ALL RV Surge Protectors WILL need to be REPLACED after a large VOLTAGE SURGE. Our RV 50 AMP surge protectors ABSORB voltage spikes, PROTECTING your RV's electrical components and SAVING you from EXPENSIVE REPARIS PROTECT YOUR RV ELECTRICAL EQUIPMENT from COSTLY voltage spikes and power surges. The LATCH.IT RV 50 amp surge protector is designed to ABSORB UP TO 5000 JOULES of HIGH-VOLTAGE SPIKES. The HEAVY-DUTY COPPER WIRE is able to withstand higher power loads and used thick INSULATION to keep internal parts from melting or catching on fire. 24/7 CIRCUIT ANALYZER on our surge protector for RV lets you DETECT WIRING FAULTS IN YOUR POWER SOURCE BEFORE CONNECTING TO IT. The WIRING LED INDICATORS on the 50AMP RV surge protector constantly monitor wiring faults when the protector is plugged in. Our RV surge protector is rated for 120 Volts, 12,000 Watts, and will withstand a power spike of up to 5000 Joules. Your camper is protected even when youre sleeping or away from your RV!