Compact CK Circuit Breakers are obsolete and no longer available. If necessary to replace an existing CK, a currently-produced circuit breaker can be used that will perform the same function.
It is very important to note, however, that the replacement circuit breaker will be of different size and mounting dimensions compared to the CK breaker.
To help clarify dimensions and ratings of the obsolete CK circuit breakers, see the attached two files.
When choosing the replacement circuit breaker, there may be several possibilities from which to choose. Our online Digest includes much of this information (click this link).
To speak with someone, call 888-778-2733, and ask for Technical Support for Circuit Breakers.