The NB7 series miniature circuit breaker is applicable to the
circuit with an alternating current of 50Hz, rated voltage of
230/400V, and rated current up to 63A for overload
protection and short circuit protection, and also for not-
frequent operational transformation in the circuit under
This product can be applied to various places such as
industrial, commercial, and tall buildings, and residential
The product meets the standards of IEC60898-1.