Narva 7 Core 4mm Suzi Coil runs power between your tug and trailer over a coiled lead that stretches to 4.6 metres when fully extended. The setup carries seven circuits so lights and auxiliary gear each get their own path through 6 x 2mm2 cores and a 3mm2 earth. The coil keeps spare length up off the road so it is less likely to drag when you tackle tight turns. This cable uses 2mm2 copper for the six active cores plus a heavier 3mm2 copper earth to handle return load across the full 4.6 metre reach. The twin 250mm straight tails at each end give space for plug connections and strain relief without crowding the coupling. The Suzi style spiral is a smart buy for Aussie towing where gear cops constant movement and plenty of dust across bitumen, gravel and corrugated tracks.

• Narva 7-core trailer Suzi coil cable
• Extends to 4.6 metres (15 ft)
• Six 2mm² conductors for active circuits
• One 3mm² conductor for earth/ground
• Two 250mm straight tails at ends
• Suzi coil design manages excess length
• Suits 7-pin style trailer wiring systems
• Supports multiple lighting and accessory circuits
• Helps reduce voltage drop via heavier earth core
• Appropriate for common light-vehicle towing setups

Q: Can this Narva Suzi coil be used on both box trailers and caravans?

Yes, it can be used on both as long as the setup uses a compatible 7-pin style connection. The 4.6 metre extended length works for many box trailers, camper trailers and smaller caravans. The seven cores give you enough wiring paths for brake, indicator, tail and auxiliary circuits. Just confirm your existing plugs and sockets match the cable ends you plan to fit.

Q: What is the advantage of having a 3mm2 earth core instead of all 2mm2 cores?

The 3mm2 earth core reduces voltage drop on the return path. A larger cross-sectional area means lower resistance across the 4.6 metre run. That helps keep lights closer to their rated brightness under load. It also gives more margin if you run extra circuits that share the earth return.

Q: How long are the straight tails at each end of the coil?

Each straight tail is 250mm long. This extra length gives room to route the cable around hitches or drawbars before it meets the plug or socket. The tails help reduce strain right at the connector body. That can extend the service life of your plugs in regular towing use.

Q: Is this cable suitable for 12V trailer lighting circuits?

Yes, it is suitable for standard 12V trailer lighting circuits that match the 2mm2 and 3mm2 core sizes. The copper conductors and insulation are commonly used across light-vehicle 12V towing setups. You still need to confirm your fuse ratings and load sizes match the cable capacity. Proper installation and termination will help the cable perform reliably over time.

Suitable for 7-pin trailer plug and socket setups using a Suzi coil style cable between tow vehicle and trailer. Extends up to 4.6 metres which suits common light trailer and caravan drawbar lengths. Uses 7-core wiring including a dedicated 3mm² earth/ground conductor for trailer circuits. Intended for use with compatible Narva or equivalent 7-pin connectors on towing vehicles and trailers.