The GFTR1-W is a Tamper Resistant Ground Fault Circuit Interrupter (GFCI) receptacle designed to quickly stop the flow of electricity in the event of a ground fault, preventing serious injury. It is rated for 15A and 125VAC at 60Hz, and also features a 20A feed-through capability to provide protection for other receptacles on the same circuit. This device includes a self-test feature to periodically confirm its functionality and a tamper-resistant shutter mechanism for safety. It is designed for use with copper or copper-clad wire and must be installed according to national and local electrical codes.