STOTZ selective main circuit breakers fully comply with

the requirements of the German utilities directive (Technical

Connection Requirements of Network Operators) concerning

the mandatory pre-meter isolation and protection functions.

For these applications, selective main circuit breakers:

− ensure load current carrying capability over a large

temperature range;

− protect cables in the case of functional overload;

− protect cables in the case of a short circuit;

− clear high short-circuit currents reliable;

− limit the let-through current and let-through energy also

in the case of selective short-circuit disconnection by

downstream mcb

− provide disconnection and re-connection of installation,

also by ordinary people;

− provide selectivity with respect to downstream

circuit-breakers and upstream fuses;

− ensure highest availibility of electrical power supply for the customer.