The AIRPAX / SENSATA PGFM-111-B-A1 is a GFCI Ground Fault Protection Sensing Module designed to detect and respond to ground faults in electrical systems. This reliable and efficient module helps to ensure the safety of both personnel and equipment by quickly shutting off power in the event of a ground fault. Trust the PGFM-111-B-A1 for advanced ground fault protection in a variety of applications.