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MCBs

MCBs (Miniature Circuit Breakers) provide essential protection for electrical circuits, automatically switching off in the event of overloads or short circuits.

Designed for domestic, commercial, and industrial use, they are a key safety component within consumer units and distribution boards.

Use cases include protecting lighting, socket, and appliance circuits to ensure reliable operation and compliance with the 18th Edition Wiring Regulations.

The benefits include enhanced safety, reduced risk of fire, and quick restoration compared to fuse-based systems.

YESSS stocks MCBs from trusted brands such as Hager, Schneider, FuseBox, and our exclusive ERiS brand ensuring long-lasting quality and compatibility.

Popular technical specifications include current ratings from 1A to 125A, single- and three-phase options, breaking capacities from 6kA to 70kA, and A, B, C, and D trip curve types.

For safe, compliant, and reliable protection, choose MCBs from YESSS Electrical.

Show details for  20A MCB, 1 Pole, Type B, 10kA

20A MCB, 1 Pole, Type B, 10kA

NB1-63BH1P20
£7.51 Inc VAT £6.26 Ex VAT
Priced per 1
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Show details for  40A MCB, 1 Pole, Type B, 10kA

40A MCB, 1 Pole, Type B, 10kA

NB1-63BH1P40
£7.51 Inc VAT £6.26 Ex VAT
Priced per 1
Please contact your local store for details
Show details for  50A MCB, 1 Pole, Type B, 10kA

50A MCB, 1 Pole, Type B, 10kA

NB1-63BH1P50
£7.51 Inc VAT £6.26 Ex VAT
Priced per 1
Please contact your local store for details
Show details for  63A MCB, 1 Pole, Type B, 10kA

63A MCB, 1 Pole, Type B, 10kA

NB1-63BH1P63
£7.51 Inc VAT £6.26 Ex VAT
Priced per 1
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Show details for  40A MCB, 1 Pole, Type B, 6kA, DIN Rail

40A MCB, 1 Pole, Type B, 6kA, DIN Rail

6MSB40
£6.88 Inc VAT £5.73 Ex VAT
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Show details for  50A Single Pole 6kA MCB - Type B

50A Single Pole 6kA MCB - Type B

5950S
£6.44 Inc VAT £5.37 Ex VAT
Priced per 1
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Show details for  25A Single Pole 6kA MCB - Type B

25A Single Pole 6kA MCB - Type B

5925S
£6.29 Inc VAT £5.24 Ex VAT
Priced per 1
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Show details for  6A Single Pole 6kA MCB - Type B

6A Single Pole 6kA MCB - Type B

5906S
£6.29 Inc VAT £5.24 Ex VAT
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Show details for  10A Single Pole 6kA MCB - Type B

10A Single Pole 6kA MCB - Type B

5910S
£6.29 Inc VAT £5.24 Ex VAT
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Show details for  16A Single Pole 6kA MCB - Type B

16A Single Pole 6kA MCB - Type B

5916S
£6.29 Inc VAT £5.24 Ex VAT
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Show details for  20A Single Pole 6kA MCB - Type B

20A Single Pole 6kA MCB - Type B

5920S
£6.29 Inc VAT £5.24 Ex VAT
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Show details for  45A Single Pole 6kA MCB - Type B

45A Single Pole 6kA MCB - Type B

5945S
£6.29 Inc VAT £5.24 Ex VAT
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Show details for  50A MCB, 1 Pole, Type B, 6kA

50A MCB, 1 Pole, Type B, 6kA

NHXLB50
£4.10 Inc VAT £3.42 Ex VAT
Priced per 1
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Show details for  6A MCB, 1 Pole, B Curve, 6kA

6A MCB, 1 Pole, B Curve, 6kA

NB1-63B1P06
£5.21 Inc VAT £4.34 Ex VAT
Priced per 1
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Show details for  16A MCB, 1 Pole, B Curve, 6kA

16A MCB, 1 Pole, B Curve, 6kA

NB1-63B1P16
£5.21 Inc VAT £4.34 Ex VAT
Priced per 1
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Show details for  32A MCB, 1 Pole, B Curve, 6kA

32A MCB, 1 Pole, B Curve, 6kA

NB1-63B1P32
£5.21 Inc VAT £4.34 Ex VAT
Priced per 1
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Show details for  10A MCB, 1 Pole, C Curve, 6kA

10A MCB, 1 Pole, C Curve, 6kA

NB1-63C1P10
£5.21 Inc VAT £4.34 Ex VAT
Priced per 1
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Show details for  16A MCB, 1 Pole, C Curve, 6kA

16A MCB, 1 Pole, C Curve, 6kA

NB1-63C1P16
£5.21 Inc VAT £4.34 Ex VAT
Priced per 1
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Show details for  32A MCB, 1 Pole, C Curve, 6kA

32A MCB, 1 Pole, C Curve, 6kA

NB1-63C1P32
£5.21 Inc VAT £4.34 Ex VAT
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Show details for  40A MCB, 1 Pole, C Curve, 6kA

40A MCB, 1 Pole, C Curve, 6kA

NB1-63C1P40
£5.21 Inc VAT £4.34 Ex VAT
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Show details for  50A MCB, 1 Pole, Type B, 10kA

50A MCB, 1 Pole, Type B, 10kA

CPB1050B
£5.15 Inc VAT £4.29 Ex VAT
Priced per 1
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Show details for  50A MCB, 1 Pole, Type C, 10kA

50A MCB, 1 Pole, Type C, 10kA

CPB1050C
£5.15 Inc VAT £4.29 Ex VAT
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Show details for  63A MCB, 1 Pole, Type B, 10kA

63A MCB, 1 Pole, Type B, 10kA

CPB1063B
£5.15 Inc VAT £4.29 Ex VAT
Priced per 1
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Show details for  63A MCB, 1 Pole, Type C, 10kA

63A MCB, 1 Pole, Type C, 10kA

CPB1063C
£5.15 Inc VAT £4.29 Ex VAT
Priced per 1
Please contact your local store for details