DC/DC converter modules target railway apps

It accepts a nominal input voltage of 110V DC input voltage (66-154V range) and is rated for a single output of 28V/107A.

Other input and output values are available on request.

Suitable for a range of on-board and track-side applications, the BAP 3KR meets all relevant railway standards including EN50155 for electronic equipment used on railway rolling stock.

It also has input and output filtering in compliance with EN55022 and EN50121-3-2 conducted and radiated EMI standards.

The BAP 3KR unit has four internal modules, which also provide inherent redundancy; the failure of one module would result in only a minor loss in total output power.

The unit has 3kV DC input to output isolation, inrush current limiting and reverse polarity protection at the input.

Over-voltage, rectangular current limiting with short circuit and thermal protection are standard.

Optional output fail alarm (Form C), indicators and control input are also available.

This compact unit measures 244mm x 132mm x 407mm and weighs 8kg.

Built-in fans provide sufficient airflow for operation without de-rating up to 55C.

It is fully ruggedised and conformal coated to ensure immunity to shock, vibration and moisture, meeting IEC 61373 Categories 1 A and B shock and vibration standards.