Shunt current limiter 100 A ABB 2CCS803917R0639

The short-circuit current limiters of the S800 series increase the short-circuit breaking capacity of the downstream switching devices. A distinction must be made between the SCL and the SCL-SR devices. The latter are self-resetting devices. The advantage of this self-resetting short-circuit current limiter S800-SCL-SR is that continuous current flow is ensured to all downstream switching devices, was this simplifies group protection. Up to now, a separate short-circuit current limiter has been used with the S800SCL devices for each output to ensure that, in the event of a fault, all the others continue to work except for the faulty branch. This is no longer necessary – now you can protect a whole group of motor protection switches / high-performance automatic machines with just one S800-SCL-SR. Can only be used for approved combinations.

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