200W, Encapsulated Railway DC-DC Converters with Pure Convection Cooling

RWY 200-HSA-P200 encapsulated railway DC-DC converters offer pure convection cooling by heatsink fins and flexible mounting options

Fully encapsulated railway DC-DC converters  offer protection of traction and rolling stock equipment from transients and surges in DC control systems.

Fully encapsulated railway DC-DC converters with pure convection cooling can be mounted to a chassis or DIN-rail

The RWY 200-HSA-P200 series is a recent addition to our line of fully encapsulated railway quality DC-DC converters with pure convection cooling. The 200W converters are cooled by a heatsink assembly attached to their under-surface. This ensures operation over -40 to +55oC temperature range for full specification without derating; wider temperature ranges are available on request.

The heatsink assembly can be mounted to a chassis or DIN-rail. The chassis-mounted option is suitable for applications in which a suitable heatsinking surface is not available and only convection cooling will suffice. The heatsink assembly is also suitable for mounting on thermally non-conductive surfaces such as wood, plastic and brick walls.

DIN-rail clips are available on request for DIN-rail mounting.

The RWY 200-HSA-P200 converters are fully encapsulated with a thermally conductive MIL-grade silicon rubber compound with a UL94V-0 flammability rating.  Encapsulation ensures protection from high levels of shock and vibration, moisture, dust, salt fog and other contaminants. Encapsulation also provides heat dissipation throughout the module. 

Heatsink assembly for size P100-P150-P200-P300 packages

Heatsink assembly with fins for P100, P150, P200 or P300 packages.

The 200W railway converters deliver a single, regulated output of 12Vdc, 24Vdc, 36Vdc, 48Vdc or 110Vdc. They accommodate a broad range of battery and bus distribution voltages while operating with wide input voltage tolerances.  Inputs ranges comply with EN50155 and include 14.4-34V (24Vdc nominal), 36Vdc (22-51V), 29-67V (48Vdc), 43-101V (72Vdc) or 66-154Vdc (110Vdc). Custom input and output voltages are available.

The converters meet the requirements of EN50155 for electronic equipment used on railway rolling stock. They are equipped with heavy filtering on the input and output and comply with EN50121-3-2. The units 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. 

ABSOPULSE is an original equipment manufacturer (OEM) engaged in the design and manufacture of an extensive range of railway and industrial quality power conversion solutions. We specialize in fully custom solutions. All of our existing designs can also be modified to meet customer requirements. To discuss any of your power conversion requirements, please get in touch with us.

Key Specifications

  • 200W Railway quality dc-dc converters – EN50155 compliant;
  • EMI: EN50121-3-2;
  • Input: 24Vdc, 36Vdc, 48Vdc, 72Vdc, 96Vdc, 110Vdc (wide EN50155 ranges);
  • Output: 24Vdc, 36Vdc, 48Vdc, 110Vdc or custom;
  • Line/load regulation: ±1% combined from no load to full load;
  • Cooling: natural convection;
  • -40°C to +55°C operating temperature range for full specification;
  • Chassis-mount and DIN-rail mount options available;
  • P200 encapsulated unit: 69 x 58 x 211 mm (2.7″ x 2.3″ x 8.3″)
    Installed on an HSA-P200 4×10 heatsink assembly
    Overall dimensions:  3.9” x 4.2” x 10.65”

Generic Data sheet – RWY 200-HSA-P200 encapsulated railway DC-DC converter

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