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...
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
£5.29
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Original price
£5.29
Original price
£4.41
Exc VAT
£5.29
Inc VAT
£5.29
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£5.29
Current price
£5.29
Inc VAT
£4.41
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£4.41
Exc VAT
Current price
£5.29
Exc VAT
LIVE Electrical CA340B Triple Pole 40A B Curve 6kA MCB
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Dispatch in 2-5 Days
LIVE Electrical CA340B Triple Pole 40A B Curve 6kA MCB Product Description Triple Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalo...
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Original price
£5.29
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Original price
£5.29
Original price
£4.41
Exc VAT
£5.29
Inc VAT
£5.29
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£5.29
Current price
£5.29
Inc VAT
£4.41
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£4.41
Exc VAT
Current price
£5.29
Exc VAT
Original price
£5.88
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Original price
£5.88
Original price
£4.90
Exc VAT
£5.88
Inc VAT
£5.88
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£5.88
Current price
£5.88
Inc VAT
£4.90
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£4.90
Exc VAT
Current price
£5.88
Exc VAT
LIVE Electrical CA350B Triple Pole 50A B Curve 6kA MCB
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Dispatch in 2-5 Days
LIVE Electrical CA350B Triple Pole 50A B Curve 6kA MCB Product Description Triple Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalo...
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Original price
£5.88
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Original price
£5.88
Original price
£4.90
Exc VAT
£5.88
Inc VAT
£5.88
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£5.88
Current price
£5.88
Inc VAT
£4.90
-
£4.90
Exc VAT
Current price
£5.88
Exc VAT
Original price
£5.88
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Original price
£5.88
Original price
£4.90
Exc VAT
£5.88
Inc VAT
£5.88
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£5.88
Current price
£5.88
Inc VAT
£4.90
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£4.90
Exc VAT
Current price
£5.88
Exc VAT
LIVE Electrical CA363B Triple Pole 63A B Curve 6kA MCB
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Dispatch in 2-5 Days
LIVE Electrical CA363B Triple Pole 63A B Curve 6kA MCB Product Description Triple Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalo...
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Original price
£5.88
-
Original price
£5.88
Original price
£4.90
Exc VAT
£5.88
Inc VAT
£5.88
-
£5.88
Current price
£5.88
Inc VAT
£4.90
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£4.90
Exc VAT
Current price
£5.88
Exc VAT
Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
LIVE Electrical CA406B 4 Pole 6A B Curve 6kA MCB
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LIVE Electrical CA406B 4 Pole 6A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click ...
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Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
LIVE Electrical CA410B 4 Pole 10A B Curve 6kA MCB
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LIVE Electrical CA410B 4 Pole 10A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...
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Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
LIVE Electrical CA416B 4 Pole 16A B Curve 6kA MCB
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Dispatch in 2-5 Days
LIVE Electrical CA416B 4 Pole 16A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...
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Original price
£7.24
-
Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
LIVE Electrical CA420B 4 Pole 20A B Curve 6kA MCB
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Dispatch in 2-5 Days
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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Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
LIVE Electrical CA432B 4 Pole 32A B Curve 6kA MCB
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LIVE Electrical CA432B 4 Pole 32A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...
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Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
-
£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
Original price
£7.24
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Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
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£7.24
Current price
£7.24
Inc VAT
£6.03
-
£6.03
Exc VAT
Current price
£7.24
Exc VAT
LIVE Electrical CA440B 4 Pole 40A B Curve 6kA MCB
Availability:
Dispatch in 2-5 Days
LIVE Electrical CA440B 4 Pole 40A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...
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Original price
£7.24
-
Original price
£7.24
Original price
£6.03
Exc VAT
£7.24
Inc VAT
£7.24
-
£7.24
Current price
£7.24
Inc VAT
£6.03
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£6.03
Exc VAT
Current price
£7.24
Exc VAT
Original price
£8.04
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Original price
£8.04
Original price
£6.70
Exc VAT
£8.04
Inc VAT
£8.04
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£8.04
Current price
£8.04
Inc VAT
£6.70
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£6.70
Exc VAT
Current price
£8.04
Exc VAT
LIVE Electrical CA450B 4 Pole 50A B Curve 6kA MCB
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Dispatch in 2-5 Days
LIVE Electrical CA450B 4 Pole 50A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...
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Original price
£8.04
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Original price
£8.04
Original price
£6.70
Exc VAT
£8.04
Inc VAT
£8.04
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£8.04
Current price
£8.04
Inc VAT
£6.70
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£6.70
Exc VAT
Current price
£8.04
Exc VAT
Original price
£8.04
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Original price
£8.04
Original price
£6.70
Exc VAT
£8.04
Inc VAT
£8.04
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£8.04
Current price
£8.04
Inc VAT
£6.70
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£6.70
Exc VAT
Current price
£8.04
Exc VAT
LIVE Electrical CA463B 4 Pole 63A B Curve 6kA MCB
Availability:
Dispatch in 2-5 Days
LIVE Electrical CA463B 4 Pole 63A B Curve 6kA MCB Product Description 4 Pole Miniature Circuit Breakers (MCB) 6kA LIVE Electrical Catalogue: Click...
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Original price
£8.04
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Original price
£8.04
Original price
£6.70
Exc VAT
£8.04
Inc VAT
£8.04
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£8.04
Current price
£8.04
Inc VAT
£6.70
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£6.70
Exc VAT
Current price
£8.04
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Original price
£2.22
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Original price
£2.22
Original price
£1.85
Exc VAT
£2.22
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£2.22
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£2.22
Current price
£2.22
Inc VAT
£1.85
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£1.85
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Current price
£2.22
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FuseBox MT06B021 2A Single Pole 1 Module B Curve 6kA MCB
Availability:
Dispatch in 2-3 Days
FuseBox MT06B021 2A Single Pole 1 Module B Curve 6kA MCB Circuit Protection – MCBs Devices A range of thermo-magnetic, current limiting MCBs avai...
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Original price
£2.22
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Original price
£2.22
Original price
£1.85
Exc VAT
£2.22
Inc VAT
£2.22
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£2.22
Current price
£2.22
Inc VAT
£1.85
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£1.85
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Current price
£2.22
Exc VAT
Original price
£2.22
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Original price
£2.22
Original price
£1.85
Exc VAT
£2.22
Inc VAT
£2.22
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£2.22
Current price
£2.22
Inc VAT
£1.85
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£1.85
Exc VAT
Current price
£2.22
Exc VAT
FuseBox MT06B041 4A Single Pole 1 Module B Curve 6kA MCB
Availability:
Dispatch in 2-3 Days
FuseBox MT06B041 4A Single Pole 1 Module B Curve 6kA MCB Circuit Protection – MCBs Devices A range of thermo-magnetic, current limiting MCBs avai...
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Original price
£2.22
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Original price
£2.22
Original price
£1.85
Exc VAT
£2.22
Inc VAT
£2.22
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£2.22
Current price
£2.22
Inc VAT
£1.85
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£1.85
Exc VAT
Current price
£2.22
Exc VAT