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Does Active Controls ActiveStart Plug-In Soft Start # AS44FR Work with Automatic Transfer Switch  

Updated 05/26/2026 | Published 07/16/2025

Question:

Does this model work with RVs with an automatic transfer switch?

0

Expert Reply:

Hey Paul, yes the Active Controls ActiveStart Plug-In Soft Start # AS44FR will work just fine with an automatic transfer switch. You'd want to run it after the transfer switch.

expert reply by:
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Jameson C
Paul profile picture

Paul

7/16/2025

I don’t understand what you mean. How would I bypass the transfer switch with a plug in device?

Jameson C. profile picture
Etrailer Expert

Jameson C.

7/16/2025

@Paul I am sorry for confusion. You don't bypass the transfer switch with the Soft Start kit.
Paul profile picture

Paul

7/16/2025

I should have included the fact that I’m looking for plug in soft start functionality for a 2023 Thor Acis with a built in automatic transfer switch.

Jameson C. profile picture
Etrailer Expert

Jameson C.

7/16/2025

@Paul Yeah it will work just fine for you.
Willow profile picture

Willow

5/24/2026

I have a 2013 heartland landmark mesa and i believe it has a transfer switch. It is a 50amp 5th wheel and i am stationary with a 30amp power source. i want to know if this device will work with a transfer switch and a link to how to install it. Is it still plug and play with a transfer switch? Will it run my 2 15,000 btu units at the same time? Thanks so much, Willow

Jameson C. profile picture
Etrailer Expert

Jameson C.

5/26/2026

@Willow Yes, a 30-amp ActiveStart soft start can work with a 50-amp transfer switch, but it must be hardwired downstream of the transfer switch (between the switch and the air conditioner).

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