Scope of application
SMGB1-63 series miniature circuit breaker is mainly applied to ac 50 hz / 60 hz, the rated working voltage of 230 v / 400 v and below, rated current 63 a circuit, and used as overload, short circuit protection, can also be used in normal operating line not frequent operation transformation. The circuit breaker is mainly used for electrical wiring and equipment of modern architecture of overload, short circuit protection, and is also suitable for line is not a frequent operation and isolation.
This product conforms to the GB10963.1 standard, the CCC compulsory certification.

Model and meaning

Structure characteristics
SMGB1-63 series miniature circuit breaker by plastic shell, operating mechanism, contact and arc extinguishing system, trip mechanism, etc. Special plastic shell adopts the high flame retardant high strength, impact resistant capability is strong, light weight, the circuit breaker operating mechanism parts adopt high strength plastic, in ensuring that sensitive, reliable and received the lowest moment of inertia, made from fault to trip mechanism action time is very short. Trip mechanism by bimetallic strip overload inverse time tripping mechanism and short transient dynamic electromagnetic mechanism of two parts.
Arc extinguishing system, adopt the special guide arc gate and arc extinguish chamber, current limiting characteristics significantly.

The main technical parameters




Appearance and installation dimensions (mm)