Electronic Products & Technology

250W Convection cooled railway converters float-charge hold-up batteries

Stephen Law   

Electronics Power Supply / Management power transportation

ABSOPULSE ELECTRONICS LTH 65R-F3-HSA series of heavy-duty, railway quality dc-dc converters are designed to float charge hold-up batteries for onboard rolling stock electrical equipment. Units operate from a 12Vdc (10.5-16V) input and deliver 24V, 48V or 125Vdc with corresponding float charges. Custom input /output values are available on request. An optional built-in redundancy diode allows for paralleling and N+1 operation or back-up battery connection. Units are also suitable for a range of other transportation and industrial applications. Products are cooled by a heatsink assembly block with fins attached to the under-surface of the unit. The heatsink assembly also allows for mounting on uneven and thermally non-conductive surfaces. A DIN-rail mounting option is available. Products are rated for operation over a -25°C to +55°C temperature range for full specification, with wider temperature ranges are available on request. 

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