Flex Systems
Trailer Wiring Made Simple
Durable, modular trailer junction boxes built for harsh New Zealand conditions.Clean installs. Reliable connections. No guesswork.
Rear Trailer
5 Way & 7 Way Junction Box's avaliable
Built for clean, reliable trailer wiring.Modular wiring layout
Clean internal organization
Durable weather-resistant enclosure
Designed for trailer applications
Simple installation
Built the Right Way Inside
Clearly labelled terminals for quick wiring
Neat internal layout — no clutter, no confusion
Secure cable entry with proper gland fittings
Built to handle vibration and outdoor conditions
Easy access for installation and future maintenance
Specifications
5 Way Junction Box
Dimensions: 120mm × 90mm × 40mm
Enclosure: Durable, weather-resistant housing
Cable entry: M16 nylon glands
Cable range: 4–8mm
Terminals: Screwless Wago-style lever terminals
Wiring configuration: Tail, Earth, Brake, Left & Right Indicators
Mounting: M5 pre-drilled enclosure
Application: Rear trailer wiring systems
7 Way Junction Box
Dimensions: 120mm × 112mm × 40mm
Enclosure: Durable, weather-resistant housing
Cable entry: M16 nylon glands
Cable range: 4–10mm
Terminals: Screwless Wago-style lever terminals
Wiring configuration: Tail, Earth, Brake, Left & Right Indicators, Reverse and Aux
Mounting: M5 pre-drilled enclosure
Application: Rear trailer wiring systems
Why Flex Systems
Engineered for reliability. Built for the real world.• NZ made — built for real working conditions
• Built from real-world trailer wiring experience
• Built to handle vibration, weather, and hard use
• Clean, professional wiring — no more messy installs
