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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.

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    FuseBox

    FuseBox MT06B201 20A Single Pole 1 Module B Curve 6kA MCB

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    FuseBox 20A 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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    FuseBox

    FuseBox MT06C201 20A Single Pole 1 Module C Curve 6kA MCB

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    IN STOCK

    FuseBox 20A 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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    Click Elucian

    Click Elucian CU1MCB20B 1 Pole 6kA B Curve 20A MCB

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    Click Elucian CU1MCB20B 1 Pole 6kA B Curve 20A MCB This item is 1P 6kA B Curve 20A MCB Features 20A 6kA B Curve Single Pole Large Terminal Cap...

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    Wylex

    Wylex NHXLB20 20A Single Pole Type B Curve 6kA MCB

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    Wylex 20A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 20A B curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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    Schneider Electric

    Schneider Electric EZ9F16120 20A Single Pole B Curve 6kA MCB

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    Schneider Electric EZ9F16120 20A Single Pole B Curve 6kA MCB Product Description This Easy9 product is a low voltage miniature circuit breaker (M...

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  • BG CUMB20 20A Single Pole 1 Module 6kA B Curve MCB - westbasedirect.com
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    BG Electrical

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

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    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...

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    Hager

    Hager MTN120 20A Single Pole 1 Module B Curve 6KA MCB Device

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    Hager 20A 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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  • BG CUMC20 20A Single Pole 1 Module 6kA C Curve MCB - westbasedirect.com
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    BG Electrical

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

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    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...

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    £2.31 - £2.31
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    Wylex

    Wylex NHXB20 20A Single Pole Type B Curve 6kA MCB

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    Dispatch in 2-5 Days

    Wylex 20A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 20A B curve Energy limiting Class 3 Balcony terminal position Data Sheet:...

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    Sold out
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    Wylex

    Wylex B20 20A Single Pole Type B Curve 6kA Plug-in MCB, Standard

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    Wylex 20A Single Pole Type B Curve 6kA Plug-in MCB, Standard Features Spare plug in MCB, 20A Wylex Standard range Colour coded yellow Data Sh...

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    Sold out
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    Click Elucian

    Click Elucian CU1MCB20C 1 Pole 6kA C Curve 20A MCB

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    Dispatch in 1-2 Days

    Click Elucian CU1MCB20C 1 Pole 6kA C Curve 20A MCB This item is 1P 6kA C Curve 20A MCB Features 20A 6kA C Curve Single Pole Large Terminal Cap...

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    Wylex

    Wylex NHXLC20 20A Single Pole Type C Curve 6kA MCB

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    IN STOCK

    Wylex 20A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 20A C curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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    Wylex

    Wylex NHXC20 20A Single Pole Type C Curve 6kA MCB

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    IN STOCK

    Wylex 20A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 20A C curve Energy limiting Class 3 Balcony terminal position Data Sheet...

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    LIVE Electrical

    LIVE Electrical CA120B Single Pole 20A B Curve 6kA MCB

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    LIVE Electrical CA120B Single Pole 20A B Curve 6kA MCB Product Description Single Pole 6kA Miniature Circuit Breakers (MCB) Specification: Rated c...

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    Crabtree 61/B20 Starbreaker 20A Single Pole B Curve 6kA MCB

    Crabtree
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    Crabtree 61/B20 Starbreaker 20A Single Pole B Curve 6kA MCB Product Description 20A SP Type B 6kA MCB Features Single pole MCB, 20A B curve Energ...

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    Crabtree 61/C20 Starbreaker 16A Single Pole C Curve 6kA MCB

    Crabtree
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    Dispatch in 2-5 Days

    Crabtree 61/C20 Starbreaker 16A Single Pole C Curve 6kA MCB Product Description 16A SP Type C 6kA MCB Features Single pole MCB, 20A C curve Energ...

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    £4.20
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    LIVE Electrical

    LIVE Electrical CA120C Single Pole 20A C Curve 6kA MCB

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    Dispatch in 2-5 Days

    LIVE Electrical CA120C Single Pole 20A C Curve 6kA MCB Product Description Single Pole 6kA Miniature Circuit Breakers (MCB) Specification: Rated c...

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    LIVE Electrical

    LIVE Electrical CA220B Double Pole 20A B Curve 6kA MCB

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    LIVE Electrical CB220B Double Pole 20A B Curve 6kA MCB Product Description Double Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalo...

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    LIVE Electrical

    LIVE Electrical CA220C Double Pole 20A C Curve 6kA MCB

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    LIVE Electrical CB220C Double Pole 20A C Curve 6kA MCB Product Description Double Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalo...

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    LIVE Electrical

    LIVE Electrical CA320B Triple Pole 20A B Curve 6kA MCB

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    LIVE Electrical CA320B Triple Pole 20A B Curve 6kA MCB Product Description Triple Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalo...

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    LIVE Electrical

    LIVE Electrical CA320C Triple Pole 20A C Curve 6kA MCB

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    LIVE Electrical CA320C Triple Pole 20A C Curve 6kA MCB Product Description Triple Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalo...

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    LIVE Electrical

    LIVE Electrical CA420B 4 Pole 20A B Curve 6kA MCB

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    LIVE Electrical CA420B 4 Pole 20A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...

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    LIVE Electrical

    LIVE Electrical CA420C 4 Pole 20A C Curve 6kA MCB

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    Dispatch in 2-5 Days

    LIVE Electrical CA420C 4 Pole 20A C Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...

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    LIVE Electrical

    LIVE Electrical DCM220C Double Pole 20A C Curve 6kA DC MCB

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    LIVE Electrical DCM220C Double Pole 20A C Curve 6kA DC MCB Product Description Double Pole (2 Pole) 6kA DC Miniature Circuit Breakers LIVE Electri...

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