Protect From Damaging Power Surges When Connected To Campground Power Supply; Portable; 50 Amp/ 120-240 Volt/ 12000 Watt; 5-Mode Surge Protection With 45000 Amp Maximum Current Spike; With 3-Color LED Fault Indication Lights; Detects Open Ground/ Open Neutral/ Reverse Polarity; With Weather Resistant Case; With Rugged Pull Handle And Locking Bracket; CSA/ CUL Approved