What Size Wire Should Be Used With a 30 AMP Automatic Transfer Switch?

Updated 03/10/2023 | Published 03/07/2023

Products Featured in This Question

Go Power Automatic Transfer Switch - Plastic Case - 30 Amp - 120V

(32)

$143.99

10 Gauge Wire - Blue Primary - Per Foot

(102)

$1.79

Question:

Trailer: Jayco Jay Feather 24RL What size wiring should I use for the run to the transfer switch which I plan to mount near the control panel it appears from photos the pre-wired version comes with 14/3 SJOOW wiring. Seems like I would be okay with the same specs, anything wrong with going 12/3 SOOW? What are the specs on the fuse used inside the pre-wired box?

asked by: SC

Helpful Expert Reply:

You're going to want to use 10 AWG wire # 10-1-1 with your Go Power Automatic Transfer Switch - Plastic Case # 34264403.

Since this is a 30 amp ATS 10 AWG will be plenty, but if you were to use a 50 amp switch you'd want to beef that wire up to 6 AWG.

expert reply by: Bryce D