Image not available
Illustrative purposes only
DDR-480B-48
Isolated DIN Rail Mount DC/DC Converter, Railway, 2:1, 480 W, 1 Output, 48 V, 10 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: 128.5mm
- Width: 85.5mm
- Height: 125.2mm
- Input Ratio: 2:1
- Product Range: DDR-480 Series
- No. of Outputs: 1 Output
- Output Power Max: 480W
- Isolation Voltage: 4kV
- Output Regulation: -
- Input Voltage DC Max: 33.6V
- Input Voltage DC Min: 16.8V
- Input Voltage DC Nom: 24V
- Output Current - Output 1: 10A
- Output Current - Output 2: -
- Output Voltage - Output 1: 48V
- Output Voltage - Output 2: -
- Power Supply Applications: Railway
- DC / DC Converter Output Type: Fixed, Adjustable
| Delivery and price | |
|---|---|
| Units per pack | 5 |
| Price | 166.51 € |
| Current stock | 10+ |
| Lead time | 30 days |
Datasheet
**- DDR 480 series** 480W DIN Rail Type DC-DC Converter CB **IEC62368-1 UL62368** WL: **-1 AS/NZS62368-1** & ffl **TPTC004** C€ ■ ■ ℃ **==> 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-480-SPEC 2020-06-01_ **- DDR 480 series** 480W DIN Rail Type DC-DC Converter **SPECIFICATION** |**MODEL**<br>**OUTPUT**<br>**INPUT**<br>**OTHERS**<br>**NOTE**<br>**ENVIRONMENT**<br>**SAFETY &**<br>**EMC**<br>**(Note 7)**<br>**PROTECTION**<br>**FUNCTION**<br>a <br>~~po~~<br>a<br>———_———————e<br>Po<br>7 <br>Ce<br>—~~_—_—~~<br>CO<br>Re~~SE~~|es|es|**DDR-480B-12**<br>es|**DDR-480B-24**<br>es|**DDR-480B-48**<br>es|**DDR-480C-12**<br>QO|**DDR-480C-24**|**DDR-480C-48**<br>(Os|**DDR-480C-48**<br>(Os|**DDR-480D-12**<br>(Os<br>(OU|**DDR-480D-24**|**DDR-480D-48**| |---|---|---|---|---|---|---|---|---|---|---|---|---| ||**DC VOLTAGE**<br> es<br>a<br>~~re~~||12V<br>es<br>~~(QO~~<br>|24V<br>es<br>~~(QO~~|48V<br>es<br>~~(QO~~|12V<br>QO<br>~~(QO~~|24V<br>~~(QO~~|48V<br>(Os<br>~~(QO~~<br>QO||12V<br>(Os<br>~~(QO~~<br>(OU<br>QO|24V<br>~~(QO~~<br>(|48V<br>~~(QO~~| ||**RATED CURRENT**<br>a <br>~~QO~~<br>~~re~~a||33.4A<br> ~~(QO~~<br>~~QO~~<br>a|20A<br>~~(QO~~<br>~~QO~~<br>es|10A<br>~~(QO~~<br>~~QO~~<br>Qe|33.4A<br>~~(QO~~<br>~~QO~~<br>Qe|20A<br>~~(QO~~<br>~~QO~~|10A<br>~~(QO~~<br>~~QO~~<br>QO||33.4A<br>~~(QO~~<br>(OU<br>~~QO~~<br>QO|20A<br>~~(QO~~<br>~~QO~~<br>(|10A<br>~~(QO~~<br>~~QO~~| ||**CURRENT RANGE**<br>~~QO~~<br>~~re~~a||0 ~ 33.4A<br>~~QO~~<br>a|0 ~ 20A<br>~~QO~~<br>es|0 ~ 10A<br>~~QO~~<br>Qe<br>Qe|0 ~ 33.4A<br>~~QO~~<br>Qe<br>Qe|0 ~ 20A<br>~~QO~~|0 ~ 10A<br>~~QO~~<br>QO<br>QO||0 ~ 33.4A<br>~~QO~~<br>QO<br>QO|0 ~ 20A<br>~~QO~~<br>(<br>QO|0 ~ 10A<br>~~QO~~| ||**RATED POWER**<br>**PEAK**<br>**Note.5**<br>**5sec.**<br>**5sec.**<br>**CURRENT**<br>**POWER**<br>~~re~~a<br>~~ee~~<br>~~—————————~~<br>a<br>~~Re~~||400.8W<br>a<br>~~ee~~<br>~~—————————~~|480W<br>es<br>~~ee~~<br>~~—————————~~|480W<br>Qe<br>~~ee~~<br>Qe<br>~~—————————~~|400.8W<br>Qe<br>~~ee~~<br>Qe<br>~~—————————~~|480W<br>~~ee~~<br>~~—————————~~|480W<br>QO<br>~~ee~~<br>QO<br>~~—————————~~||400.8W<br>QO <br>~~ee~~<br>QO<br>~~—————————~~|480W<br> (<br>~~ee~~<br>QO<br>~~—————————~~|480W<br>~~ee~~<br>~~—————————~~| |||**5sec.**<br>**CURRENT**<br>~~ee~~<br>~~—————————~~|50.1A<br>~~ee~~<br>~~—————————~~|30A<br>~~ee~~<br>~~—————————~~|15A<br>~~ee~~<br>Qe<br>~~—————————~~|50.1A<br>~~ee~~<br>Qe<br>~~—————————~~|30A<br>~~ee~~<br>~~—————————~~|15A<br>~~ee~~<br>QO<br>~~—————————~~||50.1A<br>~~ee~~<br>QO<br>~~—————————~~|30A<br>~~ee~~<br>QO<br>~~—————————~~|15A<br>~~ee~~<br>~~—————————~~| |||**5sec.**<br>**POWER**<br>~~—————————~~<br>a<br>~~Re~~|12Vo: 601.2W, 24Vo / 48Vo : 720W<br>~~—————————~~<br>eseses<br>(<br>|||||||||| ||**RIPPLE & NOISE (max.) Note.2**<br>~~—————————~~<br>a<br>~~es~~<br>~~Re~~||100mVp-p<br>~~—————————~~<br>~~es~~<br>ee|120mVp-p<br>~~—————————~~<br>~~es~~<br>es<br>es|150mVp-p<br>~~—————————~~<br>~~es~~<br>es<br>es|100mVp-p<br>~~—————————~~<br>~~es~~<br>es<br>Qe|120mVp-p<br>~~—————————~~<br>~~es~~|150mVp-p<br>~~—————————~~<br>~~es~~<br>QO||100mVp-p<br>~~—————————~~<br>~~es~~<br>(<br>QO|120mVp-p<br>~~—————————~~<br>~~es~~|150mVp-p<br>~~—————————~~<br>~~es~~| ||**VOLTAGE ADJ. RANGE**<br>~~es~~<br>~~Re~~||12 ~ 14V<br>~~es~~<br>ee|24 ~ 28V<br>~~es~~<br>es<br>es|48~ 56V<br>~~es~~<br>es<br>es|12 ~ 14V<br>~~es~~<br>es<br>Qe|24 ~ 28V<br>~~es~~|48~ 56V<br>~~es~~<br>QO||12 ~ 14V<br>~~es~~<br>(<br>QO|24 ~ 28V<br>~~es~~|48~ 56V<br>~~es~~| ||**VOLTAGE TOLERANCE Note.3**<br>~~Re~~<br>ee<br>~~po~~||±1.0%<br>ee<br>ee~~QQ~~|±1.0%<br>es<br>es<br>~~QQ~~<br>~~GQ~~|±1.0%<br>es<br>es<br>~~QQ~~<br>~~GQ~~|±1.0%<br>es<br>Qe<br>~~QQ~~<br>~~GQ~~|±1.0%<br>~~QQ~~|±1.0%<br>QO<br>~~QQ~~<br>QO||±1.0%<br>(<br>QO<br>~~QQ~~<br>QO|±1.0%<br>~~QQ~~|±1.0%<br>~~QQ~~| ||**LINE REGULATION**<br>ee<br>~~ee~~<br>~~po~~||±0.5%<br>ee~~QQ~~<br>~~ee~~|±0.5%<br>~~QQ~~<br>~~ee~~<br>~~GQ~~|±0.5%<br>~~QQ~~<br>~~ee~~<br>~~GQ~~|±0.5%<br>~~QQ~~<br>~~ee~~<br>~~GQ~~|±0.5%<br>~~QQ~~<br>~~ee~~|±0.5%<br>~~QQ~~<br>~~ee~~<br>QO||±0.5%<br>~~QQ~~<br>~~ee~~<br>QO|±0.5%<br>~~QQ~~<br>~~ee~~|±0.5%<br>~~QQ~~<br>~~ee~~| ||**LOAD REGULATION**<br>~~ee~~<br>~~po~~||±1.0%<br>~~ee~~|±1.0%<br>~~ee~~<br>~~GQ~~|±1.0%<br>~~ee~~<br>~~GQ~~|±1.0%<br>~~ee~~<br>~~GQ~~|±1.0%<br>~~ee~~|±1.0%<br>~~ee~~<br>QO||±1.0%<br>~~ee~~<br>QO|±1.0%<br>~~ee~~|±1.0%<br>~~ee~~| ||**SETUP, RISE TIME**<br>~~po~~<br>a<br>a||500ms, 60ms<br>~~GQ~~<br>QO|||||||||| ||**HOLD UP TIME (Typ.)**<br>a<br>———_———————e||Please refer to page 6 hold up time (Load de-rating curve )<br>———_———————e|||||||||| ||**VOLTAGE**<br>**Note.4**<br>**RANGE**<br>a<br>———_———————e<br>Po|**CONTINUOUS**<br>**100ms**<br>a<br>———_———————e<br>~~(OO~~<br>Po|16.8 ~ 33.6Vdc<br>14.4 ~ 16.8Vdc<br>———_———————e<br>~~(OO~~|||33.6 ~ 67.2Vdc<br>28.8 ~ 33.6Vdc<br>———_———————e<br>~~(OO~~||||67.2 ~ 154Vdc<br>66 ~ 67.2Vdc<br>———_———————e<br>~~(OO~~||| ||**EFFICIENCY (Typ.)**<br>———_———————e<br>~~(OO~~<br>Po<br>ee||90%<br>———_———————e<br>~~(OO~~<br>~~Qe~~|91%<br>———_———————e<br>~~(OO~~<br>~~Qe~~|90.5%<br>———_———————e<br>~~(OO~~<br>~~Qe~~|91%<br>———_———————e<br>~~(OO~~<br>~~Qe~~|92%<br>———_———————e<br>~~(OO~~<br>~~Qe~~|92%<br>———_———————e<br>~~(OO~~<br>~~Qe~~||91%<br>———_———————e<br>~~(OO~~<br>~~Qe~~|92%<br>———_———————e<br>~~(OO~~<br>~~Qe~~|93%<br>———_———————e<br>~~(OO~~<br>~~Qe~~| ||**DC CURRENT (Typ.)**<br>Po<br>ee<br>ae||23A @24Vdc<br>~~Qe~~|||11.2A @48Vdc<br>~~Qe~~||||5A @110Vdc<br>~~Qe~~||| ||**INRUSH CURRENT (Typ.)**<br>ee<br>ae||30A<br>~~Qe~~|||||||||| ||**INTERRUPTION OF VOLTAGE SUPPLY**<br>ae<br>a||EN50155: 2017-<br>comply with S2 level (10ms)@ full load<br>B/C/D type|||||||||| ||**OVERLOAD**<br>**Note.5**<br>a<br>||Normally works within 150% rated output power for more than 5 seconds and then constant current protection 105~135% rated<br>output power with auto-recovery<br>~~RO~~|||||||||| ||**OVER VOLTAGE**<br>||Protection type : Shut down o/p voltage, re-power on to recover<br>57.6 ~ 65V<br>57.6 ~ 65V<br>57.6 ~ 65V<br>28.8 ~ 35V<br>28.8 ~ 35V<br>28.8 ~ 35V<br>14.4 ~ 17.5V<br>14.4 ~ 17.5V<br>14.4 ~ 17.5V<br>~~RO~~|||||||||| ||**OVER TEMPERATURE**<br><br>a<br>Ce||Shut down o/p voltage, re-power on to recover<br>~~RO~~|||||||||| ||**UNDER VOLTAGE LOCKOUT**<br>**REVERSE POLARITY**<br><br>a<br>Ce<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>By internal, MOSFET, no damage, recovers automatically after fault condition is removed<br>~~RO~~|||||||||| ||**DC OK REALY CONTACT RATINGS (max.)** <br> <br>a<br>~~_—_—~~||30Vdc/1A resistive load<br> ~~RO~~<br>~~en~~|||||||||| ||**CURRENT SHARING**<br>a <br>~~_—_—~~<br>CO||Up to 1920W (3+1 units). Please refer to the Function Manual<br> ~~en~~<br>|||||||||| ||**REMOTE ON-OFF CONTROL**<br>~~_—_—~~<br>CO||Please refer to the Function Manual<br>|||||||||| ||**WORKING TEMP.**<br>~~_—_—~~<br>CO~~a~~||-40 ~ +80<br>(Refer to "Derating Curve")<br>℃<br>~~a~~|||||||||| ||**WORKING HUMIDITY**<br>~~a~~<br>~~a~~||5 ~ 95% RH non-condensing<br>~~a~~<br>~~a~~|||||||||| ||**STORAGE TEMP., HUMIDITY**<br>~~a~~<br>~~ee~~||-40 ~ +85, 5 ~ 95% RH non-condensing<br>~~a~~<br>~~ee~~|||||||||| ||**TEMP. COEFFICIENT**<br>~~ee~~<br>a||±<br>℃<br>℃<br>0.03%/<br>(0 ~ 55<br>)<br>~~ee~~|||||||||| ||**VIBRATION**<br>a<br>~~CP~~||Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC61373<br>~~CP~~|||||||||| ||**OPERATING ALTITUDE Note.6** <br>~~CP~~<br>a||5000<br>Ⅱ<br>meters / OVC<br>~~CP~~|||||||||| ||**SAFETY STANDARDS**<br>a<br>as<br>ee||UL 62368-1, IEC 62368-1,<br>,<br>approved<br>AS/NZS 62368-1 EAC TP TC 004|||||||||| ||**WITHSTAND VOLTAGE**<br>as<br>ee||I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc|||||||||| ||**ISOLATION RESISTANCE**<br>**EMC IMMUNITY**<br>**EMC EMISSION**<br>**RAILWAY STANDARD**<br>ee<br>a <br>a<br>BP||I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25<br>/ 70% RH<br>℃<br>|||||||||| ||||**Parameter**<br> ~~es~~|||**Standard**<br>~~es~~|||**Test Level / Note**<br>~~es~~|||| ||||Conducted<br>~~a~~|||EN55032 (CISRP32)<br>~~a~~|||Class A<br>~~a~~|||| ||||Radiated<br>~~a~~|||EN55032 (CISRP32)<br>~~a~~|||Class B<br>~~a~~|||| ||||Voltage Flicker<br>~~a~~<br>a|||EN61000-3-3<br>~~a~~<br>|||-----<br>~~a~~<br>|||| ||||Harmonic Current<br>~~a~~<br>a|||-----<br>~~a~~<br>|||-----<br>~~a~~<br>|||| ||||EN55035<br>a~~RT~~|||||||||| ||||**Parameter**<br>a|||**Standard**|||**Test Level / Note**|||| ||||ESD<br>a|||EN61000-4-2|||Level 3, 8KV air ; Level 3, 6KV contact; criteria A|||| ||||Radiated<br>a|||EN61000-4-3|||Level 3, 10V/m ; criteria A|||| ||||EFT / Burst<br>~~ee~~|||EN61000-4-4<br>~~ee~~|||Level 3, 2KV ; criteria A<br>~~ee~~|||| ||||Surge<br>a|||EN61000-4-5|||Level 3, 1KV/Line-Line ;Level 3, 2KV/Line-Line-FG ;criteria A|||| ||||Conducted<br>a<br>BP|||EN61000-4-6|||Level 3, 10V ; criteria A|||| ||||Magnetic Field<br>BP|||EN61000-4-8|||Level 4, 30A/m ; criteria A|||| ||||Compliance to<br>; Meet EN50155 / IEC60571 including IEC61373 for shock & vibration,<br>EN45545-2 for fire protection<br>EN50121-3-2 for EMC<br>BP|||||||||| ||**MTBF**<br>a<br>ee||280.0<br>101.7<br>K hrs min.<br>Telcordia SR-332 (Bellcore) ;<br>K hrs min. MIL-HDBK-217F (25<br>)<br>℃|||||||||| ||**DIMENSION**<br>ee<br>Re||85.5*125.2*128.5mm (W*H*D)<br>|||||||||| ||**PACKING**<br>ee<br>Re||1 375 g<br>. K 8pcs/12Kg/0.98CUFT<br>;<br>|||||||||| ||℃<br>℃<br>℃<br>Re~~SE~~<br>2. Ripple & noise are measured at20MHz of bandwidth by using a 12" twisted pair-wire terminated witha0O.<br>&4 _<br>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. 150% 5 seconds, please refer to peak loading curves.<br>6. The ambienttemperature derating of 3.5<br>/1000m with fanless models and of<br>5<br>+/1000m with fan models for operating altitude higher than2000m(6500ft).<br>7. 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)|||||||||||| _File Name:DDR-480-SPEC 2020-06-01_ **- DDR 480 series** 480W DIN Rail Type DC-DC Converter ## **Block Diagram** **==> picture [434 x 190] intentionally omitted <==** **----- Start of picture text -----**<br> fosc : 65KHz<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>**----- End of picture text -----**<br> ## **Derating Curve** **==> picture [218 x 161] intentionally omitted <==** **----- Start of picture text -----**<br> 150<br>For 5 sec. (typ.)<br>100<br>Continuous<br>For others<br>For DDR-480B/C/D-12 & DDR-480D-24/48<br>40<br>-40 -20 0 20 40 55 60 80<br>(VERTICAL)<br>AMBIENT TEMPERATURE ( ℃ )<br>LOAD (%)<br>**----- End of picture text -----**<br> ## **Output derating VS Input Voltage** **==> picture [210 x 162] intentionally omitted <==** **----- Start of picture text -----**<br> 100<br>90<br>80 C/D Type<br>70 B Type<br>60<br>50<br>40<br>B Type: 16.8 21.6 33.6<br>C Type: 33.6 43.2 67.2<br>D Type: 67.2 86.4 154<br>INPUT VOLTAGE (V)<br>LOAD (%)<br>**----- End of picture text -----**<br> _File Name:DDR-480-SPEC 2020-06-01_ **- DDR 480 series** 480W DIN Rail Type DC-DC Converter ## **Peak Loading** **==> picture [283 x 82] intentionally omitted <==** **----- Start of picture text -----**<br> 601.2W for 12Vo<br>720W for others<br>(150% load)<br>400.8W for 12Vo<br>480W for others<br>100 sec. 5 sec.<br>(100% load)<br>**----- End of picture text -----**<br> ## **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 [416 x 206] intentionally omitted <==** **----- Start of picture text -----**<br> + -<br>LOAD<br>+Vo -Vo P+ P- +Vo -Vo P+ P- +Vo -Vo P+ P- +Vo -Vo P+ P-<br>DC OK DC OK DC OK DC OK<br>DC OK DC OK DC OK DC OK<br>Vo Adj. + Vo Adj. + Vo Adj. + Vo Adj. +<br>PSU1 PSU2 PSU3 PSU4<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<br>(TB1 PIN2,4)|Output Status| |---|---| |Open or 5.5 ~ 10VDC|power supply ON| |Short or 0 ~ 0.8VDC|power supply OFF| _File Name:DDR-480-SPEC 2020-06-01_ **- DDR 480 series** ## 480W 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 *5| |C|Time-Lag|Conquer MST, 8A, 250V *3| |D|Time-Lag|Conquer MST, 6.3A, 250V *2| ## **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 [477 x 131] intentionally omitted <==** **----- Start of picture text -----**<br> Turn On<br>Turn Off<br>DDR-480B-24 DDR-480C-24 DDR-480D-24<br>Vo 30 Vo 30 Vo 30<br>25 25 25<br>20 20 20<br>15 15 15<br>10 10 10<br>5 5 5<br>16. 5 16.8 33 33.6 65 67.2<br>0 Vin 0 Vin 0 Vin<br>15 16 17 18 19 20 31 33 34 35 36 37 65 66 67 68 69 70<br>**----- End of picture text -----**<br> ## **Input Reverse Polarity Protection** There are two MOSFETs connected in series to the negative input line. If the input polarity is connected reversely, the MOSFETs open 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 MOSFETs to reduce power consumption after accomplishing the start-up. Inrush current limit Power start Normal current _File Name:DDR-480-SPEC 2020-06-01_ **- DDR 480 series** 480W DIN Rail Type DC-DC Converter ## **Hold-up Time** EN50155:2017 version- B/C/D type comply with S2 level (10ms) @ full load , please refer to the table and curves show below for the hold up time specification. |Model<br>Load|100% load<br>|70% load|other load| |---|---|---|---| |B type (24Vin)|10ms min.|16ms min.|figure 1,2,3| |C type (48Vin)|11ms min.|17ms min.|figure 4,5,6| |D type (110Vin)|16ms min.<br>|24ms min.|figure 7,8,9| ## DDR-480B-12 **==> picture [225 x 402] 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 130ms 140ms<br>TIME figure 1<br>DDR-480B-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 80ms 90ms 100ms 110ms 120ms<br>TIME figure 3<br>DDR-480C-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<br>TIME figure 5<br>DDR-480D-12<br>100%<br>90%<br>80%<br>70%<br>60%<br>50%<br>40%<br>30%<br>20%<br>10%<br>0% 0ms 10ms 20ms 30ms 40ms 50ms 60ms 70ms 80ms 90ms 100ms 110ms 12 0ms 130ms 140ms 150ms 160ms 170ms 180ms 190ms<br>TIME figure 7<br>LOAD<br>LOAD<br>LOAD<br>LOAD<br>**----- End of picture text -----**<br> ## DDR-480B-24 **==> picture [225 x 402] 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 figure 2<br>DDR-480C-12<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 140ms 150ms 160ms<br>TIME figure 4<br>DDR-480C-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 80ms 90ms 100ms 110ms 120ms 130ms<br>TIME figure 6<br>DDR-480D-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 140ms 150ms 160ms<br>TIME figure 8<br>LOAD<br>LOAD<br>LOAD<br>LOAD<br>**----- End of picture text -----**<br> **==> picture [209 x 97] intentionally omitted <==** **----- Start of picture text -----**<br> DDR-480D-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 80ms 90ms 100ms 110ms 120ms 130ms 140ms 150ms 160ms<br>TIME figure 9<br>LOAD<br>**----- End of picture text -----**<br> _File Name:DDR-480-SPEC 2020-06-01_ **- DDR 480 series** 480W DIN Rail Type DC-DC Converter ## **Efficiency vs Load & Vin Curve** The efficiency vs load & Vin curves of each model are shown as below. **==> picture [478 x 589] intentionally omitted <==** **----- Start of picture text -----**<br> DDR-480B-12 DDR-480B-24<br>95% 95%<br>90% 90%<br>85% 154Vdc 85% 33.6Vdc<br>80% 110Vdc 80% 24Vdc<br>67.2Vdc 16.8Vdc<br>75% 75%<br>70% 70%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD LOAD<br>DDR-480B-48 DDR-480C-12<br>95% 95%<br>90% 90%<br>85% 33.6Vdc 85% 24Vdc<br>24Vdc 33.6Vdc<br>80% 80%<br>16.8Vdc 16.8Vdc<br>75% 75%<br>70% 70%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD LOAD<br>DDR-480C-24<br>95% DDR-480C-48<br>95%<br>90%<br>90%<br>85% 67.2Vdc 85% 62.4Vdc<br>80% 48Vdc 80% 48Vdc<br>33.6Vdc 33.6Vdc<br>75% 75%<br>70% 70%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD LOAD<br>DDR-480D-12 DDR-480D-24<br>95% 95%<br>90% 90%<br>85% 48Vdc 85% 154Vdc<br>67.2Vdc 110Vdc<br>80% 80%<br>33.6Vdc 67.2Vdc<br>75% 75%<br>70% 70%<br>10% 20% 30% 40% 50% 60% 70% 80% 90% 100% 10% 20% 30% 40% 50% 60% 70% 80% 90% 100%<br>LOAD LOAD<br>DDR-480D-48<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 EFFICIENCY<br>EFFICIENCY EFFICIENCY<br>EFFICIENCY EFFICIENCY<br>EFFICIENCY EFFICIENCY<br>EFFICIENCY<br>**----- End of picture text -----**<br> _File Name:DDR-480-SPEC 2020-06-01_ **- DDR 480 series** 480W 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: 48 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-480-SPEC 2020-06-01_ **- DDR 480 series** **==> picture [65 x 39] intentionally omitted <==** **==> picture [439 x 17] intentionally omitted <==** **----- Start of picture text -----**<br> 480W DIN Rail Type DC-DC Converter - series<br>**----- End of picture text -----**<br> **==> picture [511 x 703] intentionally omitted <==** **----- Start of picture text -----**<br> Mechanical Specification<br>Case No. 984F Unit:mm<br>Terminal Pin No. Assignment (TB2)<br>Pin No. Assignment<br>1,2 DC output +Vo<br>3,4 DC output -Vo<br>5,6 DC OK Relay Contact<br>7,8 P+,P-(Current sharing)<br>129.2 Top View<br>1 2 3 4 5 6 7 8<br>TB2<br>DC OK<br>DC OK<br>Vo Adj. +<br>1 2 3 4<br>TB1<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>85.5<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>Please refer to : http://www.meanwell.com/manual.html<br>36<br>35<br>125.2<br>**----- End of picture text -----**<br> _File Name:DDR-480-SPEC 2020-06-01_
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 →