DIN rail power supplies win UK railway approval

October 29, 2019 //By Nick Flaherty
Five DIN rail power supplies from PULS Power have been qualified for use on UK railways
Five DIN rail power supplies from PULS Power have been qualified for use on UK railways

PULS Power has received full acceptance certification by Network Rail for five of its DIN-rail power supplies to be used with signaling equipment in environments not exceeding 95% relative humidity.

The Network Rail product acceptance process is required for products intended for use on or about rail infrastructure and ensures they are safe, reliable, fit for purpose, compatible and do not export unacceptable risks to the infrastructure. Only accepted products, (except those allowed by NR/L2/RSE/100/05) may be used on rail infrastructure. These are authorised by the Network Rail Assurance Panel (NRAP) for use on railway infrastructure for which Network Rail is the manager under ROGS regulations

The qualifying members of the QS Series of DIN-Rail power supplies include a wide input range from 100 to 240VAC, wide operating temperature from -25⁰C to +60⁰C without derating (+60⁰C to +70⁰C with derating) and operation with 95% maximum relative humidity.

Three of the approved PULS DIN-Rail power supplies feature the PULS Hiccupplus overload protection mode using technology innovations to overcome the problems associated with early hiccup protection circuits which were considered too sensitive when used in conjunction with motors or loads that are equipped with large input capacity, running power supplies in parallel or battery charging. These are the QS40.241 with a DC output of 24V/40A, and the QS20.481.C1 and QS20.241.C1 with outputs of 48V/10A and 24V/20A respectively and feature conformal coating

The two other approved DIN-Rail power supplies are the QS10.481.C1 providing an output of 48V/5A and the QS5.241.A1 rated ta 24V/5A which are also conformally coated. A wall mounting bracket is available for all models.

“Railway infrastructure is a key market for our DIN-Rail power supplies,“ said Marco van der Linden, UK Country manager for PULS.” Our advanced, high efficiency and high reliability designs simplified the process required for us to be awarded our Network Rail certification and we are looking forward to increased sales into railway projects.”

www.pulspower.com/products/show/product/detail/cp20241-v1


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