GFCI receptacles are designed with the safety of the user in mind. In commercial and industrial areas like public bathrooms, breakrooms and food service areas, the NEC requires GFCI receptacles. Arrow Hart self-test GFCI receptacles are UL listed and fully compliant with all of the latest UL943 Class A GFCI and UL498 requirements. The self-test GFCIs conduct an automatic test periodically to ensure GFCI protection. The device will trip and will not reset if GFCI protection is not available. Additionally, GFCIs incorporate a safety lock-out function to protect against miswired line load connections and GFCI circuitry damage.Performs periodic self-tests to ensure integrity of GFCI protectionAutomatic grounding system eliminates need for bonding jumper in grounded metal enclosure, provides redundant measure of ground continuity where jumper is usedGround termination with back wire clamp provides secure wiring and reduces installation timeTamper-resistant shutters resist the insertion of foreign objectsLine side terminals are backed out and staked for fast installationHorizontal test/reset button alignment provides larger unobstructed areaTest and reset buttons are color matched to provide great aestheticsTapered back wire openings handle multiple wire sizes and types for applications up to #10 AWG solid or stranded wireWhen downstream receptacles are wired from load side, a 20 A feed-through rating offers full protection