How Much Power Does a 10 Inch Trailer Brake Assembly Draw

Updated 02/11/2016 | Published 02/10/2016

Products Featured in This Question

Dexter Nev-R-Adjust Electric Trailer Brake Assembly - 10" - Left Hand - 3,500 lbs

(348)

$113.47

Dexter Electric Trailer Brake Assembly with Parking Brake - 12" - Left Hand - 6,000 lbs

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$222.50

Dexter Electric Trailer Brake Assembly with Parking Brake - 12" - Right Hand - 6,000 lbs

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$198.20

Dexter Parking Brake Kit with Breakaway for Hydraulic Drum Brakes

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$392.19

Question:

I am looking for a tow-bar interlock that would prevent moving the trailer under certain conditions. This would need to function like a parking brake. How much current does the electric brake require to engage? I need to calculate battery drain. Thanks,

asked by: Ed U

Expert Reply:

On a 10 inch brake assembly such as # 23-468 the magnet draws 3.2 to 4 amps at 12 to 13 volts.

There are actually trailer brakes that have a parking brake feature such as # 23-113 that you can use with kit # T2385200. With this set up you would be able to manually set the brakes without worrying about battery drain.

The only issue is in electric drum brakes assemblies that have a parking brake feature only come in 12 inch assemblies # 23-113 and # 23-112.