5 Way 100A Terminal Block – Black
18th Ed. Compliant
2-Year Warranty
UK Stock
Free Delivery £30+
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The WTB5-BK is a 5 way 100A terminal block in black, commonly used as an additional phase identifier or for site-specific wiring schemes. It provides a robust and tamper-resistant solution for splitting meter tails, feeding consumer units, or distributing multiple outgoing circuits in residential, commercial, and small industrial installs. Like...
The WTB5-BK is a 5 way 100A terminal block in black, commonly used as an additional phase identifier or for site-specific wiring schemes. It provides a robust and tamper-resistant solution for splitting meter tails, feeding consumer units, or distributing multiple outgoing circuits in residential, commercial, and small industrial installs.
Like all models in the WTB5 range, it accepts conductors from 2.5 mm² to 35 mm², and comes with a lockable, sealable lid plus blanking inserts for unused terminals. The hexagon screw clamp design ensures secure, vibration-resistant connections even under heavy loads.
Installer Tip: Use the black variant for additional phase identification in multi-phase systems, or where a separate visual identifier is required by the site wiring scheme. Always torque to 3 Nm for a secure connection.
Key Features
- 100A rated – suitable for heavy-duty tails and circuits
- 5-way configuration – simplifies splitting and distribution
- Cable capacity: 2.5 mm² – 35 mm²
- Black colour coding – used for alternate phase or special identification
- Lockable, sealable lid for tamper resistance
- Blanking inserts supplied for unused ways
- Hexagon screw clamps – strong and vibration-proof
- 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 | Green | Earth / bonding |
| WTB5-PK | Pink | Additional identifier |
| WTB5-BK (This Product) | Black | Alternate phase / site-specific ID |
What is the black terminal block used for?
It’s typically used as an alternate phase identifier or for site-specific identification schemes.
Does this include blanking inserts?
Yes – blanking pieces are supplied to safely cover unused terminals.
Is it suitable for meter tails?
Yes – rated at 100A and supports conductors from 2.5 mm² to 35 mm², it’s ideal for splitting meter tails.
Is the lid lockable?
Yes – the lid is lockable and sealable for tamper resistance and DNO compliance.
- Model: WTB5-BK
- 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: Black (alternate phase / special ID)
Mount inside a distribution board or junction enclosure. Must be installed by a qualified electrician. The black variant should only be used where wiring schemes allow.
- Tighten all screws to 3 Nm
- Seal lid with lock where DNO or site requires tamper protection
- Fit blanking inserts in unused ways
- Use black for additional phase or site-specific identification
