Utility Relay Company is a leading manufacturer of microcontroller based, true RMS solid state trip units for AC and DC power circuit breakers. The AC-PRO trip unit is designed for 600v class air circuit breakers. The ZERO-Hertz trip unit is designed for DC power circuit breakers and FKB traction power circuit breakers in the transportation industry.
URC retrofit conversion kits replace aging electro-mechanical series overload trip devices, thermal magnetic overcurrent releases, and older style electronic trip devices to provide greater accuracy, reliability, functionality and life extension of older circuit breakers at a fraction of the cost of a new circuit breaker without changing out the switchgear.
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