5 Way 100A Terminal Block – Green
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
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  The WTB5-GN is a 5 way 100A terminal block in green, designed for earth and bonding connections in residential, commercial, and small industrial installations. With a rating of 100A and capacity for 2.5 mm² to 35 mm² conductors, it provides a safe, tamper-resistant way to terminate and split bonding cables,...
The WTB5-GN is a 5 way 100A terminal block in green, designed for earth and bonding connections in residential, commercial, and small industrial installations. With a rating of 100A and capacity for 2.5 mm² to 35 mm² conductors, it provides a safe, tamper-resistant way to terminate and split bonding cables, earth tails, and protective conductors.
Like all WTB5 variants, it features a lockable, sealable lid with blanking inserts for unused ways. The hexagon screw clamp design ensures strong, vibration-resistant connections. The green housing provides clear visual identification for earth bonding points, aiding compliance with UK wiring regulations.
Installer Tip: Use the green variant exclusively for earthing and bonding conductors. Always torque to 3 Nm and apply a DNO seal where bonding security is required.
Key Features
- 100A rated – safe for heavy-duty earthing and bonding applications
 - 5-way configuration – simplifies earth and bonding splits
 - Cable capacity: 2.5 mm² – 35 mm²
 - Green colour coding – reserved for earth/bonding
 - Lockable, sealable lid for tamper resistance
 - Blanking inserts supplied for unused ways
 - Hexagon screw clamps – high strength, vibration resistant
 - Recommended torque: 3 Nm
 
Compare WTB5 Terminal Block Variants
| Model | Colour | Typical Use | 
|---|---|---|
| WTB5-BR | Brown | Live connection | 
| WTB5-GY | Grey | Alternate phase | 
| WTB5-BL | Blue | Neutral | 
| WTB5-GN (This Product) | Green | Earth / bonding | 
| WTB5-PK | Pink | Additional identifier | 
Is the green terminal block only for earth?
Yes – under UK wiring regs, green is reserved for earthing and bonding conductors.
Can this block handle bonding conductors?
Yes – it supports 2.5 mm² to 35 mm² bonding cables with a maximum load of 100A.
Does it come with tamper-proof features?
Yes – the lid is lockable and sealable to comply with DNO or site bonding requirements.
What’s included with the product?
The block includes blanking inserts for unused ways and a sealable lid for security.
- Model: WTB5-GN
 - Rated Current: 100A
 - Connection Points: 5-way
 - Suitable Cable Sizes: 2.5 mm² – 35 mm²
 - Screw Type: Hexagon screw clamp
 - Lid: Lockable & sealable
 - Torque Setting: 3 Nm
 - Colour: Green (earth / bonding)
 
Mount securely inside distribution boards or junction enclosures. Installation must be carried out by a qualified electrician. Ensure use is restricted to earth and bonding conductors.
- Torque connections to 3 Nm
 - Seal lid where bonding tamper protection is required
 - Apply blanking inserts to unused terminals
 - Use exclusively for earth/bonding conductors