1kW, Convection Cooled, High-reliability, Industrial Power Converters offer Internal Redundancy

Absopulse Electronics Ltd.
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ABSOPULSE Electronics has recently released the BHR 65X2-4U2NF, a 1kW addition to its line of high-reliability, convection cooled, dc-dc converters.

The BHR 65X2-4U2NF converters operate from DC-inputs of 48Vdc or 125Vdc and deliver a single output of 24Vdc, 48Vdc or 125Vdc. A +/- dual output configuration is also possible. Typical conversion efficiency is 85% at full load. Two 500W internal modules are connected redundant parallel, which provides inherent redundancy: the failure of one internal module would result in a 50% drop in output power while the unit remains functional at 500W. The converter can also be used as a 500W redundant power supply.

The elimination of optical components allows for very low component count and significantly higher MTBF compared to conventional designs. Large design headroom and comprehensive electronic protection also contribute to its long operating life.

The converters are cooled by natural convection and require no forced air. Heatsink fins are installed on the sides of the unit and internally to provide sufficient cooling for operation over a 0°C to +50°C temperature range without de-rating. Wider temperature ranges are also available.

The converters are designed for compliance with EN/UL60950-1 and equivalent safety standards. They are well suited to a broad range of heavy-duty industrial applications where fan cooling is not permitted, and where replacement or repair of electrical equipment is not practicable. An EN50155-compliant railway quality version of this design is also available.

1kW, Convection Cooled, High-reliability, Industrial Power Converters offer Internal Redundancy

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