Schaltbau’s solid-state contactor, ZH767HSeries, is designed for a nominal switching power of 50kVA.

High-quality thyristors are employed for load switching. Therefore, ohm resistive ac loads can be controlled without wear and maintenance at an extremely high frequency of operation. No audible noise is generated by the switching operation.

The usage of these electronic contactors, for instance, on board of passenger trains (coaches, dining and sleeping cars) therefore improves the passenger comfort level considerably. The correct functioning of the ZH767HSeries contactor is monitored by a galvanically isolated, short-circuit-proof output (short-circuit current = 100mAmax).

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Schaltbau GmbH is based in Munich, Germany. www.schaltbau-gmbh.com