Chint Circuit Breakers Circuit breaker 627131 - Chint 179651, The Chint circuit breaker features a 2-pin design, rated at 40 A with a voltage capacity of 240 V/415 V and a breaking capacity of 6 kA. It is suitable for overcurrent and short-circuit protection in residential and commercial electrical systems. This circuit breaker is commonly used to safeguard circuits from potential electrical faults and damage. Chint 179651 NB1-63 Circuit Breaker 2P B40 6kA 240/415V 40A Protection