Electric trailer brakes
Choose a controller that matches your trailer, tow vehicle, and the way you pull. Northline carries time-based and proportional options for dependable brake response on the road.
Start with the trailer
Trailer brake controllers give the tow vehicle a way to activate electric trailer brakes. The right choice is not just about the controller on the dash. It depends on the number of brakes on the trailer, the towing setup, and how much control you want while slowing down.
Before you buy, confirm that your trailer has electric brakes and count the brake assemblies. Then look at how often you tow, where you tow, and whether you want a straightforward time-based setting or braking that responds more closely to vehicle deceleration. Those details make the product conversation much more useful.
A good controller decision keeps the next step clear. You should know what the trailer needs, what the vehicle can accept, and where to get help if the connection or installation is unclear. That makes it easier to choose a controller before a tow, rather than trying to solve a brake-control problem when the trailer is already loaded.
Find your fit
Time-based control
A time-based controller applies power according to the gain and timing settings you choose. It is a practical option for drivers who want a straightforward controller and are comfortable dialing in the feel for their trailer and load.
Northline's current selection includes time-based options designed for two to six or two to eight trailer brakes. Check the product rating against your trailer before ordering.
Proportional control
A proportional controller uses a motion sensor to respond to deceleration. When the tow vehicle slows more firmly, the controller can send a stronger signal to the trailer brakes. This can feel more natural when towing regularly or carrying changing loads.
Choose this style when responsive brake behavior and additional adjustment matter to your setup. Confirm controller capacity, vehicle compatibility, and installation requirements before purchase.
Choose with confidence
If the trailer is part of your regular work, the controller needs to be easy to adjust and easy to trust. A trailer that is lightly loaded one day and carrying equipment the next can feel different under braking. Start with the number of electric brake assemblies, then consider how often the load changes. A proportional controller can be a strong fit when you want braking response that follows how firmly the tow vehicle is slowing down. A time-based controller can be a dependable option when you prefer a simple, repeatable setting you can adjust for the trailer in front of you.
Neither style removes the need to set up the system correctly. The goal is to choose a controller whose capacity and adjustment range fit the trailer, then confirm the wiring, connection, and installation details before your next trip.
For a trailer that comes out for seasonal projects, weekend hauling, or a familiar route, simplicity can matter more than extra adjustments. A time-based controller gives you a clear starting point: set the gain and timing for the trailer, test the response in a safe area, and make changes when the trailer, load, or conditions change. Northline offers time-based controllers with ratings for multiple brake counts, so the important question is whether the product matches the brake assemblies on your trailer.
Even occasional use deserves a careful check before towing. Verify that the trailer connector is in good condition, the breakaway system is ready where required, and the controller is properly installed in the tow vehicle. A controller is one part of the braking system, not a substitute for trailer maintenance.
Controller listings often refer to the number of trailer brakes they support. That figure is useful because it helps narrow the selection, but it is not the only fact to compare. Count the electric brake assemblies fitted to your trailer and check the controller's stated range. A tandem-axle trailer may have four brake assemblies, while other setups may have fewer or more. If you are unsure, look at the trailer documentation or contact Northline with the details you have.
It also helps to separate brake controller capacity from trailer weight ratings. A controller should be chosen for a compatible electric-brake setup. Your tow vehicle, hitch, trailer, tires, cargo, and braking system still need to be appropriate for the load and used within their individual ratings.
Brake controller installation can involve a vehicle-side connection, a compatible trailer plug, a mounting location, and a test of the completed system. Some tow vehicles are equipped for a more direct connection, while others may need additional wiring or an adapter. The right answer depends on the vehicle and the controller. Before ordering, have the tow vehicle year, make, and model ready along with a photo or description of the trailer connector if possible.
Once the controller is installed, follow the product instructions for the initial settings and test the trailer brakes in a safe, open area. Do not rely on a quick driveway check alone. The final adjustment should reflect how the trailer responds when moving, and it may need to be revisited when the load, road conditions, or trailer changes.
Before you order
For questions about wiring and connectors, Northline also carries trailer-side and vehicle-side connection parts. Getting the controller and connection setup right together helps avoid a last-minute mismatch when it is time to tow.
Browse trailer wiring and connectors ›These controllers are available through Northline's current parts catalog. Product details list the supported brake count and control style so you can compare options before adding one to your cart.
Not sure which one fits?
Bring the brake count, tow vehicle details, and trailer connector information. Northline can help you narrow the catalog to a controller that makes sense for your next pull.
Frequently asked questions
If your trailer uses electric brakes, the tow vehicle needs a compatible brake controller to send a braking signal to the trailer. Check your trailer, vehicle, and local requirements before towing.
A time-based controller applies braking power according to the setting and a timed ramp. A proportional controller senses deceleration and adjusts brake output to match how the tow vehicle is slowing down.
Northline's current selection includes controllers rated for two to six or two to eight trailer brakes. Confirm the brake count on your trailer before choosing a controller.
Yes. Call or email Northline with your trailer's brake count, tow vehicle, and the kind of towing you do. The team can help you narrow down a practical option.
