ITE / ABB
AC-PRO trip unit retrofit conversion kits are available for all vintages of ABB and I-T-E circuit breakers. Early vintage I-T-E circuit breakers, including the KA, KB, KC, KCE, KCG, LX, and LG styles air circuit beakers were all manufactured with electro-mechanical series overloads/dash-pot trip devices. These series trips include the OD and WB electro-mechanical trips.
Newer style ABB air circuit breakers, including the K, LK and MB breakers were all manufactured with a variety of different electronic trip units. URC stocks AC-PRO kits to replace all of these electronic trip units, including the Power Shield, SS, SST, Micro Power Shield and MPS-C 2000.
AC Circuit Breakers
DC Circuit Breakers