Order by 2pm for free next working day delivery on orders over £50 (inc VAT)
Order by 2pm for free
next working day delivery on orders over £50 (inc VAT)
Order by 2pm for free next working day delivery on orders over £50 (inc VAT)
Order by 2pm for free
next working day delivery on orders over £50 (inc VAT)
MCB stands for Miniature Circuit Breaker.
It's a small device designed to interrupt electrical flow when it detects abnormal conditions such as overload or short circuits.
Essentially, it acts as a safety switch – protecting your electrical circuits and preventing potential hazards like fire or equipment damage.
MCBs work by monitoring the flow of electricity through a circuit.
When the current exceeds the MCB's rated capacity, or there's a short circuit, it trips - cutting off the power supply and preventing further damage.
Yes, MCBs are designed for easy installation and replacement.
However, you’ll need to follow proper safety procedures and will need the knowledge and skills to handle electrical work safely.
It's always best to consult a qualified electrician if you're unsure.
The MCB's size depends on the electrical circuit's rating and the appliances connected to it.
A 32A or 40A MCB is typically suitable for socket outlets commonly used in homes.
However, you should consult electrical regulations and guidelines to pick the right size for your specific application.
Yes, MCBs can be used for both AC (alternating current) and DC (direct current) circuits.
However, you should choose MCBs specifically rated for DC applications to ensure you get the right protection and performance.
Various types of MCBs are available, including Type B, Type C, and Type D, each designed to trip at different levels of overload or short circuit currents.
The tripping mechanism of an MCB is typically based on either thermal or magnetic principles.
Thermal MCBs respond to the heat generated by overcurrent, while magnetic MCBs detect sudden surges in current.
Some MCBs feature both mechanisms for better protection.
MCBs are installed in electrical distribution boards, consumer units, or fuse boxes to protect individual circuits or groups of circuits within a building.
They are commonly found in residential, commercial, and industrial settings.
Yes, most MCBs feature a reset function that allows you to restore power to the circuit after it has tripped.
Simply switch the MCB back to the "on" position after fixing the cause of the trip.
Invest in quality MCBs today to ensure the safety and reliability of your electrical installations.
Browse our selection of MCBs to find the perfect solution for your needs!
Miniature circuit breaker 230/400 V 10kA, 1-pole, B, 50 A • CIRCUIT BREAKER 10KA 1POLE B50
Siemens miniature circuit breaker is used to protect systems and installations in buildings and for industrial applications. The devices are approv...
View full detailsMiniature circuit breaker 400 V 10kA, 3-pole, B, 20 A • CIRCUIT BREAKER 10KA 3POLE B20
Siemens miniature circuit breaker is used to protect systems and installations in buildings and for industrial applications. The devices are approv...
View full detailsMiniature circuit breaker 230/400 V 10kA, 1-pole, D, 20 A • Miniature circuit breaker 230/400 V 10 kA, 1-pole, D, 20 A
Miniature circuit breaker 400 V 10kA, 3-pole, D, 63 A • CIRCUIT BREAKER 10KA 3POLE D63
Miniature circuit breaker 400 V 10kA, 3-pole, B, 8A • CIRCUIT BREAKER 10KA 3POLE B8
Miniature circuit breaker 400 V 10kA, 3-pole, D, 25A • CIRCUIT BREAKER 10KA 3POLE D25
Miniature circuit breaker 400 V 10kA, 2-pole, C, 16A • CIRCUIT BREAKER 10KA 2POLE C16
Siemens miniature circuit breaker is used to protect systems and installations in buildings and for industrial applications. The devices are approv...
View full detailsSiemens miniature circuit breaker is used to protect systems and installations in buildings and for industrial applications. The devices are approv...
View full detailsSiemens miniature circuit breaker is used to protect systems and installations in buildings and for industrial applications. The devices are approv...
View full detailsMiniature circuit breaker 230/400 V 10kA, 1-pole, D, 32 A • Miniature circuit breaker 230/400 V 10 kA, 1-pole, D, 32 A
Miniature circuit breaker 400 V 10kA, 3-pole, B, 13A • CIRCUIT BREAKER 10KA 3POLE B13
Siemens miniature circuit breaker is used to protect systems and installations in buildings and for industrial applications. The devices are approv...
View full detailsMiniature circuit breaker 400 V 10kA, 3-pole, B, 25A • CIRCUIT BREAKER 10KA 3POLE B25
Wylex PSB310-B MCB TP Type B 10A 10kA • B curve trip characteristic (3-5In) • 10kA to BS EN 60898-1 (15kA to BS EN 60947-2) @ 415V AC • Triple pole...
View full detailsSystem pro M compact S200M miniature circuit breakers are current limiting. They have two different tripping mechanisms, the delayed thermal trippi...
View full detailsABB 2CDS251001R0505 1 Pole 50A Type B MCB with Failsafe bi-directional cylinder-lift screw terminal. This System pro M compact S201-B50 MCB is curr...
View full detailsABB 2CDS271001R0504 1 Pole 50A Type C MCB with Failsafe bi-directional cylinder-lift screw terminal. This System pro M compact S201M-C50 MCB is cur...
View full detailsCrabtree - Wiring Accessories 70B/16 Polestar Compact MCB SP Type B 16A 16kA • B curve trip characteristic (3-5In) • 16kA to BS EN 60898-1 (15kA to...
View full detailsDorman Smith Switchgear K3PB10 Loadlimiter 63 MCB K Series Type B TP 10A 10kA • Product: Circuit Breaker • Type: MCB • Pole Configuration: TP • Tri...
View full detailsMiniature circuit breaker (MCB) • DIN rail mountable and suitable for use with both pin and comb type busbar systems • Toggle position for positive...
View full detailsMiniature circuit breaker (MCB) • Toggle position for positive contact indication • Selectivity class 3 • Calibration temperature 40°C • Suitable f...
View full detailsMCB stands for Miniature Circuit Breaker.
It's a small device designed to interrupt electrical flow when it detects abnormal conditions such as overload or short circuits.
Essentially, it acts as a safety switch – protecting your electrical circuits and preventing potential hazards like fire or equipment damage.
MCBs work by monitoring the flow of electricity through a circuit.
When the current exceeds the MCB's rated capacity, or there's a short circuit, it trips - cutting off the power supply and preventing further damage.
Yes, MCBs are designed for easy installation and replacement.
However, you’ll need to follow proper safety procedures and will need the knowledge and skills to handle electrical work safely.
It's always best to consult a qualified electrician if you're unsure.
The MCB's size depends on the electrical circuit's rating and the appliances connected to it.
A 32A or 40A MCB is typically suitable for socket outlets commonly used in homes.
However, you should consult electrical regulations and guidelines to pick the right size for your specific application.
Yes, MCBs can be used for both AC (alternating current) and DC (direct current) circuits.
However, you should choose MCBs specifically rated for DC applications to ensure you get the right protection and performance.
Various types of MCBs are available, including Type B, Type C, and Type D, each designed to trip at different levels of overload or short circuit currents.
The tripping mechanism of an MCB is typically based on either thermal or magnetic principles.
Thermal MCBs respond to the heat generated by overcurrent, while magnetic MCBs detect sudden surges in current.
Some MCBs feature both mechanisms for better protection.
MCBs are installed in electrical distribution boards, consumer units, or fuse boxes to protect individual circuits or groups of circuits within a building.
They are commonly found in residential, commercial, and industrial settings.
Yes, most MCBs feature a reset function that allows you to restore power to the circuit after it has tripped.
Simply switch the MCB back to the "on" position after fixing the cause of the trip.
Invest in quality MCBs today to ensure the safety and reliability of your electrical installations.
Browse our selection of MCBs to find the perfect solution for your needs!
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