One popular primary injection test set capable of testing circuit breakers is the ETI PI-6000 Primary Circuit Breaker Test Set. The test set is capable of testing circuit breakers up to 6000 amperes frame size. Incorporating an output transformer with dual primaries to facilitate its use on power sources of 480 VAC as well as 240 and 208 VAC, and dual secondaries to provide optimal impedance matching to a wide range of breaker sizes, the ETI PI-6000, offers an internal voltage sensor that automatically configures the AC control power section to be energized only when properly configured for the applied voltage.
The ETI PI-6000 assesses low-voltage, molded-case and metal-clad, direct acting AC circuit breakers from various manufactures. The est can also be used on high current applications like ratio transformers, and heat runs.