An automatic power transfer switch lets you seamlessly blend multiple AC power sources—shore power, a generator, or an inverter—without manual intervention. When shore power is available, it automatically switches your RV systems to that source, then back to your generator or inverter when you’re mobile.

Ideal for campgrounds and boondocking, this heavy-duty relay-based switch handles the switching for both line and neutral connections, with an optional 20-to-25 second delay for generator startups.

• 30-amp capacity at 120 volts
• Automatic switching between two AC sources
• Double pole double throw (DPDT) relay for both line and neutral
• Optional 20-to-25 second delay via DIP switch settings
• Dimensions: 9 inches long, 8.4 inches wide, 3.2 inches tall
• Black finish, mains powered
• 2-year limited warranty