How to Protect Circuit Breakers and Electrical Connections on a Trailer

Updated 09/02/2014 | Published 08/31/2014

Products Featured in This Question

Circuit Breaker - 30 Amp - Perpendicular Mount Bracket - Cycling Auto Reset - Metal - Type I

(35)

$10.48

Pollak 7-Circuit-Breaker Junction Box

(14)

$60.24

Question:

Can these automatic circuit breakers be installed directly to the trailer undercarriage and exposed to the elements? Or do you recommend putting them in an enclosure, and if so, which enclosure do you recommend?

asked by: Bob

Helpful Expert Reply:

I strongly recommend protecting any circuit breakers, including the Pollak 30-Amp Auto Reset Circuit Breaker, # PK54230, from the elements. Corrosion and road grime can build up on the terminals and cause problems.

We typically use junction boxes, like part # PK52249, to protect electrical contacts on a trailer. These boxes have rubber grommets in the access holes for wires to keep water and dirt out. They can bolt to any surface strong enough to hold a plastic box.

expert reply by: John H