---
lang: "en"
title: "Industrial ultra-slim DIN rail DC-DC converter; input 16.8-33.6Vdc; single output 24-28Vdc at 15A"
sku: "DDR-240B-24"
canonical_url: "https://shop.marcomweb.it/en/dc-dc-converter/industrial-ultra-slim-din-rail-dc-dc-converter-input-168-336vdc-single-output-24-28vdc-at-15a"
brand: "MARCOM S.r.l."
end_of_life: "false"
---

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DDR-240B-24: Industrial ultra-slim DIN rail DC-DC converter; input 16.8-33.6Vdc; single output 24Vdc at 15A

The DDR-240 series is a 240W DIN rail type DC-DC converter with key features such as easy DIN rail installation, ultra-slim width (40mm), 2:1 wide input voltage, fanless design, wide operating temperature -40~+70℃, 4KVdc I/O isolation, 150% peak load capability, current sharing, DC OK, adjustable output voltage, and complete protection functions.

 

This series of models has several 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 and railway control, security control, communication systems, and other fields.

 

Suitable applications include DC buck/boost regulators, increasing system isolation levels, and compensating for voltage drops along cables, etc.

 

## Technical Features

 

- ITE and railway safety
- 2:1 wide input range
- 150% peak load capability
- Protections: 

- Short circuit
- Overload
- Overvoltage
- Overtemperature
- DC input reverse polarity
- DC input undervoltage
- Cooling by free air convection
- 4000VDC I/O isolation (reinforced insulation)
- Wide operating temperature -40~+70 oC
- Adjustable DC output
- DC OK relay contact and remote ON/OFF (DDR-240/480 only)
- Current sharing up to 1920W
- (3+1: 960W for DDR-240, 1920W for DDR-480)
- Installable on DIN rail TS-35/7.5 or 15
- Dimensions (WxHxD): DDR-240 40x 125.2x 113.5mm

---

Source: https://shop.marcomweb.it/en/dc-dc-converter/industrial-ultra-slim-din-rail-dc-dc-converter-input-168-336vdc-single-output-24-28vdc-at-15a

MARCOM S.r.l. — a trusted supplier for industrial automation and building automation.