Terminal Blocks & Electrical Connector Blocks
Terminal blocks and electrical connector blocks provide secure wiring terminations for consumer units, distribution boards, meter cabinets and panel builds. Browse 100A terminal blocks, single pole connector blocks and colour-coded termination blocks for live, neutral, earth and phase identification.
This range is suited to electricians working on mains terminations, meter tail splits, consumer unit upgrades, sub-distribution and general electrical wiring where a safe, clearly rated connection point is required.
Quick overview: Electrical terminal blocks are used to join, split or terminate conductors safely inside an enclosure, board or meter area. Always match the block rating, cable size and enclosure to the installation.
Read more about terminal blocks
Common options include:
- 100A terminal blocks: for higher-current terminations and meter tail arrangements
- Single pole connector blocks: for live, neutral, earth or phase connections
- Colour-coded terminal blocks: useful for clear circuit identification
- Electrical connector blocks: for secure joins inside suitable enclosures
- Distribution and termination blocks: for consumer units, boards and panel wiring
Choose the correct current rating, conductor capacity and enclosure type for the circuit being installed.
5 Way 100A Terminal Block – Grey
£5.20
The WTB5-GY is a 5 way 100A terminal block in grey, typically used for alternate phase identification in single-phase or three-phase systems. It provides a secure, tamper-resistant solution for splitting meter tails, connecting consumer units, or managing multiple outgoing circuits in residential and commercial installs....
Electrical Terminal Blocks & Connector Blocks
Electrical terminal blocks provide a secure connection point for joining, splitting or terminating conductors inside consumer units, meter enclosures, distribution boards and control panels. They are commonly used where installers need a neat, accessible and clearly rated wiring connection.
Types of Terminal Blocks Available
- Screw terminal blocks – simple and reliable for lighting circuits and general wiring
- DIN rail terminal blocks – modular solutions for panel builds
- High-current and 100A blocks – designed for mains and submain connections. Popular option: 5-Way 100A Terminal Block
- Three-phase terminal blocks – distribute load across phases in commercial installs
- Plastic and insulated connector strips – compliant and clearly rated for safe terminations
Applications
- Consumer unit upgrades and rewires
- Commercial distribution boards
- Industrial control panels
- Sub-distribution and high-load terminations
Specification Considerations
- Current rating – match to supply and cable size
- Number of ways – choose based on circuit layout
- Mounting type – screw-fixed or DIN rail
- Single-phase vs three-phase – ensure compatibility with system design
Common Terminal Block Questions
What is an electrical terminal block used for?
A terminal block is used to safely connect or terminate electrical conductors inside a suitable enclosure, board or panel.
What is a 100A terminal block used for?
A 100A terminal block is typically used for higher-current terminations, meter tail arrangements, sub-distribution and board wiring where the cable size and circuit rating are suitable.
Are connector blocks and terminal blocks the same?
The terms are often used interchangeably. Both describe a connection block used to join or terminate electrical wiring, though exact design and rating will vary by product.
Why Buy From Power & Data UK?
We supply BS EN compliant electrical terminal blocks with fast UK delivery and clear technical specifications. All items are trade-ready and backed by manufacturer warranties. See our delivery information and returns policy for full details.