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MCBs

(215 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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Schneider Electric IKQ 20A SP Type C MCB (924HV)

Schneider Electric IKQ 20A SP Type C MCB

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DIN Rail Mounted Fitting
10kA Breaking Capacity
Type C Curve

Buy 5+ Save 15%-View Offer

Product Quantity

£15.99Inc Vat

British General 10A SP Type B MCB (92222)

British General 10A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

Buy Any 5+ Save 15%-View Offer

Product Quantity

£2.99Inc Vat

Chint EBG 32A SP Type B MCB (3365V)

Chint EBG 32A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

Buy 5+ Save 15%-View Offer

Product Quantity

£2.99Inc Vat

MK Sentry 40A SP Type B MCB (831KP)

MK Sentry 40A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£3.49Inc Vat

Schneider Electric IKQ 16A SP Type C MCB (478HV)

Schneider Electric IKQ 16A SP Type C MCB

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DIN Rail Mounted Fitting
10kA Breaking Capacity
Type C Curve

Buy 5+ Save 15%-View Offer

Product Quantity

£15.99Inc Vat

Schneider Electric IKQ 40A SP Type C MCB (251HV)

Schneider Electric IKQ 40A SP Type C MCB

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DIN Rail Mounted Fitting
10kA Breaking Capacity
Type C Curve

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Product Quantity

£16.99Inc Vat

Schneider Electric IKQ 6A SP Type C MCB (245HV)

Schneider Electric IKQ 6A SP Type C MCB

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DIN Rail Mounted Fitting
10kA Breaking Capacity
Type C Curve

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Product Quantity

£16.99Inc Vat

Schneider Electric IKQ 20A TP Type C 3-Phase MCB (543HV)

Schneider Electric IKQ 20A TP Type C 3-Phase MCB

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DIN Rail Mounted Fitting
10kA Breaking Capacity
Type C Curve

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Product Quantity

£62.99Inc Vat

Wylex 50A SP Type B MCB (66679)

Wylex 50A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£4.49Inc Vat

MK Sentry 45A SP Type B MCB (673KP)

MK Sentry 45A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£3.49Inc Vat

Wylex 16A SP Type B MCB (489FR)

Wylex 16A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£3.99Inc Vat

Schneider Electric Easy9 32A SP Type B MCB (8402P)

Schneider Electric Easy9 32A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£4.49Inc Vat

Schneider Electric Easy9 20A SP Type B MCB (5347P)

Schneider Electric Easy9 20A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£4.49Inc Vat

Crabtree Starbreaker 20A SP Type B MCB (77666)

Crabtree Starbreaker 20A SP Type B MCB

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Plug-In Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£4.69Inc Vat

Crabtree Starbreaker 16A SP Type B MCB (98018)

Crabtree Starbreaker 16A SP Type B MCB

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Plug-In Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£4.69Inc Vat

Schneider Electric IKQ 63A SP Type C MCB (658HV)

Schneider Electric IKQ 63A SP Type C MCB

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DIN Rail Mounted Fitting
10kA Breaking Capacity
Type C Curve

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Product Quantity

£19.49Inc Vat

British General 50A SP Type B MCB (29341)

British General 50A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

Buy Any 5+ Save 15%-View Offer

Product Quantity

£2.99Inc Vat

Chint NB1 16A TP Type C 3-Phase MCB (6686V)

Chint NB1 16A TP Type C 3-Phase MCB

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DIN Rail Mounted Fitting
10kA Breaking Capacity
Type C Curve

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Product Quantity

£13.99Inc Vat

Contactum Defender 20A SP Type B MCB (382HA)

Contactum Defender 20A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£3.29Inc Vat

Schneider Electric Easy9 16A SP Type B MCB (8890P)

Schneider Electric Easy9 16A SP Type B MCB

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DIN Rail Mounted Fitting
6kA Breaking Capacity
Type B Curve

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Product Quantity

£4.49Inc Vat

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