An automatic transfer switch (ATS) seamlessly switches your RV between shore power and generator power without manual intervention. When shore power drops or you start your generator, the ATS detects the new source and transfers the load—no unplugging required and no risk of backfeeding.

How automatic transfer switches work

• The ATS monitors both power inputs (shore and generator).
• When the primary source fails or a secondary source becomes available, it switches within seconds.
• Built-in time delays prevent rapid switching that could damage electronics.

Choosing the right ATS

• Amperage rating: Match your RV's service—30-amp or 50-amp.
• Number of poles: 30-amp RVs use 2-pole switches; 50-amp RVs typically need 4-pole.
• Surge protection: Some units include built-in surge protection for added safety.
• Brand compatibility: Most aftermarket ATS units work with any generator, but verify specs.

When to add an ATS

• You run a generator frequently and want hands-free switching.
• You are adding a generator to an RV that did not have one.
• You want surge protection integrated into your power system.

Installation requires working inside your RV's power distribution panel. If you are not comfortable with electrical work, have a qualified technician install it.

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