NEW ZEALAND MADE
Trailer wiring
made simple.
Durable trailer junction boxes designed for clean installations, reliable connections and straightforward wiring.
NEW ZEALAND MADE
Designed and manufactured locally.
CLEARLY LABELLED
Straightforward circuit identification.
LEVER TERMINALS
Fast, screwless wire connections.
12V & 24V
Suitable for common trailer systems.
OUR RANGE
Choose the junction box that suits your trailer.
Designed for common trailer wiring layouts, with custom solutions available where something different is required.
5 Way Rear Junction Box
Designed for standard rear trailer lighting using five common circuits.
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7 Way Rear Junction Box
Adds reverse and auxiliary circuits for trailers requiring a seven-circuit layout.
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2 Way Junction Box
A compact option for front marker lights and other two-circuit applications.
Learn MoreWHY FLEX SYSTEMS
Designed to make trailer wiring simpler.
Flex Systems products are developed from real trailer wiring experience, with a focus on making installation quicker, fault-finding easier, and delivering practical solutions for real-world trailer wiring.
Clearly Labelled
Every circuit is clearly identified, reducing wiring mistakes and making future servicing easier.
Lever Terminals
Fast, screwless terminals help speed up installation while providing dependable electrical connections.
Designed for Real Trailers
Purpose-built for trailer wiring rather than adapting a generic electrical enclosure.
BUILT INSIDE
Designed for straightforward installation and reliable connections.
Flex Systems junction boxes are designed around the practical details that make trailer wiring easier to install, identify and service.
01
Clearly Labelled Circuits
Every circuit is clearly labelled to reduce wiring mistakes and make future servicing easier.
02
Lever Terminal Connections
Screwless lever terminals provide quick, secure wire connections while helping maintain reliable electrical connections in demanding trailer environments
03
Weather-Resistant Construction
PETG construction and a fitted TPU gasket help protect internal connections from dust, moisture and everyday trailer conditions
04
Designed and Made in New Zealand
Developed locally for common trailer applications, with custom configurations available when required.