Use standard 5 core wiring for an unbraked trailer, or if using hydraulic disc brakes. Use the following diagram for the junction box wiring. For a trailer fitted with electric drum brakes, use 7 core wiring. Use the following diagram for the junction box wiring. On the next page, we will deal with routing the cable through the trailer -. Your Kea trailer is wired in the factory to the International Specification for a 7 pin flat trailer plug. Kea use electrical cable that contains five coloured wires to control the primary light functions of your trailer. The two pins each side of the central earth pin are not used and control Auxiliary and Reverse functions.
Standard NZ Trailer Wiring Diagram PRO TIP Trailer Lighting • All NZ trailers must be fitted with ADR compliant lights. • Rear tail lights are to be fitted on the outer extremities of the trailer to show how wide the trailer is. • Minimum lighting requirements for trailers is x2 red tail lights, reflectors, turn indicators and a number.. Trailer Parts & Accessories; Batteries & Power Storage; Camping; Caravan Accessories; Directories & Maps; Fridges & Chilly Bins; First Aid Kits; Fuel & Water Storage;. Trailer Lamps; Trailer Wiring; Light Boards; Back Caravan Electrical. Shop All Caravan Electrical; Main menu Oils, Fluids & Filters.