One of the most common questions we get is: Which hitch should I buy for my camper trailer—an override brake unit or an electric brake unit? The answer depends largely on what you plan to do with your trailer and the type of towing you’ll be doing.
Override Brakes
Override brakes, which can be either hydraulic or cable-pull, are typically used for trailers not exceeding 2 tonnes. These brakes are not dependent on a 12V power supply, making them ideal in certain situations—especially for boat trailers.
Why Choose Override Brakes?
- Best for Boat Trailers: Override brakes don’t rely on electrical power, making them more suitable for trailers that are submerged in water, such as boat trailers. Saltwater and electrics don’t mix well, and using electric brakes in this situation can lead to rapid wear or failure.
- Towing Capacity: Override brakes are suitable for trailers up to 2 tonnes. Anything over this requires electric brakes.
Electric Brakes
Electric brakes, on the other hand, offer much higher towing capacities and more control. The OzHitch 3.5-ton coupling, for example, is perfect for heavy-duty towing setups. Electric brakes are the preferred option for most applications outside of marine use due to their versatility and enhanced functionality.
Benefits of Electric Brakes:
- Higher Towing Capacity: Electric brakes are essential for trailers exceeding 2 tonnes, offering better braking power and control for heavier loads.
- Handbrake Flexibility: The handbrake can be installed away from the hitch, improving clearance for tailgates or doors.
- Suitable for Multi-Axle Trailers: Ideal for larger caravans and trailers with multiple axles or hubs.
- Adjustability: Electric brakes provide more precise control, with adjustments possible from inside the vehicle.
- Safety: In the event of vehicle brake failure, electric brakes can be applied manually, providing additional stopping power.
- Off-Road Advantages: Especially useful in off-road situations, electric brakes perform better during hill descents and navigating difficult tracks.
- Ease of Reversing: Electric brakes do not require the driver to get out of the vehicle to engage or disengage the ram stopper when reversing, a common frustration with override systems. This makes them ideal for reversing on difficult terrains without interruptions.
Regulations and Towing Capacity: What You Need to Know
Before choosing your brake system, it’s important to consider your vehicle’s GTM (Gross Trailer Mass) and towing capacity. Here are some guidelines:
- Trailers up to 750kg GTM: No brakes required.
- Trailers over 750kg and up to 2,000kg GTM: Brakes must be installed on at least one axle.
- Override Brakes: Acceptable for trailers up to 2,000kg GTM but not permitted for trailers exceeding this limit.
- Trailers over 2,000kg GTM: Must have brake-away brakes, which automatically engage if the trailer becomes detached. These trailers must also have brakes on all wheels and the brakes must be operable from the driver’s seat.
Pro Tip for Maintaining Your Brakes
Whether you’re using hydraulic, cable-pull, or electric brakes, regular maintenance is key to prolonging their lifespan and ensuring safety. After off-road use or exposure to water (especially saltwater), it’s important to remove the hubs and clean out any mud, salt, or debris. This helps prevent corrosion and keeps vital brake components—such as drums, discs, shoes, and pads—from seizing, which could lead to brake failure and accidents. Regular cleaning and servicing will significantly extend the life of your brakes and keep you safe on the road.
Which Brakes Are Right for You?
In summary:
- Choose Override Brakes if you’re towing a boat trailer that gets regularly submerged in water.
- Choose Electric Brakes for anything else, especially if you need higher towing capacity, greater adjustability, or plan to tow in challenging off-road conditions.
For most applications, electric brakes are the superior option due to their better control, ease of use, and safety features—but when it comes to boat trailers, override brakes are the way to go.
