# Isolated DIN Rail Mount DC/DC Converter, Railway, 2:1, 240 W, 1 Output, 24 V, 10 A

![Product image](https://novapart.co/image/farnell:3002969/)

**URL**: https://novapart.co/products/DDR-240D-24/isolated-din-rail-mount-dc-converter-railway-21
**SKU**: DDR-240D-24
**Manufacturer**: MEAN WELL
**Category**: Power & Line Protection || Power Supplies || DC / DC Converters || Isolated DIN Rail Mount DC / DC Converters
**Price**: €107.8200
**Stock**: 10+
**Lead Time**: 134 days (indicative)

## Description

No. of Outputs:1 Output; Output Power Max:240W; Output Voltage - Output 1:24V; Output Current - Output 1:10A; Output Voltage - Output 2:-; Output Current - Output 2:-; Output Voltage - Output 3

## Specifications

| Parameter | Value |
|---|---|
| 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 | 10A |
| Output Current - Output 2 | - |
| Output Voltage - Output 1 | 24V |
| Output Voltage - Output 2 | - |
| Power Supply Applications | Railway |
| Dc / Dc Converter Output Type | Fixed, Adjustable |

## Datasheet

📄 [Download PDF](https://novapart.co/datasheet/farnell:3002969/)

240W DIN Rail Type DC ~~-~~ DC Converter 

~~ee~~ 

## D D R ~~™~~ 2 4 0 series 

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## FAL C € 

## M@ Features 

- Compliance to EN50155 and EN45545- ~~2~~ railway standard 

- Width only 40mm 

- 2:1 wide input range 

- ~~-~~ 40~+70°C wide working temperature 

- 150% peak load capability 

- Current sharing up to 9I60W(3+1) 

- DC output adjustable 

## c ~~e~~ ) A 2 ( ~~S~~ e 

## HM Applications 

   - Bus,tram,metro or railway system 

   - Industrial control system 

   - Semi- ~~c~~ onductor fabrication equipment 

   - Factory automation 

   - Electro ~~-~~ mechanical 

   - Wireless network 

   - Telecom or datacom system 

- Cooling by free air convection 

- Can be installed on DIN rail TS- ~~3~~ 5/7 ~~.~~ 5 or 15 

- Protections: Short circuit / Overload / Over voltage / Over temperature / Input reverse polarity/ Input under voltage protection 

- 4KVdc I/O isolation(Reinforced isolation) 

- DC OK relay contact 

- Remote ON ~~-~~ OFF control 

- 3 years warranty 

## @ Description 

DDR- ~~2~~ 40 series is a 240W DIN Rail type DC ~~-~~ DC converter with main features including DIN rail ~~-~~ type easy installation, ultra slim width (40mm), 2:1 wide input voltage, fanless design, ~~-~~ 40~+70°C wide operating temperature, 4KVdc I/O isolation, 150% peak load, current sharing,DC OK, adjustable output voltage and full protective functions. This series of models has various input options: 16.8~33.6V /33.6~67.2V /67.2~154V and two output options: 24V /48V and can be used for industrial & railway control, security control, communication system and other fields. Suitable applications include to DC buck/boost regulator, increasing system insulation level and voltage drop compensation along cable...etc. 

## HM Model Encoding DDR - 240B - 24 

## LL Output voltage(24/48Vdc) 

Input voltage (B:16 ~~.~~ 8~33 ~~.~~ 6Vdc, C:33 ~~.~~ 6~67 ~~.~~ 2Vdc, D:67 ~~.~~ 2~154Vdc) Rated wattage 

Series name 

File Name:DDR-240 ~~-~~ SPEC 2018 ~~-~~ 07 ~~-~~ 16 

D D R ~~7~~ 2 4 0 series 

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## SPECIFICATION 

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OUTPUT<br>RANGE otea|t100ms_— | 144 = 16.8Vdo | 28.8 -33.6Ve |B O7.ZVC<br>INPUT<br>Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135%<br>PROTECTION<br>24Vin (B - type) :Power ON=16.8V, in (C - : 233.6V, 110Vin (D - type):Power ON67.2V,<br>ENVIRONMENT<br>EWC EMISSION<br>SAFETY & [VoltageFlicker f ENGHO D- S e<br>EMC amonicGurent = SC SCS C~—~—SSSSSOSCOCSCSC‘C*d<br>EN50121 -3-2 for EMC<br>OTHERS [DIMENSION | 40"125.21135mmWHD)<br>2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair - wire terminated with a 0 . 1 « f & 47 «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>NOTE 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://ww w .meanwell . com)<br>7. The ambient temperature derating of 3 . 5°C/1000m with fanless models and of 5‘C/1000m with fan models for operating altitude higher than2000m(6500ft).<br>———<br>**----- End of picture text -----**<br>


File Name:DDR-240-SPEC 2018 ~~-~~ 07 ~~-~~ 16 

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MEAN WELL} 240W DIN Rail Type DC ~~-~~ DC Converter D D R ~~™~~ 2 4 0 series ~~Dn~~ 

## m Efficiency vs Load & Vin Curve 

The efficiency vs load & Vin curves of each model are shown as below. 

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94% 94%<br>> 92% > 92%<br>© 90% © 90%<br>a 88% == 33,6Vde a 88% —*33.6vde<br>oO 86% B= 24Vde oO 86% BB 24Vde<br>uo °% i 16.8Vde ma 34% ii 16.8Vde<br>LL 82% LL 82%<br>LL 50% LY 55%<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>595% + 95%<br>Ds0% S 90%<br>UW 35% ee 67.2Vde LW g5% —e52.4Vde<br>(S) c (S) —™—48Vdc<br>i 80% e e ie 80% b= 33.6Vde<br>Lu75% LL 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>95% 95%<br>25 20% rs) 90%<br>me” meen 15 4Vde Frat 85% —e— 154Vde<br>oO** —m—110Vde © 20% —B110vde<br>iL75% b= 67.2Vde ri 8 67.2Vde<br>tty70% th 75%<br>65% 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>**----- End of picture text -----**<br>


File Name:DDR-240 ~~-~~ SPEC 2018 ~~-~~ 07 ~~-~~ 16 

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## Links

- [View this product on Novapart](https://novapart.co/products/DDR-240D-24/isolated-din-rail-mount-dc-converter-railway-21)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/mean-well/ddr-240d-24/dc-dc-converter-24v-10a/dp/3002969)
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