>SHARE P-<br>Derating Curve Output derating VS input voltage<br>100<br>90<br>150<br>80 C/D Type<br>120 For 3 sec. (typ.)<br>100 70 B Type<br>60<br>Continuous<br>50<br>40<br>40<br>-40 -30 -20 -10 0 10 20 30 40 50 60 70 80 B Type: 16.8 21.6 33.6<br>(VERTICAL)<br>C Type: 33.6 43.2 67.2<br>D Type: 67.2 86.4 154<br>AMBIENT TEMPERATURE ( ℃ ) INPUT VOLTAGE (V)<br>LOAD (%) LOAD (%)<br>**----- End of picture text -----**<br> **==> picture [343 x 101] intentionally omitted <==** **----- Start of picture text -----**<br> Peak Loading<br>( 1 ) ( 2 )<br>360W 360W<br>(150% load) (150% load)<br>240W 120W<br>(100% load) 100 sec. 3 sec. (50% load) 10 sec. 3 sec.<br>**----- End of picture text -----**<br> _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** 240W DIN Rail Type DC-DC Converter ## **DC OK Relay Contact** |**DC OK Relay Contact**|| |---|---| |Contact Close|PSU turns on / DC OK.| |Contact Open|PSU turns off / DC Fail.| |Contact Ratings (max.)|30V/1A resistive load.| ## **Function Manual** ## **1. Current sharing** - (1) Parallel operation is available by connecting the units shown as below (P+,P- are connected mutually in parallel) : - (2) The voltage difference among each output should be minimized that less than 0.2V is required. - (3) The total output current must not exceed the value determined by the following equation (Output current at parallel operation) =(The rated current per unit) x (Number of unit) x 0.9. - (4) In parallel operation 4 units is the maximum, please consult the manufacture for other applications. - (5) When in parallel operation, the minimum output load should be greater than 3% of total output load. - (Min. load > 3% rated current per unit x number of unit) **==> picture [400 x 219] intentionally omitted <==** **----- Start of picture text -----**<br> + LOAD -<br>+V DC OK +V DC OK +V DC OK +V DC OK<br>-V P- P+ -V P- P+ -V P- P+ -V P- P+<br>Vo Adj. + Vo Adj. + Vo Adj. + Vo Adj. +<br>DC OK DC OK DC OK DC OK<br>PSU PSU PSU PSU<br>**----- End of picture text -----**<br> ## **2. Remote ON-OFF Control** - ※ The power supply can be turned ON-OFF by using the "Remote ON-OFF" function. Remote ON-OFF Output Status (TB1 PIN2,4) Open or 4 ~ 10VDC power supply ON Short or 0 ~ 0.8VDC power supply OFF _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** 240W DIN Rail Type DC-DC Converter ## **Input Fuse** There is one fuse connected in series to the positive input line, which is used to protect against abnormal surge. Fuse specifications of each model are shown as below. |Type|Fuse Type|Reference and Rating| |---|---|---| |B|Time-Lag|Conquer MST, 10A, 250V *2| |C|Time-Lag|Conquer MST, 6.3A, 250V *2| |D|Time-Lag|Conquer MST, 6.3A, 250V *1| ## **Input Under-Voltage Protection** If input voltage drops below Vimin, the internal control IC shuts down and there is no output voltage. It recovers automatically when input voltage reaches above Vimin,please refer to the cruve below. **==> picture [202 x 263] intentionally omitted <==** **----- Start of picture text -----**<br> DDR-240B-24<br>Vo 30<br>25<br>20<br>15 Turn On<br>Turn Off<br>10<br>5<br>0 16. 5 16.8 Vin<br>15 16 17 18 19 20<br>DDR-240D-24<br>Vo 30<br>25<br>20<br>15 Turn On<br>Turn Off<br>10<br>5<br>65 67.2<br>0 Vin<br>65 66 67 68 69 70<br>**----- End of picture text -----**<br> **==> picture [201 x 118] intentionally omitted <==** **----- Start of picture text -----**<br> DDR-240C-24<br>Vo 30<br>25<br>20<br>15 Turn On<br>Turn Off<br>10<br>5<br>33.6<br>0 Vin<br>31 33 34 35 36 37<br>**----- End of picture text -----**<br> ## **Input Reverse Polarity Protection** There is a MOSFET connected in series to the negative input line. If the input polarity is connected reversely, the MOSFET opens and there will be no output to protect the unit. ## **Inrush Current** Inrush current is suppressed by a resistor during the initial start-up, and then the resistor is bypassed by a MOSFET to reduce power consumption after accomplishing the start-up. _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** 240W DIN Rail Type DC-DC Converter ## **Hold-up Time** EN50155: 2007 version - B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load, Please refer to the table and curves show below for the hold up time specification. **==> picture [307 x 240] intentionally omitted <==** **----- Start of picture text -----**<br> Load 100% load 70% load other load<br>Model<br>B type (24Vin) 6ms min. 10ms min. figure 1,2<br>C type (48Vin) 8ms min. 11ms min. figure 3,4<br>D type (110Vin) 11ms min. 15ms min. figure 5,6<br>DDR-240B-24 DDR-240B-48<br>100% 100%<br>90% 90%<br>80% 80%<br>70% 70%<br>60% 60%<br>50% 50%<br>40% 40%<br>30% 30%<br>20% 20%<br>10% 10%<br>0% 0%<br>0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 0ms 10ms 20ms 30ms<br>TIME<br>(figure 1)<br>LOAD LOAD<br>**----- End of picture text -----**<br> **==> picture [166 x 252] intentionally omitted <==** **----- Start of picture text -----**<br> 100%<br>90%<br>80%<br>70%<br>60%<br>50%<br>40%<br>30%<br>20%<br>10%<br>0%<br>0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms<br>TIME<br>(figure 2)<br>DDR-240C-48<br>100%<br>90%<br>80%<br>70%<br>60%<br>50%<br>40%<br>30%<br>20%<br>10%<br>0%<br>0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms90ms 100ms<br>TIME<br>(figure 4)<br>LOAD<br>LOAD<br>**----- End of picture text -----**<br> ## DDR-240C-24 **==> picture [173 x 266] intentionally omitted <==** **----- Start of picture text -----**<br> 100%<br>90%<br>80%<br>70%<br>60%<br>50%<br>40%<br>30%<br>20%<br>10%<br>0%<br>0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms<br>TIME<br>(figure 3)<br>DDR-240D-24<br>100%<br>90%<br>80%<br>70%<br>60%<br>50%<br>40%<br>30%<br>20%<br>10%<br>0%<br>0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms 100ms 110ms 120ms 130ms<br>TIME<br>(figure 5)<br>LOAD<br>LOAD<br>**----- End of picture text -----**<br> ## DDR-240D-48 **==> picture [161 x 110] intentionally omitted <==** **----- Start of picture text -----**<br> 100%<br>90%<br>80%<br>70%<br>60%<br>50%<br>40%<br>30%<br>20%<br>10%<br>0%<br>0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms 100ms 110ms 120ms<br>TIME<br>(figure 6)<br>LOAD<br>**----- End of picture text -----**<br> **==> picture [168 x 9] intentionally omitted <==** **----- Start of picture text -----**<br> EN50155: 2017 version - Comply with S1 level<br>**----- End of picture text -----**<br> _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** 240W DIN Rail Type DC-DC Converter ## **Efficiency vs Load & Vin Curve** The efficiency vs load & Vin curves of each model are shown as below. ## DDR-240B-24 **==> picture [188 x 84] intentionally omitted <==** **----- Start of picture text -----**<br> 94%<br>92%<br>90%<br>88% 33.6Vdc<br>86% 24Vdc<br>84% 16.8Vdc<br>82%<br>80%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD<br>EFFICIENCY<br>**----- End of picture text -----**<br> ## DDR-240C-24 **==> picture [198 x 89] intentionally omitted <==** **----- Start of picture text -----**<br> 9 5 %<br>9 0 %<br>8 5 % 67.2V dc<br>8 0 % 48V dc<br>33.6V dc<br>7 5 %<br>7 0 %<br>1 0 % 2 0 % 3 0 % 4 0 % 5 0 % 6 0 % 7 0 % 8 0 % 9 0 % 1 0 0 %<br>LOAD<br>EFFICIENCY<br>**----- End of picture text -----**<br> ## DDR-240D-24 **==> picture [202 x 92] intentionally omitted <==** **----- Start of picture text -----**<br> 95%<br>90%<br>85%<br>154Vdc<br>80% 110Vdc<br>75% 67.2Vdc<br>70%<br>65%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD<br>EFFICIENCY<br>**----- End of picture text -----**<br> **==> picture [198 x 115] intentionally omitted <==** **----- Start of picture text -----**<br> DDR-240B-48<br>94%<br>92%<br>90%<br>88% 33.6Vdc<br>86% 24Vdc<br>84% 16.8Vdc<br>82%<br>80%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD<br>EFFICIENCY<br>**----- End of picture text -----**<br> ## DDR-240C-48 **==> picture [197 x 90] intentionally omitted <==** **----- Start of picture text -----**<br> 95%<br>90%<br>85% 62.4Vdc<br>48Vdc<br>80%<br>33.6Vdc<br>75%<br>70%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD<br>EFFICIENCY<br>**----- End of picture text -----**<br> ## DDR-240D-48 **==> picture [202 x 94] intentionally omitted <==** **----- Start of picture text -----**<br> 95%<br>90%<br>85% 154Vdc<br>110Vdc<br>80%<br>67.2Vdc<br>75%<br>70%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD<br>EFFICIENCY<br>**----- End of picture text -----**<br> _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** 240W DIN Rail Type DC-DC Converter ## **Immunity to Environmental Conditions** |Test method|Standard|Test conditions|Status| |---|---|---|---| |Cooling Test|EN 50155 section 12.2.3 (Column 2, Class TX)<br>EN 60068-2-1|Temperature: -40℃<br>Dwell Time: 2 hrs/cycle|No damage| |Dry Heat Test|EN 50155 section 12.2.4 (Column 2, Class TX)<br>EN 50155 section 12.2.4 (Column 3, Class TX & Column 4, Class TX)<br>EN 60068-2-2|Temperature: 70<br>/ 85<br>℃<br>℃<br>Duration: 6 hrs / 10min|PASS| |Damp Heat Test, Cyclic|EN 50155 section 12.2.5<br>EN 60068-2-30|Temperature: 25<br>~55<br>℃<br>℃<br>Humidity: 90%~100% RH<br>Duration: 48 hrs|PASS| |Vibration Test|EN 50155 section 12.2.11<br>EN 61373|Temperature: 19℃<br>Humidity: 65%<br>Duration: 10 mins|PASS| |Increased Vibration Test|EN 50155 section 12.2.11<br>EN 61373|Temperature: 19℃<br>Humidity: 65%<br>Duration: 5 hrs|PASS| |Shock Test|EN 50155 section 12.2.11<br>EN 61373|Temperature: 21<br>3<br>± ℃<br>Humidity: 65<br>5%<br>±<br>Duration: 30ms*18|PASS| |Low Temperature Storage Test|EN 50155 section 12.2.3 (Column 2, Class TX)<br>EN 60068-2-1|Temperature: -40℃<br>Dwell Time: 16 hrs|PASS| |Salt Mist Test|EN 50155 section 12.2.10 (Class ST4)|Temperature: 35<br>2<br>℃± ℃<br>Duration: 96 hrs|PASS| ## **EN45545-2 Fire Test Conditions** |Test Items<br>Hazard Level|Test Items<br>Hazard Level|Test Items<br>Hazard Level|Test Items<br>Hazard Level|Test Items<br>Hazard Level|Test Items<br>Hazard Level| |---|---|---|---|---|---| ||Items|Standard|HL1|HL2|HL3| |R22|Oxygen index test|EN 45545-2:2013<br>EN ISO 4589-2:1996|PASS|PASS|PASS| ||Smoke density test|EN 45545-2:2013<br>EN ISO 5659-2:2006|PASS|PASS|PASS| ||Smoke toxicity test|EN 45545-2:2013<br>NF X70-100:2006|PASS|PASS|PASS| |R24|Oxygen index test|EN 45545-2:2013<br>EN ISO 4589-2:1996|PASS|PASS|PASS| |R25|Glow-wire test|EN 45545-2:2013<br>EN 60695-2-11:2000|PASS|PASS|PASS| |R26|Vertical flame test|EN 45545-2:2013<br>EN 60695-11:2003|PASS|PASS|PASS| _File Name:DDR-240-SPEC 2019-08-02_ **- DDR 240 series** 240W DIN Rail Type DC-DC Converter **==> picture [486 x 670] intentionally omitted <==** **----- Start of picture text -----**<br> Mechanical Specification<br>Case No.265A-D Unit:mm<br>Terminal Pin No. Assignment (TB2,TB3)<br>Pin No. Assignment<br>1,2 DC output +Vo<br>5,6 DC output -Vo<br>3,4 DC OK Relay Contact<br>7,8 P+,P-<br>Top View<br>113.5<br>40<br>1 2 3 4<br>5 6 7 8<br>TB2<br>Vo Adj. + TB3<br>DC OK<br>TB1<br>1 2 3 4<br>Side View Front View Side View<br>Terminal Pin No. Assignment (TB1)<br>Pin No. Assignment<br>1 FG<br>2 DC input -Vin<br>3 DC input +Vin<br>4 Remote ON/OFF<br>Bottom View<br>Installation Instruction<br>This series fits DIN rail TS35/7.5 or TS35/15.<br>For installation details, please refer to the Instruction manual.<br>ADMISSIBLE DIN-RAIL:TS35/7.5 OR TS35/15<br>(For reference only. Not included with unit.)<br>Back View<br>Installation Manual<br>39<br>35<br>125.2<br>**----- End of picture text -----**<br> Please refer to : http://www.meanwell.com/manual.html _File Name:DDR-240-SPEC 2019-08-02_
Updated at April 22, 2026
About Novapart
Novapart is a B2B electronic component broker specialising in stock shortages and cost reduction. We source hard-to-find parts and identify compliant alternatives across a catalogue of 540,000+ components from 500+ manufacturers.
Learn more →Stock Shortage Specialist
When a component is unavailable, discontinued or has an unacceptable lead time, we tap into our network of vetted European and Asian distributors to source what you need — without compromising on quality or traceability.
Request a quote →Compliant Alternatives
We identify pin-to-pin, electrically equivalent substitutes that meet the same certifications (RoHS, AEC-Q100, REACH) as your original specification — validated against datasheets, not just part numbers. Often at a lower cost.
BOM Analysis service →