HR / ER Series
144 / 288 Watt 10:1 DC-DC Converters
The ER/HR Series of DC-DC converters represents versatile
power supplies ideally suitable for use in transportation and
other advanced electronic systems.
The HR Series converters include a very broad input voltage
range, very high efficiency, high reliability, low output voltage
noise, and excellent dynamic response to load/line changes.
HR converters can be connected to all conventional railway
batteries.
ER Series converters are optimized for connection to 110 V
railway batteries.
111
4.4ꢀ
3 U
Features
• Extremely wide input voltage range from 12 to 168 VDC
in the same converter (HR Series)
• RoHS-compliant for all 6 substances
• Class I equipment
60
2.4ꢀ
12 TE
168
6.6ꢀ
• Compliant with EN 50155, EN 50121, EN 45545
• Input over- and programmable undervoltage lockout
• Shutdown function
• Inrush current limitation
• Interruption time 10 ms
• Adjustable output voltages
• 2 isolated outputs: no load, overload, and short-circuit proof
• Rectangular current limiting characteristic
• Parallel operation with active current sharing
• Very high efficiency up to 94%
• Immunity according to IEC 61000-4-2, -3, -4, -5, -6, -8, -9
• All PCB boards protected by lacquer
• Very high reliability
111
4.4ꢀ
3 U
• 5 year warranty
80
3.2ꢀ
16 TE
168
6.6ꢀ
Safety-approved to the latest edition of IEC/EN 60950-1
and UL/CSA 60950-1
Table of Contents
Description........................................................................................1
Model Selection................................................................................2
Functional Description......................................................................5
Electrical Input Data .........................................................................7
Electrical Output Data.....................................................................10
Auxiliary Functions .........................................................................15
Electromagnetic Compatibility (EMC).............................................18
Immunity to Environmental Conditions...........................................20
Mechanical Data.............................................................................21
Safety and Installation Instructions.................................................24
Description of Options....................................................................25
Accessories....................................................................................26
belfuse.com/power-solutions
BCD.00185 Rev AH, 07-Jun-2018