can be used both as circuit-breakers for general protection (of plants, of user complexes, of electric lines) and as protection circuit breakers of electrical machines (generators, motors, transformers, capacitors).
The moulded-case circuit-breakers, proposed by ABB SACE, derive from two families of apparatus: the well-known and consolidated Isomax S series and the recent but already much awarded Tmax series (Top selection at Intel Design 2003 for their technological content and respect of the environment ).

These can be used both as circuit-breakers for general protection (of plants, of user complexes, of electric lines) and as protection circuit-breakers of electrical machines (generators, motors, transformers, capacitors). They are used in all types of plants (civil, industrial, and in the service sector) as well as in the equipment on-board ships, in mines, in prefabricated substations, and for primary and secondary distribution in general.