120V-240VAC Ground Fault Circuit Breaker PARAMETER: Rated Current: 50 A; Rated Voltage: 120-240 VAC ;Surge Protection: 20 kA;Leakage Protection: 30 mA PROVIDES 5-IN-1 PROTECTION: 2-pole solar circuit breaker offers surge, overcurrent, short circuit, 30mA leakage, and isolation protection for reliable system safety EASY INSTALLATION: Installs quickly on standard 10 CM DIN rail—ideal for distribution boxes and control panels WIRING INSTRUCTIONS: Upper input, bottom output; both input and output ground wires must connect to the ground terminal for proper function TESTING INSTRUCTIONS: After wiring is complete, switch the handle ON. Red and green LEDs will light up to indicate normal status. Press the "T" button to test leakage function. WIDE APPLICATIONS: Ideal for residential, commercial,industrial,outdoor and lightning-prone areas