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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, B Curve, 6kA

20A MCB, 1 Pole, B Curve, 6kA

CU1MCB20B
£3.10 Inc VAT £2.58 Ex VAT
Priced per 1
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Show details for  20A MCB, 1 Pole, B Curve, 6kA

20A MCB, 1 Pole, B Curve, 6kA

CUMB20-01
£4.52 Inc VAT £3.77 Ex VAT
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Show details for  20A MCB, 1 Pole, C Curve, 10kA

20A MCB, 1 Pole, C Curve, 10kA

PSBL20-C
£8.57 Inc VAT £7.14 Ex VAT
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Show details for  20A MCB, 1 Pole, C Curve, 10kA

20A MCB, 1 Pole, C Curve, 10kA

PSB20-C
£8.57 Inc VAT £7.14 Ex VAT
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Show details for  20A MCB, 1 Pole, C Curve, 6kA

20A MCB, 1 Pole, C Curve, 6kA

NHXC20
£4.64 Inc VAT £3.87 Ex VAT
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Show details for  20A MCB, 1 Pole, C Curve, 6kA

20A MCB, 1 Pole, C Curve, 6kA

NHXLC20
£4.10 Inc VAT £3.42 Ex VAT
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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
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Show details for  20A MCB, 1 Pole, Type B, 10kA

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

CPB1020B
£4.62 Inc VAT £3.85 Ex VAT
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Show details for  20A MCB, 1 Pole, Type B, 230V, 6kA

20A MCB, 1 Pole, Type B, 230V, 6kA

61/B20
£4.58 Inc VAT £3.82 Ex VAT
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Show details for  20A MCB, 1 Pole, Type B, DIN Rail, 230V, 10kA

20A MCB, 1 Pole, Type B, DIN Rail, 230V, 10kA

EMBH120
£16.07 Inc VAT £13.39 Ex VAT
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Show details for  20A MCB, 1 Pole, Type C, 10kA

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

CPB1020C
£4.62 Inc VAT £3.85 Ex VAT
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Show details for  20A MCB, 1 Pole, Type C, DIN Rail, 6kA

20A MCB, 1 Pole, Type C, DIN Rail, 6kA

MT06C201
£3.80 Inc VAT £3.17 Ex VAT
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Show details for  20A MCB, 1 Pole, Type D, DIN Rail, 230V, 10kA

20A MCB, 1 Pole, Type D, DIN Rail, 230V, 10kA

EMDH120
£16.07 Inc VAT £13.39 Ex VAT
Priced per 1
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Show details for  20A MCB, 3 Pole, C Curve, 10kA

20A MCB, 3 Pole, C Curve, 10kA

PSB320-C
£36.38 Inc VAT £30.32 Ex VAT
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Show details for  20A MCB, 3 Pole, C Curve, 10kA

20A MCB, 3 Pole, C Curve, 10kA

PSBL320-C
£36.38 Inc VAT £30.32 Ex VAT
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Show details for  20A MCB, 3 Pole, Type C, 10kA

20A MCB, 3 Pole, Type C, 10kA

CPB1020C3
£15.40 Inc VAT £12.83 Ex VAT
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Show details for  20A MCB, 3 Pole, Type D, DIN Rail, 230V, 10kA

20A MCB, 3 Pole, Type D, DIN Rail, 230V, 10kA

EMDH320
£68.28 Inc VAT £56.90 Ex VAT
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Show details for  20A Single Pole 10kA MCB - Type C

20A Single Pole 10kA MCB - Type C

NB1-63CH1P20
£4.98 Inc VAT £4.15 Ex VAT
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Show details for  20A Single Pole 6kA Domestic MCB - Type B

20A Single Pole 6kA Domestic MCB - Type B

EBG-1P-B20
£3.77 Inc VAT £3.14 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  20A Single Pole MCBs 10kA Type D

20A Single Pole MCBs 10kA Type D

NDN120A
£14.29 Inc VAT £11.91 Ex VAT
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Show details for  20A Triple Pole 10kA - 15kA MCB - Type C

20A Triple Pole 10kA - 15kA MCB - Type C

EMCH320
£68.28 Inc VAT £56.90 Ex VAT
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Show details for  20A Triple Pole 10kA MCB - Type C

20A Triple Pole 10kA MCB - Type C

NB1-63CH3P20
£15.20 Inc VAT £12.67 Ex VAT
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Show details for  20A Triple Pole MCBs 10kA Type D

20A Triple Pole MCBs 10kA Type D

NDN320A
£59.33 Inc VAT £49.44 Ex VAT
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