ABSOPULSE Electronics BAP 319R-HSA-F4 series of convection cooled railway DC-DC converters deliver up to 500W of output power. The units meet the requirements of EN50155 for electronic equipment used on railway rolling stock. The converters are also suitable for a broad range of heavy-duty industrial applications.

The BAP 319R-HSA-F4 converters are convection cooled by a heat sink assembly, with fins attached to the under-surface of the unit. This ensures operation at a -25°C to +55oC temperature range for full specification, without derating. The heatsink assembly can be mounted to a chassis or DIN-rail. The chassis-mounted option is ideal for applications in which a heat sinking surface is not available and convection cooling is required.

Nominal input voltages and EN50155 input ranges include 36Vdc (22-51V), 48Vdc (29-67V), 72Vdc (43-101V), 96Vdc (58-135V), or 110Vdc (66-154V). With derating to 300W, 24Vdc (14.4-34V) input is available. The converters provide any DC-output up to 130Vdc. An optional redundancy diode allows parallel connection to achieve a higher output power or N+1 redundancy. Other options include a Form C output fail alarm and remote shutdown.

The BAP 319R-HSA-F4 railway DC-DC converters are equipped with heavy filtering on the input and output and comply with EN50121-3-2. They also meet EN61000-4-2 (ESD), EN61000-4-3 (RF Immunity), EN61000-4-4 (Fast Transients), and EN61000-4-6 (Conducted Immunity). Other protection includes 3000Vdc input-output isolation, overload protection, thermal protection, and current limiting.

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