Grau Elektronik Railway High Voltage Starters

At Grau Elektronik’s, this product category covers the high voltage range from 750 VDC up to 3000 VDC:
On one hand, well-established converters for contact wires, that are made for providing 24 or 110 V at railway crossings, using the 750 VDC contact wire’s voltage. What is special and very practical about it: The devices are meant to be inserted and kept running directly at the contact wire, without any additional transient filters or external fuses.
On the other hand, our reliable emergency starting equipment, for 1500 VDC and 3000 VDC applications: They are able to provide downstream devices and their control electronics in a safe way in the case of a deep discharged battery, as well as to initiate a system start at any time, using contact wire voltage.