Description
BB2DB-63 Series Selective DC Miniature Circuit Breaker (hereinafter referred to as the circuit breaker) has a rated insulation voltage of AC 690 V and rated operational voltage DC 250 / 440 V. It is used in DC power grid circuits with rated operational current from 16 A to 63 A. It provides overcurrent protection for system circuits and electrical equipment in buildings and similar locations, and can also be used for infrequent energizing operations.
The circuit breaker is equipped with long-time delay protection for overload, short-time delay protection for short circuit and instantaneous short-circuit protection.
