Surge Protection

Surge Guard 50 amp 120/240 volt automatic transfer switch by Southwire.

Automatic Transfer Switch

The Hughes Autoformers 50 amp RV power-boosting Autoformer (RV220-50-SP) has the same performance and reliability as the original RV220-50, now with advanced surge protection built-in! The unit offers 4,800 Joules of surge protection and constantly monitors incoming power to protect against spikes or surges. As an extra feature, the surge/spike protection module is also replaceable. In the event of a massive spike, the surge unit will take the hit, ensuring your booster and – more importantly – your RV is not damaged.

This replacement surge protection module is only for the PWD50 unit. It is designed for use only with the non-EPO version.

This replacement surge protection module is only for the PWD30-EPO and PWD30-EPO-H units. It is designed for use only with the auto-shutoff versions.

This 30 amp replacement surge protection module is only for the PWD30 unit. It is designed for use only with the non-EPO version.

Hughes Autoformers 30 amp Power Watchdog Smart Surge Protector offers 3,000 Joules of advanced surge protection for your coach. It features advanced circuit analysis to automatically shut off power in an emergency and includes our patented Bluetooth connectivity so you can monitor live park power conditions on your smartphone using their free mobile app.

Southwire's power protection devices are designed to protect your RV’s electrical system and sophisticated electronics from the dangers of faulty electrical power. This Surge Guard protects against high/low voltage, miswired pedestals, open neutral, open ground, reverse polarity, high neutral current, surges, and overheating plug/receptacle.