Westinghouse HLB3090T is a 3-pole LB HLB circuit breaker trip unit rated for 90 Amps, designed for use in Westinghouse LB HLB-series breakers. It provides the protective tripping function that governs overcurrent protection for compatible equipment. The part number HLB3090T uniquely identifies this trip unit for ordering and installation in LB HLB family circuits.
