5 Way 100A Terminal Block – Blue
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
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The WTB5-BL is a 5 way 100A terminal block in blue, designed for neutral connections in single-phase and three-phase systems. Rated at 100A and suitable for conductors from 2.5 mm² to 35 mm², it provides a safe and tamper-resistant solution for splitting meter tails, feeding consumer units, or distributing multiple...
The WTB5-BL is a 5 way 100A terminal block in blue, designed for neutral connections in single-phase and three-phase systems. Rated at 100A and suitable for conductors from 2.5 mm² to 35 mm², it provides a safe and tamper-resistant solution for splitting meter tails, feeding consumer units, or distributing multiple circuits in residential and commercial installations.
The block features a lockable, sealable lid to prevent tampering and includes blanking inserts for unused ways. Its hexagon screw clamp design delivers high clamping force and vibration resistance, keeping connections secure under heavy load. The blue casing ensures clear identification of neutral conductors in compliance with wiring standards.
Installer Tip: Select the blue variant for all neutral terminations to maintain consistent identification across circuits. Always torque to 3 Nm and seal the lid where required.
Key Features
- 100A rated – suitable for heavy-duty meter tails and distribution
- 5-way design – simplifies splitting and managing multiple circuits
- Cable capacity: 2.5 mm² – 35 mm²
- Blue colour coding – dedicated to neutral connections
- Lockable, sealable lid for tamper resistance
- Blanking inserts included for unused terminals
- Hexagon screw clamps – reliable, vibration-resistant connections
- 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 (This Product) | Blue | Neutral |
| WTB5-GN | Green | Earth / bonding |
| WTB5-PK | Pink | Additional identifier |
Is the blue version only for neutral connections?
Yes – blue is the standard colour for neutral conductors under UK wiring regs.
Can this block be used for splitting meter tails?
Yes – it’s suitable for splitting 100A meter tails to feed multiple consumer units.
Does it come with tamper-proofing options?
Yes – the lid is lockable and sealable for compliance with DNO requirements.
What cable sizes are supported?
It accommodates conductors from 2.5 mm² up to 35 mm².
- Model: WTB5-BL
- 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: Blue (neutral)
Install inside consumer units or enclosures where neutral identification is required. Must be fitted by a qualified electrician.
- Torque all screws to 3 Nm
- Seal lid if DNO/site regulations require
- Use blanking inserts for unused terminals
- Use blue exclusively for neutral conductors
