Data Sheet

ManualsBrandsMean Well ManualsDIN Rail PSUsMean Well DDR-120B-12 Rail mounted DC/DC converter (DIN) 12 V DC 10 A 120 W 1 x

■ Description

■ Model Encoding



Compliance to EN50155 and EN45545-2 railway standard

Width only 32mm

2:1 wide input range

-40~+70 wide working temperature℃

150% peak load capability

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 /

Input reverse polarity / Input under voltage protection

4KVdc I/O isolation(Reinforced isolation)

3 years warranty

Bus tram,metro or railway system,

Industrial control system

Semi-conductor fabrication equipment

Factory automation

Electro-mechanical

Wireless network

Telecom or datacom system

■ Features ■ Applications

DDR-120 series

File Name:DDR-120-SPEC 2019-08-02

Output voltage(12/24/48Vdc)

Rated wattage

Series name

-24DDR - 120 A

Input voltage (A 9~18Vdc, B:16.8~33.6Vdc, C:33.6~67.2Vdc, D:67.2~154Vdc):

DDR-120 series is a 120W DIN Rail type DC-DC converter with main features including DIN rail-type easy installation,

ultra slim width (32mm), 2:1 wide input voltage, fanless design, -40~+70 wide operating temperature, 4KVdc ℃

I/O isolation, 150% peak load, adjustable output voltage and full protective functions.

This series of models has various input options: 9~18V / 16.8~33.6V / 33.6~67.2V / 67.2~154V and various

output options: 12V / 24V / 48V and can be used for industrial & railway control, security control, communication

system and other fields. Suitable applications include DC buck/boost regulator, increasing system insulation level

and voltage drop compensation along cable...etc.

120W DIN Rail Type DC-DC Converter

Summary of content (10 pages)

PAGE 1
20W DIN Rail Type DC-DC Converter ■ Features Compliance to EN50155 and EN45545-2 railway standard Width only 32mm 2:1 wide input range -40~+70℃ wide working temperature 150% peak load capability DC output adjustable Cooling by free air convection Can be installed on DIN rail TS-35/7.
PAGE 2
DDR-120 120W DIN Rail Type DC-DC Converter series SPECIFICATION DDR-120A-12 DDR-120A-24 DDR-120A-48 DDR-120B-12 DDR-120B-24 DDR-120B-48 DC VOLTAGE 12V 24V 48V 12V 24V 48V RATED CURRENT 8.3A 4.2A 2.1A 10A 5A 2.5A CURRENT RANGE 0 ~ 8.3A 0 ~ 4.2A 0 ~ 2.1A 0 ~ 10A 0 ~ 5A 0 ~ 2.5A RATED POWER 99.6W 100.8W 100.8W 120W 120W 120W PEAK CURRENT 12.45A 6.3A 3.15A 15A 7.5A 3.75A MODEL PEAK POWER OUTPUT Note.5 150W (3sec.) RIPPLE & NOISE (max.) Note.
PAGE 3
DDR-120 120W DIN Rail Type DC-DC Converter series SPECIFICATION DDR-120C-12 DDR-120C-24 DDR-120C-48 DDR-120D-12 DDR-120D-24 DDR-120D-48 DC VOLTAGE 12V 24V 48V 12V 24V 48V RATED CURRENT 10A 5A 2.5A 10A 5A 2.5A CURRENT RANGE 0 ~ 10A 0 ~ 5A 0 ~ 2.5A 0 ~ 10A 0 ~ 5A 0 ~ 2.5A RATED POWER 120W 120W 120W 120W 120W 120W PEAK CURRENT 15A 7.5A 3.75A 15A 7.5A 3.75A RIPPLE & NOISE (max.) Note.2 50mVp-p 50mVp-p 50mVp-p 50mVp-p 50mVp-p 50mVp-p VOLTAGE ADJ.
PAGE 4
DDR-120 120W DIN Rail Type DC-DC Converter series Block Diagram fosc : 65KHz RECTIFIERS & FILTER POWER SWITCHING EMI FILTER I/P FG O.L.P. +Vo -Vo DETECTION CIRCUIT PWM CONTROL O.V.P. Derating Curve Output derating VS input voltage 100 150 For 3 sec. (typ.) 120 LOAD (%) LOAD (%) 100 80 Continuous 40 90 85 80 B/C/D Type 70 A Type 60 50 40 -40 -30 -20 -10 0 10 20 30 40 50 55 60 70 (VERTICAL) A Type: B Type: C Type: D Type: 9 16.8 33.6 67.2 10.8 21.6 43.2 86.
PAGE 5
DDR-120 120W DIN Rail Type DC-DC Converter series Input Fuse There is a 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.
PAGE 6
DDR-120 120W DIN Rail Type DC-DC Converter series 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. Input Range and Transient Ability The series has a wide range input capability. With -30% / +40% of rated input voltage(except A Type), it can withstand that for 1 second.
PAGE 7
DDR-120 120W DIN Rail Type DC-DC Converter series Hold-up Time EN50155: 2007 version - D type is in compliance with S2 level (10ms), while A types are in compliance with S1 level (3ms) at full load output condition. To fulfil the requirements of S2 level (10ms), B types require de-rating their output load to 70%, C types require de-rating their output load to 60%, please refer to the curve diagrams below.
PAGE 8
DDR-120 120W DIN Rail Type DC-DC Converter series Efficiency vs Load & Vin Curve The efficiency vs load & Vin curves of each model are shown as below. DDR-120A-12 DDR-120A-24 95% 85% 12Vdc 15.6Vdc 80% 10.8Vdc 75% 70% 90% 85% 12Vdc 15.6Vdc 80% 10.8Vdc 75% 70% 20% 30% 40% 50% 60% 70% 80% 90% 100% 20% 30% 40% 50% LOAD 31.2Vdc 80% 16.8Vdc 75% 70% 90% 100% 50% 60% 70% 80% 90% 100% 80% 33.6Vdc 75% 67.2Vdc 70% EFFICIENCY 48Vdc 65% 24Vdc 31.2Vdc 80% 16.
PAGE 9
120W DIN Rail Type DC-DC Converter DDR-120 series Immunity to Environmental Conditions Standard Test method Test conditions Temperature: -40℃ Dwell Time: 2 hrs/cycle Status Cooling Test EN 50155 section 12.2.3 (Column 2, Class TX) EN 60068-2-1 Dry Heat Test EN 50155 section 12.2.4 (Column 2, Class TX) Temperature: 70℃ / 85℃ EN 50155 section 12.2.4 (Column 3, Class TX & Column 4, Class TX) Duration: 6 hrs / 10min EN 60068-2-2 PASS Damp Heat Test, Cyclic EN 50155 section 12.2.
PAGE 10
DDR-120 120W DIN Rail Type DC-DC Converter series Mechanical Specification Case No. Unit:mm 32 Terminal Pin No. Assignment (TB2) Pin No. 1,2 3,4 Assignment DC Output -Vo DC Output +Vo Top View 102 TB2 1234 (No Use) 125.2 +Vo Adj. 123 TB1 Front View Side View Side View Terminal Pin No. Assignment (TB1) 35 Pin No. Assignment 1 FG DC Input -Vin 2 3 DC Input +Vin ADMISSIBLE DIN-RAIL:TS35/7.5 OR TS35/15 Bottom View Installation Manual Please refer to : http://www.meanwell.com/manual.