Legrand radiant 1597TRNICC4 15 Amp GFCI Self Test Tamper Resistant Decorator Duplex Outlet, Nickel (1 Count). MPN: 1597TRNICC4. Model: 1597TRNICC4. Part Number: 1597TRNICC4. The self-test GFCI conducts an automatic test every three seconds, ensuring it’s always ready to protect.