How Many Amps Should be At Trailer Brake Assemblies

Updated 12/03/2018 | Published 12/01/2018

Question:

how many amps should the brake wire send to brakes

asked by: Ed A

Helpful Expert Reply:

If you are testing the voltage at the trailer brake assemblies by activating the manual override on your brake controller you should be getting close to 12 volts as long as the controller is at its highest setting. The amperage draw for each brake magnet should be around 3.2 to 4.0 max amps if you have 12 inch assemblies.

Please let me know if you aren't getting enough voltage at the brakes or are having any issues with their performance and we can go through some troubleshooting steps. I have also attached an article on testing the brake magnets that you might find helpful.

expert reply by: Chris R