- TEE-OFF BOXES
Safe String Distribution for Solar Arrays
Compact, robust tee-off distribution solutions for multi-string solar array configurations — tested and certified for Australian conditions.
PRODUCT OVERVIEW
String Protection Engineered for Australia
GreenBox Tee-Off Boxes provide safe, compliant string distribution for solar arrays of every scale. Designed for multiple string configurations, they include surge protection, string fusing, and monitoring capability as standard.
Built to withstand Australian UV radiation and temperature extremes with IP65-rated, UV-stabilised polycarbonate enclosures. Configured to your array design before dispatch to minimise on-site work.
STRINGS MAX
0
DC RATING
0
V
PROTECTION
IP
0
Technical Specifications
Input Strings
2–12 (configurable)
Max Input Voltage
1000V DC
Max String Current
12A per string
Fusing
15A string fuses (replaceable)
Surge Protection
Type II included
Enclosure
IP65 UV-stabilised
Operating Temp
-25°C to +70°C
Warranty
2 Years
All GreenBox Tee-Off Boxes are configured to your array specification before dispatch — string count, cable entry orientation and monitoring provisions set at the factory.
KEY FEATURES
Protection and Flexibility in One Unit
Multi-String Configurations
Available from 2 to 12 strings in a single enclosure — configured to your array layout before dispatch.
Type II Surge Protection
Class II SPD included as standard on all units — protecting your strings and inverter from lightning-induced transients.
String Monitoring Ready
Pre-wired monitoring ports allow string-level current monitoring integration without additional enclosure modification.
UV-Stabilised Enclosure
Polycarbonate enclosures with UV stabilisation resist Australian UV radiation and prevent embrittlement over time.
Replaceable Fuses
Industry-standard 15A 1000V DC string fuses are field-replaceable without specialist tools or equipment.
Quick-Connect Terminals
MC4-compatible input connectors and labelled DC output terminals for rapid, error-free on-site wiring.
APPLICATIONS
Deployed Across Every Array Type
Grid Applications
We prepare and manage grid connection applications with your DNSP — handling the technical documentation, protection settings, and correspondence on your behalf.
Commercial Multi-String Arrays
6–12 string configurations handle large commercial array sections, centralising protection and fusing at each sub-array.
Carport Solar Structures
IP65 rated and UV stable — ideal for carport canopy installations exposed to direct sunlight and weather.
Ground-Mount Systems
Deployed at string combiner level in ground-mount and agrivoltaic projects to aggregate multiple strings before the DC cable run.
BENEFITS
Why Specify GreenBox Tee-Off Boxes
01
Compliant by Design
Type II SPD and individual string fusing satisfy AS/NZS 5033 requirements for solar array DC wiring protection.
- AS/NZS 5033
02
Flexible Configuration
2 to 12 string options mean a single product family covers every project size — simplifying procurement and spares.
- 2–12 Strings
03
Built for Australian Conditions
IP65 UV-stabilised enclosures and -25°C to +70°C operating range tested to withstand Australian temperature extremes and UV exposure.
- IP65 Rated
FAQ
Questions & Answers
Our technical team can assist with array design integration questions and custom configuration requirements.
What string count configurations are available off the shelf?
Standard configurations are stocked in 2, 4, 6, 8, and 12-string variants. Non-standard string counts within the 2–12 range can be configured to order. Contact us with your array design for a recommendation.
Are the string fuses field-replaceable?
Yes. All GreenBox Tee-Off Boxes use industry-standard 10×85mm 15A 1000V DC cylindrical fuses that are available from major electrical wholesalers Australia-wide and can be replaced with basic tools.
Is the Type II SPD replaceable after a surge event?
Yes. The Type II SPD modules are plug-in replaceable with a visual fault indicator that signals when replacement is required. Replacement modules are available directly from GreenBox.
Can the enclosures be pole-mounted or rail-mounted?
Both mounting options are supported. Standard units include a rear mounting flange for direct surface or pole mounting. DIN rail mounting kits are available as an accessory for enclosure or plant room installation.
Do the tee-off boxes comply with AS/NZS 5033?
Yes. GreenBox Tee-Off Boxes are designed to meet the requirements of AS/NZS 5033 Installation and Safety Requirements for Photovoltaic (PV) Arrays, including individual string over-current protection and surge protection requirements.