Secondary Injection Test Sets

Secondary injection testing is a compliance testing method in which a strong current is inserted directly into a trip relay to test a circuit breaker. As opposed to primary injection, secondary injection refers to the location the trip unit is located and does not call for testing the wiring or current sensors, but rather solely on trip unit operation. Users can choose either a single phase or a 3 phase test set depending on their application.

ATEC offers affordable secondary injection test set rental rates for single and 3-phase secondary injection test sets from leading manufacturers like GE, Siemens, ABB, and Cutler Hammer.