Circuit Breakers are in stock at Tenco Electronics.A circuit breaker is an automatically operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typically resulting from an overload or short circuit.Circuit breakers are made in varying sizes, from small devices that protect low-current circuits or individual household appliance, up to large switchgear designed to protect high voltage circuits feeding an entire city.Tenco offers inventory, pricing, & datasheets for Circuit Breakers . To know more, please view our large section of Circuit Protection -Circuit Breakers below.