Model Number: GPG620-TR-WTR Brand Name: GP Key Specifications/Special Features: Meet UL943(2016),CUL943( CSA C22.2 NO.144-06) and UL498 technical requirements.GP's permanent magnetics patent , which is smart and reliable.Easy wiring options – back and side wire capable.Cannot be reset if mis-wired (Line/Load reversal only) or GFCI protection is compromised.Self-Test feature ensures continuous protection.Automatically cuts off electricity in 0.025 seconds to protect against electrical shockUL&CUL fie NO.E320934.Supply voltage 125VAC 60HZ, 20Amp;Supply voltage range 102～132VAC;Trip threshold 4～6Ma;Trip time 0.025 Second.