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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£24.16 - £24.16

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Wylex B32 32A Single Pole Type B Curve 6kA Plug-in MCB, Standard

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Wylex 32A Single Pole Type B Curve 6kA Plug-in MCB, Standard Features Spare plug in MCB, 32A Wylex Standard range Colour coded red Data Sheet...

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£20.13 Exc VAT

£24.16 - £24.16

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£20.13 Exc VAT

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£2.75

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£2.09 Exc VAT

Wylex NHXLB16 16A Single Pole Type B Curve 6kA MCB

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Wylex 16A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 16A B curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLB32 32A Single Pole Type B Curve 6kA MCB

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Wylex 32A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 32A B curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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£2.75

£2.75 - £2.75

£2.75

£2.51 Inc VAT

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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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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLB10 10A Single Pole Type B Curve 6kA MCB

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Wylex 10A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 10A B curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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£2.75 - £2.75

£2.75

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£4.30 - £4.30

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£3.58 Exc VAT

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

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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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Wylex B6 6A Single Pole Type B Curve 6kA Plug-in MCB, Standard

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

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Wylex NHXB32 32A Single Pole Type B Curve 6kA MCB

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Wylex 32A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 32A B curve Energy limiting Class 3 Balcony terminal position Data Sheet:...

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£4.30 - £4.30

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£3.58 Exc VAT

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

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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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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXB20 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 Balcony terminal position Data Sheet:...

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£4.30 - £4.30

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Wylex NHXB06 6A Single Pole Type B Curve 6kA MCB

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

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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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£21.01 - £21.01

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£17.51 Exc VAT

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Wylex B16 16A Single Pole Type B Curve 6kA Plug-in MCB, Standard

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Wylex 16A Single Pole Type B Curve 6kA Plug-in MCB, Standard Features Spare plug in MCB, 16A Wylex Standard range Colour coded blue Data Shee...

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£21.01 - £21.01

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£17.51 Exc VAT

£21.01 - £21.01

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Wylex B10 10A Single Pole Type B Curve 6kA Plug-in MCB, Standard

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Wylex 10A Single Pole Type B Curve 6kA Plug-in MCB, Standard Features Spare plug in MCB, 10A Wylex Standard range Colour coded grey Data Shee...

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£21.01 - £21.01

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£17.51 Exc VAT

£21.01 - £21.01

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Wylex NHXLB50 50A Single Pole Type B Curve 6kA MCB

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Wylex 50A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 50A B curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

View full details

£2.75

£2.75 - £2.75

£2.75

£2.51 Inc VAT

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£2.09 Exc VAT

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

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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

£2.75

£2.75 - £2.75

£2.75

£2.51 Inc VAT

£2.09 Exc VAT

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Wylex NHXLB06 6A Single Pole Type B Curve 6kA MCB

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

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£2.75

£2.75 - £2.75

£2.75

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£4.30 - £4.30

£4.30 Inc VAT

£3.58 Exc VAT

£4.30 - £4.30

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£3.58 - £3.58 Exc VAT

£3.58 Exc VAT

Wylex NHXC16 16A Single Pole Type C Curve 6kA MCB

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Wylex 16A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 16A C curve Energy limiting Class 3 Balcony terminal position Data Sheet...

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£4.30 - £4.30

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£3.58 Exc VAT

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Wylex NHXC10 10A Single Pole Type C Curve 6kA MCB

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Wylex 10A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 10A C curve Energy limiting Class 3 Balcony terminal position Data Shee...

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£4.30 - £4.30

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£3.58 Exc VAT

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Wylex NHXB40 40A Single Pole Type B Curve 6kA MCB

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Wylex 40A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 40A B curve Energy limiting Class 3 Balcony terminal position Data Sheet:...

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Wylex NHXB16 16A Single Pole Type B Curve 6kA MCB

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Wylex 16A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 16A B curve Energy limiting Class 3 Balcony terminal position Data Sheet:...

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£4.30 - £4.30

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Wylex NHXLC50 50A Single Pole Type C Curve 6kA MCB

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Wylex 50A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 50A C curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

View full details

£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLC40 40A Single Pole Type C Curve 6kA MCB

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Wylex 40A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 32A C curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLC32 32A Single Pole Type C Curve 6kA MCB

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Dispatch in 2-5 Days

Wylex 32A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 32A C curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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£2.75

£2.75 - £2.75

£2.75

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

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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...

View full details

£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLC16 16A Single Pole Type C Curve 6kA MCB

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Wylex 16A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 16A C curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLC10 10A Single Pole Type C Curve 6kA MCB

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Wylex 10A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 10A C curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLC06 6A Single Pole Type C Curve 6kA MCB

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

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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLC03 3A Single Pole Type C Curve 6kA MCB

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

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£2.75

£2.75 - £2.75

£2.75

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Wylex NHXLB40 40A Single Pole Type B Curve 6kA MCB

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Wylex 40A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 40A B curve Energy limiting Class 3 Quick release DIN clip No miss busbar...

View full details

£2.75

£2.75 - £2.75

£2.75

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Wylex NHXC50 50A Single Pole Type C Curve 6kA MCB

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Wylex 50A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 50A C curve Energy limiting Class 3 Balcony terminal position Data Sheet...

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£4.30 - £4.30

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£3.58 Exc VAT

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Wylex NHXC40 40A Single Pole Type C Curve 6kA MCB

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Wylex 40A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 40A C curve Energy limiting Class 3 Balcony terminal position Data Sheet...

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£4.30 - £4.30

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£3.58 Exc VAT

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Wylex NHXC32 32A Single Pole Type C Curve 6kA MCB

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Wylex 32A Single Pole Type C Curve 6kA MCB Features Single pole MCB, 32A C curve Energy limiting Class 3 Balcony terminal position Data Sheet...

View full details

£4.30 - £4.30

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£3.58 Exc VAT

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

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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...

View full details

£4.30 - £4.30

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£3.58 Exc VAT

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Wylex NHXC06 6A Single Pole Type C Curve 6kA MCB

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

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Wylex NHXC03 3A Single Pole Type C Curve 6kA MCB

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

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Wylex NHXB50 50A Single Pole Type B Curve 6kA MCB

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Wylex 50A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 50A B curve Energy limiting Class 3 Balcony terminal position Data Sheet:...

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Wylex NHXB10 10A Single Pole Type B Curve 6kA MCB

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Wylex 10A Single Pole Type B Curve 6kA MCB Features Single pole MCB, 10A B curve Energy limiting Class 3 Balcony terminal position Data Sheet:...

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High-Performance MCB Devices

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