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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.

  • Original price £2.55 - Original price £2.55
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    £2.55 Inc VAT
    £2.13 Exc VAT
    £2.55 - £2.55
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    £2.13 - £2.13 Exc VAT
    Current price £2.13 Exc VAT
    Hager

    Hager MTN125 25A Single Pole 1 Module B Curve 6KA MCB Device

    Availability:
    IN STOCK

    Hager 25A Single Pole 1 Module B Curve 6KA MCB Device Features of MCB Devices Type B tripping characteristics complies with BS EN 60898 Calibrat...

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    Original price £2.55 - Original price £2.55
    Original price
    £2.55 Inc VAT
    £2.13 Exc VAT
    £2.55 - £2.55
    Current price £2.13 Inc VAT
    £2.13 - £2.13 Exc VAT
    Current price £2.13 Exc VAT
  • Original price £4.30 - Original price £4.30
    Original price
    £4.30 Inc VAT
    £3.58 Exc VAT
    £4.30 - £4.30
    Current price £3.58 Inc VAT
    £3.58 - £3.58 Exc VAT
    Current price £3.58 Exc VAT
    Wylex

    Wylex NHXB25 25A Single Pole Type B Curve 6kA MCB

    Availability:
    IN STOCK

    Wylex 25A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 25A B curve Energy limiting Class 3 Balcony terminal position Data Sheet:...

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    Original price £4.30 - Original price £4.30
    Original price
    £4.30 Inc VAT
    £3.58 Exc VAT
    £4.30 - £4.30
    Current price £3.58 Inc VAT
    £3.58 - £3.58 Exc VAT
    Current price £3.58 Exc VAT
  • Original price £2.09 - Original price £2.09
    Original price
    £2.09 Inc VAT
    £1.74 Exc VAT
    £2.09 - £2.09
    Current price £1.74 Inc VAT
    £1.74 - £1.74 Exc VAT
    Current price £1.74 Exc VAT
    FuseBox

    FuseBox MT06C251 25A Single Pole 1 Module C Curve 6kA MCB

    Availability:
    IN STOCK

    FuseBox 25A Single Pole 1 Module C Curve 6kA MCB Circuit Protection – MCBs Devices A range of thermo-magnetic, current limiting MCBs available w...

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    Original price £2.09 - Original price £2.09
    Original price
    £2.09 Inc VAT
    £1.74 Exc VAT
    £2.09 - £2.09
    Current price £1.74 Inc VAT
    £1.74 - £1.74 Exc VAT
    Current price £1.74 Exc VAT
  • Original price £2.75
    Original price £2.75 - Original price £2.75
    Original price £2.75
    Current price £2.51 Inc VAT
    Current price £2.09 Exc VAT
    £2.51 - £2.51
    Current price £2.09 Inc VAT
    £2.09 - £2.09 Exc VAT
    Current price £2.09 Exc VAT
    Wylex

    Wylex NHXLC25 25A Single Pole Type C Curve 6kA MCB

    Availability:
    IN STOCK

    Wylex 25A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 25A C curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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    Original price £2.75
    Original price £2.75 - Original price £2.75
    Original price £2.75
    Current price £2.51 Inc VAT
    Current price £2.09 Exc VAT
    £2.51 - £2.51
    Current price £2.09 Inc VAT
    £2.09 - £2.09 Exc VAT
    Current price £2.09 Exc VAT
  • Original price £2.75
    Original price £2.75 - Original price £2.75
    Original price £2.75
    Current price £2.51 Inc VAT
    Current price £2.09 Exc VAT
    £2.51 - £2.51
    Current price £2.09 Inc VAT
    £2.09 - £2.09 Exc VAT
    Current price £2.09 Exc VAT
    Wylex

    Wylex NHXLB25 25A Single Pole Type B Curve 6kA MCB

    Availability:
    IN STOCK

    Wylex 25A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 25A B curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

    View full details
    Original price £2.75
    Original price £2.75 - Original price £2.75
    Original price £2.75
    Current price £2.51 Inc VAT
    Current price £2.09 Exc VAT
    £2.51 - £2.51
    Current price £2.09 Inc VAT
    £2.09 - £2.09 Exc VAT
    Current price £2.09 Exc VAT
  • Original price £1.99 - Original price £1.99
    Original price
    £1.99 Inc VAT
    £1.66 Exc VAT
    £1.99 - £1.99
    Current price £1.66 Inc VAT
    £1.66 - £1.66 Exc VAT
    Current price £1.66 Exc VAT
    FuseBox

    FuseBox MT06B251 25A Single Pole 1 Module B Curve 6kA MCB

    Availability:
    IN STOCK

    FuseBox 25A Single Pole 1 Module B Curve 6kA MCB Circuit Protection – MCBs Devices A range of thermo-magnetic, current limiting MCBs available w...

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    Original price £1.99 - Original price £1.99
    Original price
    £1.99 Inc VAT
    £1.66 Exc VAT
    £1.99 - £1.99
    Current price £1.66 Inc VAT
    £1.66 - £1.66 Exc VAT
    Current price £1.66 Exc VAT
  • Original price £2.65 - Original price £2.65
    Original price
    £2.65 Inc VAT
    £2.21 Exc VAT
    £2.65 - £2.65
    Current price £2.21 Inc VAT
    £2.21 - £2.21 Exc VAT
    Current price £2.21 Exc VAT
    Schneider Electric

    Schneider Electric EZ9F16125 25A Single Pole B Curve 6kA MCB

    Availability:
    SOLD OUT

    Schneider Electric EZ9F16125 25A Single Pole B Curve 6kA MCB Product Description This Easy9 product is a low voltage miniature circuit breaker (M...

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    Original price £2.65 - Original price £2.65
    Original price
    £2.65 Inc VAT
    £2.21 Exc VAT
    £2.65 - £2.65
    Current price £2.21 Inc VAT
    £2.21 - £2.21 Exc VAT
    Current price £2.21 Exc VAT
    Sold out
  • Original price £2.16 - Original price £2.16
    Original price
    £2.16 Inc VAT
    £1.80 Exc VAT
    £2.16 - £2.16
    Current price £1.80 Inc VAT
    £1.80 - £1.80 Exc VAT
    Current price £1.80 Exc VAT
    Click Elucian

    Click Elucian CU1MCB25C 1 Pole 6kA C Curve 25A MCB

    Availability:
    IN STOCK

    Click Elucian CU1MCB25C 1 Pole 6kA C Curve 25A MCB This item is 1P 6kA C Curve 25A MCB Features 25A 6kA C Curve Single Pole Large Terminal Cap...

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    Original price £2.16 - Original price £2.16
    Original price
    £2.16 Inc VAT
    £1.80 Exc VAT
    £2.16 - £2.16
    Current price £1.80 Inc VAT
    £1.80 - £1.80 Exc VAT
    Current price £1.80 Exc VAT
  • Original price £2.16 - Original price £2.16
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    £2.16 Inc VAT
    £1.80 Exc VAT
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    Current price £1.80 Inc VAT
    £1.80 - £1.80 Exc VAT
    Current price £1.80 Exc VAT
    Click Elucian

    Click Elucian CU1MCB25B 1 Pole 6kA B Curve 25A MCB

    Availability:
    Dispatch in 1-2 Days

    Click Elucian CU1MCB25B 1 Pole 6kA B Curve 25A MCB This item is 1P 6kA B Curve 25A MCB Features 25A 6kA B Curve Single Pole Large Terminal Cap...

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    Original price £2.16 - Original price £2.16
    Original price
    £2.16 Inc VAT
    £1.80 Exc VAT
    £2.16 - £2.16
    Current price £1.80 Inc VAT
    £1.80 - £1.80 Exc VAT
    Current price £1.80 Exc VAT
  • Original price £2.11
    Original price £2.11 - Original price £2.11
    Original price £2.11
    Current price £1.65 Inc VAT
    Current price £1.38 Exc VAT
    £1.65 - £1.65
    Current price £1.38 Inc VAT
    £1.38 - £1.38 Exc VAT
    Current price £1.38 Exc VAT
    LIVE Electrical

    LIVE Electrical CA125B Single Pole 25A B Curve 6kA MCB

    Availability:
    IN STOCK

    LIVE Electrical CA125B Single Pole 25A B Curve 6kA MCB Product Description Single Pole 6kA Miniature Circuit Breakers (MCB) Specification: Rated c...

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    Original price £2.11
    Original price £2.11 - Original price £2.11
    Original price £2.11
    Current price £1.65 Inc VAT
    Current price £1.38 Exc VAT
    £1.65 - £1.65
    Current price £1.38 Inc VAT
    £1.38 - £1.38 Exc VAT
    Current price £1.38 Exc VAT
  • Original price £2.11
    Original price £2.11 - Original price £2.11
    Original price £2.11
    Current price £1.65 Inc VAT
    Current price £1.38 Exc VAT
    £1.65 - £1.65
    Current price £1.38 Inc VAT
    £1.38 - £1.38 Exc VAT
    Current price £1.38 Exc VAT
    LIVE Electrical

    LIVE Electrical CA125C Single Pole 25A C Curve 6kA MCB

    Availability:
    Dispatch in 2-5 Days

    LIVE Electrical CA125C Single Pole 25A C Curve 6kA MCB Product Description Single Pole 6kA Miniature Circuit Breakers (MCB) Specification: Rated c...

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    Original price £2.11
    Original price £2.11 - Original price £2.11
    Original price £2.11
    Current price £1.65 Inc VAT
    Current price £1.38 Exc VAT
    £1.65 - £1.65
    Current price £1.38 Inc VAT
    £1.38 - £1.38 Exc VAT
    Current price £1.38 Exc VAT
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