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Back to Power Distribution

MCBs

Miniature circuit breakers, known as MCBs, can turn off electrical circuits in the event of a problem. They’re a type of switch found in a supply board or fuse boxes, designed to prevent damage caused by a short or overload.

What is the Function of MCB?

By automatically cutting off the power, circuit breakers like MCBs help protect electrical systems, appliances and other equipment from damage. Circuit breakers, including RCCBs and RCBOs, also protect users from dangerous electric shocks.

What are the Different Types of MCBs?

There are different types of MCB based on their usage in domestic, commercial and industrial settings. Type B trips between 3 and 5 times its load current. Type C will trip between 5 and 10 times, and Type D between 10 and 20. The latter is best suited for industrial applications with high inductive loads. At Toolstation, we stock many MCBs and accessories from leading brands like Contactum, Protek, Wylex, Crabtree Loadstar and Axiom. This includes top-quality MCBs constructed with high integrity metal for durability.

See also

Surge Protection Units

Switches & Sockets

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Axiom Axiom MCB 16A SP Type B - 53393 - from Toolstation

( 75 )

Product code: 53393 Axiom MCB 16A SP Type B

£3.08

ex. VAT £2.57

Each

Single pole. To EN 60898.

qty

Select from 9 variations

Axiom Axiom MCB 32A SP Type B - 17955 - from Toolstation

( 25 )

Product code: 17955 Axiom MCB 32A SP Type B

£3.08

ex. VAT £2.57

Each

Single pole. To EN 60898.

qty

Select from 9 variations

Axiom Axiom MCB 20A SP Type B - 77567 - from Toolstation

( 75 )

Product code: 77567 Axiom MCB 20A SP Type B

£3.08

ex. VAT £2.57

Each

Single pole. To EN 60898.

qty

Select from 9 variations

Axiom Axiom MCB Blank 4 Module Plastic - 65704 - from Toolstation

( 75 )

Product code: 65704 Axiom MCB Blank 4 Module Plastic

£0.51

ex. VAT £0.42

Each

Single pole. To EN 60898.

qty

Select from 9 variations

Axiom Axiom MCB 6A SP Type B - 26107 - from Toolstation

( 75 )

Product code: 26107 Axiom MCB 6A SP Type B

£3.08

ex. VAT £2.57

Each

Single pole. To EN 60898.

qty

Select from 9 variations

BG BG MCB 16A SP Type B - 19102 - from Toolstation

( 23 )

Product code: 19102 BG MCB 16A SP Type B

£3.09 was £3.87

ex. VAT £2.57

Each

qty

Select from 7 variations

BG BG MCB 32A SP Type B - 32911 - from Toolstation

( 23 )

Product code: 32911 BG MCB 32A SP Type B

£3.09 was £3.87

ex. VAT £2.57

Each

qty

Select from 7 variations

Crabtree Loadstar Crabtree Loadstar MCB 32A Single Pole Type B - 37709 - from Toolstation

( 12 )

Product code: 37709 Crabtree Loadstar MCB 32A Single Pole Type B

£4.18

ex. VAT £3.48

Each

qty

Select from 7 variations

BG BG MCB 20A SP Type B - 41197 - from Toolstation

( 23 )

Product code: 41197 BG MCB 20A SP Type B

£3.09 was £3.87

ex. VAT £2.57

Each

qty

Select from 7 variations

Axiom Axiom MCB 40A SP Type B - 86587 - from Toolstation

( 75 )

Product code: 86587 Axiom MCB 40A SP Type B

£3.08

ex. VAT £2.57

Each

Single pole circuit breaker. To EN 60898.

qty

Select from 9 variations

Wylex Wylex MCB 32A SP Type B - 16034 - from Toolstation

( 54 )

Product code: 16034 Wylex MCB 32A SP Type B

£5.70

ex. VAT £4.75

Each

6kA

qty

Select from 7 variations

BG BG MCB 6A SP Type B - 16954 - from Toolstation

( 5 )

Product code: 16954 BG MCB 6A SP Type B

£3.09 was £3.87

ex. VAT £2.57

Each

qty

Select from 7 variations

Crabtree Loadstar Crabtree Loadstar MCB 40A Single Pole Type B - 24617 - from Toolstation

( 12 )

Product code: 24617 Crabtree Loadstar MCB 40A Single Pole Type B

£6.49

ex. VAT £5.41

Each

qty

Select from 7 variations

Wylex Wylex MCB 40A SP Type B - 22073 - from Toolstation

( 54 )

Product code: 22073 Wylex MCB 40A SP Type B

£4.54

ex. VAT £3.78

Each

6kA

qty

Select from 7 variations

BG BG MCB 40A SP Type B - 39042 - from Toolstation

( 23 )

Product code: 39042 BG MCB 40A SP Type B

£3.09 was £3.87

ex. VAT £2.57

Each

qty

Select from 7 variations

Wylex Wylex MCB 20A SP Type B - 89036 - from Toolstation

( 54 )

Product code: 89036 Wylex MCB 20A SP Type B

£5.70

ex. VAT £4.75

Each

6kA

qty

Select from 7 variations

Wylex Wylex MCB 16A SP Type B - 29719 - from Toolstation

( 54 )

Product code: 29719 Wylex MCB 16A SP Type B

£5.96

ex. VAT £4.97

Each

6kA

qty

Select from 7 variations

Crabtree Loadstar Crabtree Loadstar MCB 16A Single Pole Type B - 95091 - from Toolstation

( 12 )

Product code: 95091 Crabtree Loadstar MCB 16A Single Pole Type B

£4.18

ex. VAT £3.48

Each

qty

Select from 7 variations

Wylex Wylex MCB 6A SP Type B - 73252 - from Toolstation

( 10 )

Product code: 73252 Wylex MCB 6A SP Type B

£5.70

ex. VAT £4.75

Each

6kA

qty

Select from 7 variations

Crabtree Loadstar Crabtree Loadstar MCB 20A Single Pole Type B - 92074 - from Toolstation

( 12 )

Product code: 92074 Crabtree Loadstar MCB 20A Single Pole Type B

£4.18

ex. VAT £3.48

Each

qty

Select from 7 variations

Axiom Axiom MCB 10A SP Type B - 32738 - from Toolstation

( 75 )

Product code: 32738 Axiom MCB 10A SP Type B

£3.08

ex. VAT £2.57

Each

Single pole. To EN 60898.

qty

Select from 9 variations

BG BG MCB Blanks - 70238 - from Toolstation

( 23 )

Product code: 70238 BG MCB Blanks

£3.14

ex. VAT £2.62

10 Pack

qty

Select from 7 variations

Wylex Wylex MCB Metal Blank SP - 96576 - from Toolstation

( 54 )

Product code: 96576 Wylex MCB Metal Blank SP

£7.31

ex. VAT £6.09

10 Pack

Metal Twist Fit Cover Blank Plate 10 Pack

qty

Select from 7 variations

Crabtree Loadstar Crabtree Loadstar MCB Metal Blank Single Pole Type B - 11563 - from Toolstation

( 12 )

Product code: 11563 Crabtree Loadstar MCB Metal Blank Single Pole Type B

£0.69

ex. VAT £0.57

Each

qty

Select from 7 variations

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