This Automatic Transfer Switch from Southwire is a must-have for RV, trailer, and camper owners who want to ensure uninterrupted power supply during their travels. Designed to handle up to 50 amps, this Surge Guard protects your electrical system from power surges and automatically switches to an alternative power source in case of an outage.Whether you're planning a long road trip or camping in the wilderness, this reliable and easy-to-use Transfer Switch guarantees a hassle-free power supply. Don't let power outages ruin your adventure; get your hands on this Surge Guard today! Bumper to bumper from faulty park power. Time Delay at Power Up Shore 3-4 Sec. 50 FLA Rated Contactors (Full inductive load rated). 2600 Joules at 76,400 Amps. Dimensions: 8.84" W x 12.75" L x 5.21 D.