BAP65R

DC/DC Converter Railway Applications

The BAP65R series DC/DC converters are an upgraded product from the very popular and mature BAP industrial grade product, with, field-proven reliability over 20 years. These units are specifically designed for rolling stock/rail applications and can be manufactured to customer specifications with total flexibility to match customer requirements.

Units are supplied with a conformal coating of PCBs and a high level of ruggedization for shock & vibration to IEC 61373. Designed for a wide range of input voltage options from 24 ~ 168vdc and any output voltage from 12 ~ 130VDC.

Main Features

  • Designed to rail standards EN50155 & EN50121
  • Wide input range
  • Rugged design for on-board train applications
  • Wide input voltage range
  • Convection / Conduction cooled: No fans
  • Fully isolated input-output 3000VDC
  • Overvoltage protection
  • Overload and short circuit protection
  • MTBF > 200,000hrs
  • Any output from 12vdc ~ 130vdc possible
  • Specials input/output combinations on request
  • N+1 Redundancy option

Options

  • Redundancy: Units can be supplied with built-in isolation diode for use in N+1 Redundancy/ Parallel applications
  • Alarm: Voltage free relay contacts for monitoring DC output
  • Output Voltage: Any output

Rugged Mechanical Designs

Helios power supplies are ruggedly constructed and can be customized for specific mechanical requirements. Standard mechanical packages and ruggedization options include:

  • Chassis and wall-mountable units in vented conduction/convection or fan-cooled enclosures
  • DIN-rail and open-frame format available for many designs
  • Plug-in (Eurocard) format for modular power systems in 19 inch or 23-inch racks
  • Conformal coating and ruggedizing are standard
  • Full encapsulation (potting) in a thermally conductive MIL-grade silicon rubber compound with UL94V-0 flammability rating for immunity to high levels of shock and vibration, humidity, moisture, dust, salt, oil, insects and other contaminants
  • Enclosure in rugged, IP66- or IP67-rated waterproof, dustproof and explosion-proof die-cast aluminium packages. These enclosures also protect internal electronic boards from condensation and the ingress of oil, salt, sand, insects and other environmental contaminants
  • Custom connections
  • Portable DC Power Supplies

SERIES TABLE

ModelInput ( V)Output ( V)Output ( A)Power (W)
BAP65R24VDC   ( 14.4 ~ 34 )
36VDC   ( 22 ~ 51 )
48VDC   ( 20 ~ 67)
72VDC   ( 43 ~ 101)
96VDC   ( 58 ~ 135)
110VDC   ( 66 ~ 154)
12V
24V
48V
110V
25.0A
12.0A
6.0A
2.7A
300W

SPECIFICATIONS TABLE

Operating input voltage range24VDC   ( 14.4 ~ 34 )
36VDC   ( 22 ~ 51 )
48VDC   ( 20 ~ 67)
72VDC   ( 43 ~ 101)
96VDC   ( 58 ~ 135)
110VDC   ( 66 ~ 154)
Input ProtectionReverse polarity protection.Inrush current limiting Lower voltage than specified will not damage unit
Output VoltageAny output from 12vdc ~ 130vdc possible
Regulation±1% Line / Load combined
Operating Temp: -25ºC to +55ºC  cold plate temperature at 100%
load, +70ºC at 60% load
EfficiencyModel dependent , typically 80-90%
Dynamic ResponseMax ±5% diviation for 10% – 50% load step wuth 1msec recovery
MTBF>200,000 hrs

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