MCBs

(136 products)

An MCB, or miniature circuit breaker, is an isolating component installed within a supply board which is designed to automatically trip the circuit if a fault is detected. This means that the power supply is cut off to prevent damage to the circuit, which is typically triggered by an overload or short. A bimetallic strip within the unit heats and bends if a continuous overcurrent comes into contact with it which then trips the switch. There are different MCB types for various applications with a wide range of amp ratings and trip curves available to suit any installation requirements.

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Wylex 32A SP Type B MCB (87979)

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4.9 out of 5 stars
(54)

£11.53

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Wylex 6A SP Type B MCB (48030)

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4.8 out of 5 stars
(66)

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Wylex 16A SP Type B MCB (34544)

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4.8 out of 5 stars
(35)

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Wylex 32A SP Type B MCB (55617)

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Product rating
4.8 out of 5 stars
(34)

£4.20

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MK Sentry 32A SP Type B MCB (145KP)

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0 out of 5 stars

£3.99

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Wylex 16A SP Type B MCB (88460)

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4.6 out of 5 stars
(18)

£4.39

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MK Sentry 16A SP Type B MCB (665KP)

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5 out of 5 stars
(1)

£3.99

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Wylex 20A SP Type B MCB (58106)

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Product rating
4.6 out of 5 stars
(14)

£4.20

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Chint EBG 16A SP Type B MCB (2377V)

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Product rating
4.4 out of 5 stars
(7)
Chint EBG 16A SP Type B  MCB

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Wylex 6A SP Type B MCB (95345)

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Product rating
4.8 out of 5 stars
(13)

£4.20

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MK Sentry 20A SP Type B MCB (358KP)

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0 out of 5 stars

£3.99

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£53.99

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Wylex 40A SP Type B MCB (83787)

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Product rating
4.8 out of 5 stars
(13)

£4.20

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MK Sentry 6A SP Type B MCB (737KP)

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5 out of 5 stars
(1)

£3.99

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£53.99

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