Kurzbeschreibung

Selective main circuit breakers of the S 750 series fully comply with E DIN VDE 0641-21.

They operate voltage-independent, i.e. their function does not depend on auxilary source

(SHU). They are designed for mounting onto 40 mm busbar systems (4- or 5-pole, 5/10 mm x 12 mm).

Independant of current rating of S 750. short circuit discrimination of up to 10.000 A or even

higher is available for the downstream circuit-breakers.

The short-circuit capacity of the S 750 is 25 kA (system voltage 230/400 V AC) throughout the

entire range of rated current.

Due to its particular current-limiting selectivity features, STOTZ selective main circuit breakers

support downstream circuit-breakers in limiting the energy when a short circuit occurs, thus

reducing the load on the back-up fuse and the entire electrical installation.

STOTZ selective main circuit breakers are suitable to disconnect and release electric circuits.

STOTZ selective main circuit breakers can be operated by ordinary people. The contact

position is indicated clearly and unambiguously by (1) the position of the operating lever,

clearly identified by the 0-I positions, and (2) also by a separate position indicator

(RED = on, GREEN = off).