Overview
DDR-120 series 120W DIN rail type DC-DC converter.
Features
Compliance to BS EN50155 railway standard and BS EN/EN45545-2.
Width only 32mm.
2:1 wide input range.
-40..+70°C 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.
Applications
Bus, tram, metro or railway system.
Industrial control system.
Semi-conductor fabrication equipment.
Factory automation.
Electro-mechanical.
Wireless network.
Telecom or datacom system.
Description
DDR-120 series is a 120W DIN rail type DC-DC converter with easy installation, ultra slim width (32mm), wide operating temperature, reinforced 4KVDC I/O isolation, and full protection functions. Models provide multiple input options and 12V/24V/48V outputs for railway control, security control, communication systems, and other industrial applications.
Electrical
| Rated power |
120W |
| Peak power |
180W (3sec.) |
| Input voltage options |
A-type: 9..18VDC, B-type: 16.8..33.6VDC, C-type: 33.6..67.2VDC, D-type: 67.2..154VDC |
| Output voltage options |
12VDC, 24VDC, 48VDC |
| Ripple & noise (max.) |
50mVp-p |
| Voltage adjustable range |
12V: 9..14V, 24V: 24..28V, 48V: 48..56V |
Models
| A-type (9..18VDC) |
DDR-120A-12 (12VDC/8.3A), DDR-120A-24 (24VDC/4.2A), DDR-120A-48 (48VDC/2.1A) |
| B-type (16.8..33.6VDC) |
DDR-120B-12 (12VDC/10A), DDR-120B-24 (24VDC/5A), DDR-120B-48 (48VDC/2.5A) |
| C-type (33.6..67.2VDC) |
DDR-120C-12 (12VDC/10A), DDR-120C-24 (24VDC/5A), DDR-120C-48 (48VDC/2.5A) |
| D-type (67.2..154VDC) |
DDR-120D-12 (12VDC/10A), DDR-120D-24 (24VDC/5A), DDR-120D-48 (48VDC/2.5A) |
Protection and status
| Overload |
Normally works within 150% rated output power for more than 3sec. and then constant current protection 105..135% rated output power, auto-recovery |
| Over voltage |
Protection type: shut down output voltage, re-power on to recover (12V: 14.4..16.8V, 24V: 28.8..33.6V, 48V: 57.6..67.2V) |
| Reverse polarity |
By internal MOSFET, no damage, recovers automatically after fault condition is removed |
| Under voltage lockout |
A-type: ON >=9V, OFF <=8.5V; B-type: ON >=16.8V, OFF <=16.5V; C-type: ON >=33.6V, OFF <=33V; D-type: ON >=67.2V, OFF <=65V |
Environment
| Cooling |
Free air convection |
| Working temperature |
-40..+70°C (refer to derating curve) |
| Working humidity |
5..95%RH non-condensing |
| Storage temperature |
-40..+85°C |
| Operating altitude |
5000m |
Terminal assignment
| TB1 pin 1 |
FG |
| TB1 pin 2 |
DC Input -Vin |
| TB1 pin 3 |
DC Input +Vin |
| TB2 pin 1, 2 |
DC Output -Vo |
| TB2 pin 3, 4 |
DC Output +Vo |
Dimensions
| Dimensions (WxHxD) |
32x125.2x102mm |
