MEAN WELL DDR-240 Series 240W DIN Rail Type DC-DC Converter Owner’s Manual

: June 3, 2024
: MEAN WELL

Table of Contents

MEAN WELL DDR-240 Series 240W DIN Rail Type DC-DC Converter
Features
Applications
Description
Model encoding
Specification
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MEAN WELL DDR-240 Series 240W DIN Rail Type DC-DC Converter

MEAN-WELL-DDR-240-Series-240W-DIN-Rail-Type-DC-DC-Converter-PRODUCT-
IMAGE

Features

Compliance to BS EN/EN50155 and BS EN/EN45545-2 railway standard
Width only 40mm
2:1 wide input range
-40-+70C wide working temperature
150% peak load capability
Current sharing up to 960W(3+1)
DC output adjustable
Cooling by free air convection
Can be installed on DIN rail TS-35/7.5 or 15
Protections: Short circuit/ Overload/Over voltage / Over temperature/ Input reverse polarity/ Input under voltage protection
4KVdc /O isolation(Reinforced isolation)
DC OK relay contact
Remote ON-OFF control
3 years warranty

Applications

Bus,tram, metro or railway system
Industrial control system
Semi-conductor fabrication equipment
Factory automation
Electro-mechanical
Wireless network
Telecom or datacom system

GTIN CODE
MW Search: https://www.meanwell.com/serviceGTiIN.asp

Description

DDR-240 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, finless design, -40~+70C wide operating temperature, 4KVdc /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.

Model encoding

MEAN-WELL-DDR-240-Series-240W-DIN-Rail-Type-DC-DC-
Converter-01

Specification

MODEL| DDR-240B-24| DDR-240B-48| DDR-240C-24| DDR- 240C-48| DDR-240D-24| DDR-240D-48
---|---|---|---|---|---|---

OUTPUT

| DC VOLTAGE| 24V| 48V| 24V| 48V| 24V| 48v
RATED CURRENT| 10A| 5A| 10A| 5A| 10A| 5A
CURRENT RANGE| 0 ~ 10A| 0 ~ 5A| 0 ~ 10A| 0 ~ 5A| 0 ~ 10A| 0 ~ 5A
RATED POWER| 240W| 240W| 240W| 240W| 240W| 240W
PEAK| CURRENT| 15A| 7.5A| 15A| 7.5A| 15A| 7.5A
POWER **Note.5| 360W (3sec.)
RIPPLE & NOISE (max.) **Note.2| 80mVp-p| 100mVp-p| 80mVp-p| 100mVp-p| 80mVp-p| 100mVp-p
VOLTAGE ADJ. RANGE| 24 ~ 28V| 48 ~ 56V| 24 ~ 28V| 48 ~ 56V| 24 ~ 28V| 48~ 56V
VOLTAGE TOLERANCE Note.3| ±1.0%| ±1.0%| ±1.0%| ±1.0%| ±1.0%| ±1.0%
LINE REGULATION| ±0.5%| ±0.5%| ±0.5%| ±0.5%| ±0.5%| ±0.5%
LOAD REGULATION| ±1.0%| ±1.0%| ±1.0%| ±1.0%| ±1.0%| ±1.0%
SETUP, RISE TIME| 500ms, 60ms
HOLD UP TIME (Typ.)| Please refer to page 6 Hold up Time( Load de-rating curve )

INPUT

| VOLTAGE RANGE Note.4| CONTINUOUS| 16.8 ~ 33.6Vdc| 33.6 ~ 67.2Vdc| 67.2 ~ 154Vdc
100ms| 14.4 ~ 16.8Vdc| 28.8 ~33.6Vdc| 66 ~ 67.2Vdc
EFFICIENCY (Typ.)| 90%| 90%| 91%| 92%| 92%| 92.5%
DC CURRENT (Typ.)| 11.2A @24Vdc| 5.6A @48Vdc| 2.5A @110Vdc
INRUSH CURRENT (Typ.)| 30A
INTERRUPTION OF VOLTAGE SUPPLY| EN50155:2007-B/C- type comply with S2 level (10ms)@ 70% load ; D-type comply with S2 level (10ms)@ full load
EN50155:2017-Comply with S1 level

PROTECTION

| OVERLOAD **Note.5| Normally works within 150% rated output power for more than 3 seconds and then constant current protection 105~135% rated output power with auto-recovery
OVER VOLTAGE| 28.8 ~ 35V| 57.6 ~ 65.0V| 28.8 ~ 35V| 57.6 ~ 65V| 28.8 ~ 35V| 57.6 ~ 65V
Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE| Shut down o/p voltage, re-power on to recover
UNDER VOLTAGE LOCKOUT**| 24Vin (B – type) :Power ON≥16.8V ,

OFF≤16.5V

| 48Vin (C – type) :Power ON≥33.6V ,

OFF≤33V

| 110Vin (D – type):Power ON≥67.2V ,

OFF≤65V

FUNCTION

| DC OK REALY CONTACT RATINGS (max.)| 30Vdc/1A resistive load
CURRENT SHARING| Up to 960W (3+1 units). Please refer to the Function Manual
REMOTE ON-OFF CONTROL| Please refer to the Function Manual

ENVIRONMENT

| WORKING TEMP.| -40 ~ +70℃ (Refer to “Derating Curve”)
WORKING HUMIDITY| 5 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY| -40 ~ +85, 5 ~ 95% RH non-condensing
TEMP. COEFFICIENT| ±0.03%/℃ (0 ~ 55℃)
VIBRATION| Component:10 ~ 500Hz, 5G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC61373
OPERATING ALTITUDE Note.7| 5000 meters

SAFETY & EMC

(Note 6)

| SAFETY STANDARDS| IEC 62368-1, UL 62368-1, EAC TP TC 004, AS/NZS 62368.1 approved
WITHSTAND VOLTAGE| I/P-O/P:4KVdc I/P-FG:2.5KVdc O/P-FG:0.71KVdc
ISOLATION RESISTANCE| I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500Vdc / 25℃/ 70% RH

EMC EMISSION

EMC IMMUNITY

OTHERS

| MTBF| 1415.6K hrs min. Telcordia SR-332 (Bellcore) ; 189.9K hrs min. MIL-HDBK-217F (25℃)
DIMENSION| 40125.2113.5mm (WHD)
PACKING| 0.76Kg;20psc/16.2Kg/1.16CUFT
NOTE| 1. All parameters NOT specialy mentoned are measured at normal input (B:24Vdc, C:48VdC, D:110VGC), rated ioad and 25 of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12 twisted pair-wire terminated with a 0.1 jef & 47 uf paralel capacitor. . lolerance: includes set up tolerance, line regulation and load regulaton. Derating may be needed under low input voltage. Please check the derating curve for more details. .3 seconds max., please reler to peak loading curves. . The power supply is considered as an independent unit, but the final equipment still need to re-confirm that the whole system complies with the EMC directives. For guidance on how to perform these EMC tests, please refer to “EMI testing of component power supplies (as available on http://www.meanwell.com) 7. The ambient temperature derating of 3.5 C/1000m with fanless models and of 5C/1000m with fan models for operating altitude higher than200Om(6500ft) Product Liability Disclaimer: For detailed information, please refer to https://www.meanwell.com/serviceDisclaimer.aspx
https://www.meanwell.com/serviceDisclaimer.aspx
| Arrow| .com.| File Name:DDR-240-SPEC 2022-03-18

MEAN-WELL-DDR-240-Series-240W-DIN-Rail-Type-DC-DC-
Converter-02

Contact Close	PSU turns on / DC OK.
Contact Open	PSU turns off / DC Fail.
Contact Ratings (max.)	30V/1A resistive load.

Current sharing
Parallel operation is available by connecting the units shown as below (P+,P- are connected mutually in parallel) :
The voltage difference among each output should be minimized that less than 0.2V is required.
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.
In parallel operation 4 units is the maximum, please consult the manufacture for other applications.
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)
Remote ON-OFF Control
※ The power supply can be turned ON-OFF by using the “Remote ON-OFF” function.

Remote ON-OFF (TB1 PIN2,4)	Output Status
Open or 4 ~ 10VDC	power supply ON
Short or 0 ~ 0.8VDC	power supply OFF

Input face

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.

MEAN-WELL-DDR-240-Series-240W-DIN-Rail-Type-DC-DC-
Converter-04

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.

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.

Load

Model

| 100% load| 70% load| other load
---|---|---|---
B type (24Vin)| 6ms min.| 10ms min.| figure 1,2
C type (48Vin)| 8ms min.| 11ms min.| figure 3,4
D type (110Vin)| 11ms min.| 15ms min.| figure 5,6

MEAN-WELL-DDR-240-Series-240W-DIN-Rail-Type-DC-DC-
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