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 Junction Box
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
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
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
