Sensata Technologies UPL12-29287-1-V Circuit Breaker

Sensata Technologies Airpax UPL12-29287-1-V is a panel-mount circuit breaker that provides overcurrent protection for electrical circuits and combines a hydraulic-magnetic mechanism with a lever actuator to allow reliable manual operation in enclosed equipment. As part of the UPL series, this Magnetic (Hydraulic Delay) device is designed to interrupt fault currents quickly while suppressing nuisance trips, with a rating of 40 A at 250 V as noted in the product description. The unit carries the Sensata Airpax branding, is RoHS compliant, and, according to distributor catalogs, is currently listed as obsolete or no longer in production, reflecting its status as a legacy component. With panel-mount compatibility and a lever-style actuator, the UPL12-29287-1-V fits standard enclosure installations where accessible overcurrent protection is required.