Specifically engineered and purpose built for modern electric brake installations

Installation of aftermarket accessories in modern vehicles with Can Bus systems can require additional precautions to prevent unexpected or undesirable interactions with those systems.
A good example of such an accessory is an electric trailer brake controller. To block those interactions (to, for example, adaptive cruise control, stability control, downhill assist etc) REDARC has developed the EPDK-001. This is suitable for use with in-vehicle electric trailer brake controllers, including the REDARC Tow-Pro Elite.
The Encapsulated Protection Device has been developed by REDARC to allow normal operation of an electric brake controller, including activation of trailer brake lights during manual override without interfering with vehicle Can Bus which can be known to occur in the often-harsh environment encountered in vehicles, both on road and off road.

REDARC says that the following points should be considered:

• The EPDK-001 is suitably rated – it is important the module be suitably rated, not only for current but also for voltage drop. Some diodes may be under rated and will tend to overheat and short circuit, so it no longer blocks feedback to the vehicle system, resulting in a number of possible problems, including dash fault lights, turning off cruise control (not desirable in a trailer sway situation) or interfering with onboard safety equipment or AEB etc. If the over current is high enough, it can even cause the diode body to split and go open circuit. This results in the vehicle brake pedal no longer activating the trailer brakes or brake lights.
• The EPDK-001 is mounted on a heatsink – as a diode dissipates power during operation, REDARC have attached the REDARC module to a heatsink to protect it from the excessive temperature rise and safely dissipate the heat generated during normal operation.
• The EPDK-001 has secure lead terminations – diode leads tend to be relatively fragile compared to the wires they need to be connected to, especially in a harsh under-chassis installation. Any stress or movement of those wires will invariably end up on those fragile diode leads, concentrated at the point where they enter the diode body, making them very prone to breaking off. In fact, those leads tend to break after being flexed just a few times. This results in the vehicle brake pedal no longer activating the trailer brakes or brake lights.
• The EPDK-001 has superior weather protection and mounting points – if a diode is installed with its leads/wire joins exposed to water from road spray etc, corrosion will set in very quickly, soon fracturing the leads, usually right at the diode body. This also results in the vehicle brake pedal no longer activating the trailer brakes or brake lights.

REDARC says its module, including the diode circuitry, heatsink and wire terminations, is fully encapsulated in a plastic over-moulded package that includes channels to allow non-slip secure mounting with cable ties.
It says that before using a diode, you should ask: is it suitably rated, it is mounted on a heatsink, does it have secure lead terminations, does it have superior weather protection and can it be securely mounted?
REDARC advises that many installers advise they typically solder wires onto a diode’s leads, before putting a heatshrink sleeving over the joints and wrapping it in duct tape in the hope it will be waterproof. Then they need to find a way of securing it with cable ties to try not to bend or add further stress to the diode leads.
By choosing the REDARC Encapsulated Protection Device, REDARC says you are using a high-quality waterproof module with a mating waterproof connector and 500mm colour coded leads to ensure a quality and trusted installation every time.

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