Circuit Breaker Definitions
At times, there can be uncertainty when it comes to the use of terms as to the condition of the circuit breakers supplied circuit breaker industry professionals. The following circuit breaker definitions provide detailed characteristics and explanations for the conditions and types of circuit breakers you’ll encounter while shopping for new breakers and supplies.
Used Circuit Breakers
To buy used circuit breaker implies that the breaker is supplied in the condition that it was received by the supplier when it was pulled from service. There are no guarantees or warrantees with a used circuit breaker. Another term for used circuit breaker is an “as is” circuit breaker
Electrically OK Circuit Breakers
To buy an electrically OK circuit breaker implies that the circuit breaker has been run through basic testing prior to being sold. An electrically OK breaker is generally sold to someone who is going to rebuild this breaker and does not mean it is suitable for service. Another term for electrically OK circuit breaker is EOK.
Remanufactured Circuit Breakers and Rebuilt Circuit Breakers
To purchase a remanufactured circuit breaker implies that the supplier has completely rebuilt the circuit breaker to new condition. All worn parts are replaced, and the breaker comes with a fully documented test report that guarantees the circuit breaker for a period of time. Companies can differ on their remanufacturing procedures, and it’s always good to ask for a copy of this. Another term for remanufactured circuit breaker is rebuilt circuit breaker.
Unused/New Surplus Circuit Breakers
To buy an unused or new circuit breaker implies that the supplier acquired the circuit breaker from a project where the equipment was never energized. The gear is then considered to be new surplus, and stored. It can sometimes be several years old, but never been utilized.
New Circuit Breakers
To buy a new circuit breaker is to have a circuit breaker purchased in new condition from the original equipment manufacturer.



