PRODUCTS
Trailer junction boxes designed for practical installations.
Flex Systems junction boxes are designed to simplify trailer wiring with practical layouts, quality components and features that make installation and future maintenance easier.
Explore the RangePRODUCT RANGE
Choose the right junction box.
Select the wiring configuration that best matches your trailer. Each Flex Systems junction box is designed to keep wiring organised, clearly labelled and easier to install and maintain.
MARKER & CLEARANCE LIGHTS
2 Way Junction Box
A compact solution for marker lights, clearance lights and other simple two-circuit wiring applications.
- Ideal for secondary lighting circuits
- Compact 70 × 90 mm footprint
- Clearly labelled connections
MOST COMMON NZ CONFIGURATION
STANDARD TRAILER WIRING
5 Way Junction Box
Designed for the standard lighting circuits used on most New Zealand trailers.
- Suitable for most standard trailers
- Five clearly labelled circuits
- Makes installation and servicing easier
ADDITIONAL TRAILER CIRCUITS
7 Way Junction Box
Designed for trailers requiring additional circuits such as reverse lights, auxiliary power or electric braking systems.
- Reverse and auxiliary circuits
- Ideal for more complex trailer wiring
- Seven clearly labelled connections
Not sure which junction box you need?
Most New Zealand trailers are configured with a 5-way wiring system, making the 5 Way Junction Box the right choice for many standard trailer applications.
Need some advice? Get in touch.
MARKER & CLEARANCE LIGHTS
2 Way Junction Box
A compact junction box designed for marker lights, clearance lights and other simple two-circuit trailer wiring applications.
Compact Installation
The smaller footprint makes it well suited to secondary lighting circuits where installation space is limited.
Clearly Labelled
Organised circuit connections help make installation, maintenance and future fault-finding more straightforward.
Practical Cable Entry
One incoming cable entry and two outgoing cable entries provide a clean way to distribute wiring to both sides of the trailer.
Product Details
- Circuits
- 2
- Dimensions
- 70 × 90 × 40 mm
- Enclosure material
- PETG
- Gasket
- TPU flexible gasket
- Cable entries
- 1 incoming / 2 outgoing
- Cable glands
- M16 nylon glands, IP68-rated components
- Cable diameter
- 4–8 mm
- Terminal conductor size
- 0.2–4.0 mm²
- Best suited for
- Marker and clearance lighting
$35 incl. GST
STANDARD TRAILER WIRING
5 Way Junction Box
Designed for the standard lighting circuits used on most New Zealand trailers, the Flex Systems 5 Way Junction Box provides a practical, organised solution that makes installation easier and future maintenance more straightforward.
Built for Standard Trailer Wiring
Designed around the five circuits commonly found on New Zealand trailers, making it suitable for most standard lighting installations.
Organised & Clearly Labelled
Each terminal is clearly identified, helping reduce wiring mistakes during installation and making future fault-finding quicker.
Designed for Easier Maintenance
Lever-style terminals allow wiring to be disconnected and reconnected without cutting or damaging conductors during servicing.
Product Details
- Circuits
- 5
- Dimensions
- 120 × 90 × 40 mm
- Enclosure material
- PETG
- Gasket
- TPU flexible gasket
- Cable entries
- 1 incoming / 2 outgoing
- Cable glands
- 3 × M16 nylon glands, IP68-rated components
- Cable diameter
- 4–8 mm
- Terminal conductor size
- 0.2–4.0 mm²
- Typical applications
- Standard New Zealand trailers
$65 incl. GST
ADDITIONAL TRAILER CIRCUITS
7 Way Junction Box
Designed for trailers requiring more than a standard lighting configuration, the Flex Systems 7 Way Junction Box provides additional circuits while maintaining the same organised layout and ease of installation found across the Flex Systems range.
Additional Wiring Capacity
Ideal for trailers requiring reverse lights, auxiliary power, electric braking systems or other additional trailer circuits.
Consistent Layout
Clearly labelled terminals and an organised internal layout help simplify installation and future maintenance.
Designed to Grow With Your Trailer
The additional circuits provide flexibility for more advanced trailer wiring without compromising accessibility or serviceability.
Product Details
- Circuits
- 7
- Dimensions
- 120 × 112 × 40 mm
- Enclosure material
- PETG
- Gasket
- TPU flexible gasket
- Cable entries
- 1 incoming / 2 outgoing
- Cable glands
- 3 × M16 nylon glands, IP68-rated components
- Cable diameter
- 4–8 mm
- Terminal conductor size
- 0.2–4.0 mm²
- Typical applications
- Trailers with reverse, auxiliary or electric brake circuits
$79 incl. GST