Fields of application

– As isolating device in meter boards for downstream

customer´s installation

2CDC 021 007 S0011

– In main distribution boards or switchgear as a selective

group or back-up protection device, especially where a

high degree of continuity of supply is required, e.g. for

installations related to “Safety Services” (IEC 60346-5-56),

“Medical Locations” (IEC 60364-7-710) etc.

– For general applications with tripping characteristic E

– For the protection of areas where high current peaks

(e.g. start-up currents) occur during operation, using

circuit-breakers with tripping characteristic K (S 750 DR)

Selective main circuit-breakers of the S 750 and S 750 DR series are SMCBs

according to DIN VDE 0641-21 with voltage-independent Operating principle.

This means that they do not rely on a control circuit to make or break contact

(SHU) and are therefore particularly suitable for use in energy distribution

systems with maximum availability requirements. Two mounting variants

are available: S 750 for bus bars and S 750 DR for DIN rail mounting.