Airpax UPG11-1-66-153-01 is a two-pole circuit breaker from the APG/UPG-11 family, rated for 15 A at 250 VAC and suitable for 50/60 Hz AC service. The -66 suffix indicates screw-terminal construction, and the two-pole unit uses internally coupled trip mechanisms with a single toggle handle. This device is designed for panel-mounted protection in electrical systems that require simultaneous interruption of both poles on overcurrent events. As a genuine Airpax/Sensata component, it is listed in the Sensata Airpax catalog as a two-pole APG/UPG-11 unit with screw terminals.
