Outlet branch tamper resistant duplex arc fault circuit interrupter receptacle with back and side wire. Protects against arc faults in wiring resulting from damaged insulation and other causes that can lead to electrical fires. Tamper resistant products comply with 2014 NECĀ® Article 406.12 for all dwelling units. Meets and exceeds 10 kA short circuit testing and Underwriters Laboratories UL 1699A and UL 498 safety standards. Ground termination with back wire clamp provides secure wiring and reduces installation time. Line side terminals are backed out and staked for fast installation. When downstream receptacles are wired from load side, a 20 A feed-through rating offers full protection. Tri-combo head terminal and mounting screws.