The LV839491 is a pre-wired chassis terminal block for MasterPact MTZ2 and MasterPact MTZ3 drawout circuit breakers. It carries the wiring for three circuits: PTE (push-to-trip), SDE2/RES (alarm/reset), and M2C/ESM (motor mechanism/energy status module). The block arrives pre-terminated, so it saves panel wiring time during breaker installation or swap-out.
Mounts in the drawout cradle of MasterPact MTZ2 or MTZ3 frames. The three-wire harness connects the breaker's auxiliary and control circuits to the panel wiring without field-terminating each conductor. Rated for the wiring application only — it is the interconnection block, not a signal conditioner or relay interface.