Redarc Trailer Brake Controller
- RED52VR
- Electric
- Electric over Hydraulic
- Proportional Controller
- Redarc
- Indicator Lights
- Up to 2 Axles
- Dash-Mounted Knob
- Hidden
- Automatic Leveling
Mount the control knob of this proportional brake controller on your dash for a factory look, and install the main unit out of sight behind the dash with the included wiring harness. Control your braking power with the turn of a dial.
Features:
- Brake controller activates trailer brakes in proportion to your vehicle's braking
- Automatically adjusts trailer's braking based on deceleration of tow vehicle
- Dash-mounted knob keeps your vehicle interior looking sleek while giving you easy access to the brake controller
- Lets you adjust braking power with the turn of a dial
- Gives you a manual override at your fingertips
- Offers simple diagnostics with colored LED alerts
- Main unit mounts out of sight behind the dash in any position, direction, and angle
- No more banging your knee on a bulky controller
- No interference with airbags or other vehicle accessories
- Universal wiring harness lets you connect to a vehicle without a factory tow package
- Plug-in, vehicle-specific adapter (sold separately) can be used to reduce installation time on certain vehicles
- Meets or exceeds both UNECE R21 and FMVSS 201 regulations for sustainability and safety
- Made in Australia
Specs:
- Application: trailers with up to 2 axles (4 brake assemblies)
- Compatible with electric or electric-over-hydraulic trailer brakes
- Main unit dimensions: 4" long x 3-3/8" wide x 1-1/8" tall
- Control knob dimensions: 1-7/8" long x 9/16" wide x 3/4" tall
- Length without dial: 1-1/4"
- Output voltage range: 9V - 16V
- Output current rating: 18 amps continuous
- Maximum charging voltage: 12V DC
- 2-Year warranty
Proportional Braking
![What is proportional Braking]()
The Redarc Tow-Pro Liberty Brake Controller comes equipped with proportional braking to give you the best towing experience. Proportional braking means that your trailer brakes mimic your tow vehicle's brakes. If you slam on the brakes in your vehicle, your trailer brakes will activate with the same intensity; if you brake lightly, your trailer brakes lightly too. The trailer's braking is in proportion to your vehicle's braking. This saves wear and tear on the tires and the brakes on both your vehicle and trailer.
The Tow-Pro Liberty uses an internal 3-axis accelerometer to sense how your vehicle is braking so it can send the right amount of braking power to your trailer. It measures the inertia of your tow vehicle and activates the trailer's brakes to slow at the same rate. The result is uniform braking across your towing setup. No push-pull action - just smooth, proportional braking every time.
Tow-Pro Liberty Operation
The dash-mounted knob puts control of your trailer's brakes at your fingertips. In addition to offering fast, simple power adjustment and an easily accessible manual override, it has colored LED signals that let you know what the brake controller is doing at a glance.
![Redarc Tow Pro Liberty Calibration]()
When you are calibrating the brake controller for the first time, the LED lights will signal your progress. To finish setting up the device, you will need to drive your vehicle in a low-traffic area and brake 20 times or so to let the unit learn its orientation and the direction of travel. If your trailer is connected, the LED light will flash green/blue as it processes the information. If there is no trailer connected, the unit will still calibrate, just without the knob lighting up. The knob will stay blue longer as the calibration process gets closer to being done. When the display turns solid blue, initial calibration is complete. The unit will remain calibrated for the next time that you tow. If recalibration is required, it will happen automatically and without LED indication.
Once the brake controller is activated, you can use the knob to set the maximum amount of power that will be applied to your trailer's brakes. Typically, this power is only readjusted when you experience changing road conditions or if you switch over from a heavy, loaded trailer to a much lighter, empty trailer, or vice versa. To get more power to your brakes, rotate the knob clockwise toward 10. To decrease the power output, rotate it counterclockwise toward 0.
![Redarc Tow Pro Liberty Braking Output Red Light]()
When you apply the tow vehicle's brakes, the knob will change from blue to red to signal that the trailer brakes are being activated. The higher the braking power output, the deeper the red that you will see.
![Redarc Tow Pro Liberty Manual Override]()
The Tow-Pro Liberty keeps the manual override within easy reach, great for stopping sway or controlling your trailer's momentum in emergencies. To engage the manual override, just press the control knob. This will activate the trailer's brakes and brake lights without you having to apply the brakes on your tow vehicle, perfect for limiting trailer movement while you're cruising.
![Redarc Tow Pro Liberty review]()
Simple, Out-of-the-Way Installation
Unlike most proportional controllers on the market, the Tow-Pro Liberty has almost no mounting restrictions. It comes in 2 pieces - the main unit and the control knob. Because the only part that you need to be able to access is the control knob, the main unit can be mounted out of sight and out of the way. You don't have to worry about dinging your knee on a bulky brake controller or interfering with your vehicle's lower airbags.
![Redarc Tow Pro Liberty Dash Mounted Remote Knob]()
The dash-mounted control knob can be installed in any convenient spot that's easy for you to see and access. This can be a blank switch panel, an open spot on your center console, or wherever there's space on your dashboard. A universal mounting panel is included to ensure a clean, from-the-factory look. Custom-fit panels are available for certain vehicles as well. Before you do any drilling, be sure there's room behind the dash for the entire knob to install, including the part you don't see!
![where to install REDARC Tow Pro Liberty on 2023 Jeep Wrangler 4xe]()
Once you've decided where you want to put the control knob, you'll need to find a good place to install the main unit. Your only restriction is the 3' plug-in cable that has to be able to reach between both the main unit and the control knob. Securely mount the box using screws, double-sided tape, or zip-ties (not included). A mounting kit (RE67FR - sold separately) is also available for the Tow-Pro Liberty. Do not zip-tie the box to wiring or cables that can shift as you drive.
![REDARC Tow Pro Liberty Harness]()
The included wiring harness hardwires into your vehicle's wiring and then plugs directly into the main unit. You can also use a vehicle-specific wiring harness (sold separately) to cut down on installation time. These harnesses are available for most newer trucks and SUVs. One end of the custom harness will plug into your vehicle, and the other end will hardwire onto the Tow-Pro harness that plugs into the main unit.
For assistance in properly wiring the Tow-Pro Liberty, please refer to the diagrams below:
![Redarc Tow Pro Liberty Wiring Diagram]()
Installation Accessories
See etrailer.com's exclusive 7- and 4-way brake-control installation kit (ETBC7 - sold separately) if you don't already have a 7-way plug at the back of your vehicle.
Note: A 30-amp circuit breaker kit (331-CBK30-EB - sold separately) may also be required for installation.
EBRH-ACCNA Redarc Tow-Pro Liberty Brake Controller
TPH-025 Redarc Wiring Harness for Tow Pro Electric Brake Controllers
Installation Details 
This Product Fits The Following Vehicles
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