Westinghouse HKB2175T Circuit Breaker Trip Unit

The Westinghouse HKB2175T Circuit Breaker Trip Unit provides magnetic overcurrent and short‑circuit protection for 600 volt power circuits in industrial electrical distribution systems. This 2‑pole unit, rated 175 Amp, is designed as a breaker‑mounted trip assembly compatible with Westinghouse circuit breakers and switchgear, leveraging a magnetic trip mechanism to rapidly interrupt fault currents. It is commonly installed in switchgear assemblies, motor control centers, commercial electrical panels, and broader industrial power distribution systems where dependable protection and interruption are required. Applications span manufacturing facilities, commercial infrastructure, utility distribution, industrial automation equipment, and motor control applications that demand reliable 2‑pole overcurrent protection. Common replacements include Eaton HKB2175T, Cutler‑Hammer HKB2175T, and Westinghouse HKD2175F.