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High-Performance MCB Devices

Our extensive collection of MCB devices are a vital part of any electrical system. These Miniature Circuit Breakers automatically interrupt the power supply when an overcurrent or short circuit is detected in a circuit, preventing damage to wiring and connected appliances. Unlike traditional fuses, an MCB can be easily reset after a trip, which makes them an essential component for modern consumer units.

We offer MCBs in various ampere ratings and with different tripping characteristics to suit diverse applications. For example, "B curve" MCBs are ideal for residential use, protecting against moderate overloads, while "C curve" MCBs are more tolerant to higher inrush currents, making them suitable for commercial and industrial settings with appliances like motors or fluorescent lighting. All our MCBs are designed to comply with the latest safety standards and feature easy DIN rail mounting. Whether you need them for a new installation, to replace an old fuse box, or to add to an existing panel, selecting the correct MCB ensures your electrical system continues to run smoothly and safely.

  • BG CUMB45 45A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.30 - £2.30
    £2.30 Inc VAT
    £1.92 Exc VAT
    £2.30 - £2.30
    £1.92 Inc VAT
    £1.92 - £1.92 Exc VAT
    £1.92 Exc VAT
    BG Electrical

    BG CUMB45 45A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 45A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.30 - £2.30
    £2.30 Inc VAT
    £1.92 Exc VAT
    £2.30 - £2.30
    £1.92 Inc VAT
    £1.92 - £1.92 Exc VAT
    £1.92 Exc VAT
  • BG CUMB16 16A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB16 16A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 16A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
  • BG CUMB6 6A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB6 6A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 6A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knock...

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    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
  • BG CUMB55 55A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com Sold out
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB55 55A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    SOLD OUT

    BG 55A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

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    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    Sold out
  • BG CUMB20 20A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB20 20A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 20A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
  • BG CUMC20 20A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
    BG Electrical

    BG CUMC20 20A Single Pole 1 Module 6kA C Curve MCB

    Availability:
    IN STOCK

    BG 20A Single Pole 1 Module 6kA C Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
  • BG CUMB32 32A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB32 32A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 32A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
  • BG CUMC40 40A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
    BG Electrical

    BG CUMC40 40A Single Pole 1 Module 6kA C Curve MCB

    Availability:
    IN STOCK

    BG 40A Single Pole 1 Module 6kA C Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
  • BG CUMC50 50A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
    BG Electrical

    BG CUMC50 50A Single Pole 1 Module 6kA C Curve MCB

    Availability:
    IN STOCK

    BG 50A Single Pole 1 Module 6kA C Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
  • BG CUMC32 32A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
    BG Electrical

    BG CUMC32 32A Single Pole 1 Module 6kA C Curve MCB

    Availability:
    IN STOCK

    BG 32A Single Pole 1 Module 6kA C Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
  • BG CUMC16 16A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
    BG Electrical

    BG CUMC16 16A Single Pole 1 Module 6kA C Curve MCB

    Availability:
    IN STOCK

    BG 16A Single Pole 1 Module 6kA C Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
  • BG CUMC10 10A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
    BG Electrical

    BG CUMC10 10A Single Pole 1 Module 6kA C Curve MCB

    Availability:
    IN STOCK

    BG 10A Single Pole 1 Module 6kA C Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
  • BG CUMB50 50A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB50 50A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 50A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
  • BG CUMB40 40A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB40 40A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 40A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
  • BG CUMB10 10A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
    BG Electrical

    BG CUMB10 10A Single Pole 1 Module 6kA B Curve MCB

    Availability:
    IN STOCK

    BG 10A Single Pole 1 Module 6kA B Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knoc...

    View full details
    £2.24 - £2.24
    £2.24 Inc VAT
    £1.87 Exc VAT
    £2.24 - £2.24
    £1.87 Inc VAT
    £1.87 - £1.87 Exc VAT
    £1.87 Exc VAT
  • BG CUMC6 6A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT
    BG Electrical

    BG CUMC6 6A Single Pole 1 Module 6kA C Curve MCB

    Availability:
    IN STOCK

    BG 6A Single Pole 1 Module 6kA C Curve MCB Features of the Consumer Units range Lockable cover option available Easy access of cables via knock...

    View full details
    £2.31 - £2.31
    £2.31 Inc VAT
    £1.93 Exc VAT
    £2.31 - £2.31
    £1.93 Inc VAT
    £1.93 - £1.93 Exc VAT
    £1.93 Exc VAT

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