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Hayes Brake Controller - Proportional Controller - HA100400C Review

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Review of Hayes Brake Controller HA100400C

Speaker 1: Today we're taking a look at the Hayes air-actuated trailer brake controller. The brake controller activates your trailer brakes in proportion to your vehicle's braking action. It activates immediately so there's no pausing, like with time-delayed brake controllers. The air-activated controller ties in to your vehicle's air brakes to sense the amount of pressure that you apply to the brakes, so thus, you don't automatically adjust the trailer's braking based on how you depress the brake pedal in your tow vehicle. The rate of brake application can be increased or decreased by turning the controller handle. Also, right here, there's a red LED indicator on the front of the unit that shows when the trailer's brakes are applied, and the light will glow brighter as trailer output increases.

The unit also features hazard flasher immunity that prevents pulsing of the brakes when flashers are activated. It does have the slide bar manual override. It's a nice, compact controller. Has a black textured finish to it, metal construction. It also comes with the mounting bracket and hardware to get it mounted, so it would basically just sit like this, and then you can mount it in a convenient location with the included hardware.The product is made in the USA.

It's designed for tow vehicles with air brakes and trailers with up to four axles or eight brake assemblies. This is designed for use with electric brakes or electric over-hydraulic trailer brakes. When it comes to wiring, the white wire is the ground, black wire is the main power wire, and then the red wire goes to the brake light switch, and the blue wire is positive power to the trailer brakes.A few measurements to go over with you real quick. Overall length from this point here to this point here measures about 8 1/2 inches. Overall width, side to side, is about three inches, and the overall thickness is about one inch.

Then when it comes to the air input port thread size, we're looking at 1/8 inch MPT.That's gonna do it for today's look at the Hayes air-actuated trailer brake controller.

Max M.


Very well presented.

Etrailer Expert

Mike L.


Info for this part was:

Employee Cole B
Installed by:
Cole B

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