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MCBs - Miniature Circuit Breakers

MCBs (Miniature Circuit Breakers)

What is an MCB?

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.

How Do MCBs Work?

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.

Can I Change an MCB Myself?

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.

What Size MCB for Sockets?

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.

Can MCBs Be Used for DC?

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.

What Are the Types of MCB?

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.

What is the Tripping Mechanism of an MCB?

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.

Where Are MCBs Installed?

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.

Can I Reset an MCB?

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!

  • Original price £24.23 - Original price £24.23
    Original price
    £24.23 inc VAT
    £24.23 - £24.23
    Current price £24.23 inc VAT
    £20.19 ex VAT

    Wylex NB06 MCB SP 6A 3Ka

    Wylex NB06 MCB SP 6A 3kA • Rated at 6kA

    Original price £24.23 - Original price £24.23
    Original price
    £24.23 inc VAT
    £24.23 - £24.23
    Current price £24.23 inc VAT
    £20.19 ex VAT
  • Original price £10.92 - Original price £10.92
    Original price
    £10.92 inc VAT
    £10.92 - £10.92
    Current price £10.92 inc VAT
    £9.10 ex VAT

    Wylex NSB310-C MCB TP Type C 10A 6kA

    Original price £10.92 - Original price £10.92
    Original price
    £10.92 inc VAT
    £10.92 - £10.92
    Current price £10.92 inc VAT
    £9.10 ex VAT
  • Original price £19.16 - Original price £19.16
    Original price
    £19.16 inc VAT
    £19.16 - £19.16
    Current price £19.16 inc VAT
    £15.97 ex VAT

    Wylex NSB06 MCB SP Type B 6A 6Ka 1 Module

    Wylex NS Miniature Circuit Breaker is the thermal-magnetic current limiting type, having a compact construction which has been achieved by not only...

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    Original price £19.16 - Original price £19.16
    Original price
    £19.16 inc VAT
    £19.16 - £19.16
    Current price £19.16 inc VAT
    £15.97 ex VAT
  • Original price £14.40 - Original price £14.40
    Original price
    £14.40 inc VAT
    £14.40 - £14.40
    Current price £14.40 inc VAT
    £12.00 ex VAT

    Wylex PSB310-B MCB B10 10kA 3P (3MW)

    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...

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    Original price £14.40 - Original price £14.40
    Original price
    £14.40 inc VAT
    £14.40 - £14.40
    Current price £14.40 inc VAT
    £12.00 ex VAT
  • Original price £3.67 - Original price £3.67
    Original price
    £3.67 inc VAT
    £3.67 - £3.67
    Current price £3.67 inc VAT
    £3.06 ex VAT

    Wylex PSB25-B MCB B25 10kA 1P (1MW)

    MCB for use Wylex NH Distribution boards • B curve trip characteristic (3-5In) • 10kA to BS EN 60898-1 (15kA to BS EN 60947-2) @ 240V AC • Single p...

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    Original price £3.67 - Original price £3.67
    Original price
    £3.67 inc VAT
    £3.67 - £3.67
    Current price £3.67 inc VAT
    £3.06 ex VAT

MCBs (Miniature Circuit Breakers)

What is an MCB?

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.

How Do MCBs Work?

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.

Can I Change an MCB Myself?

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.

What Size MCB for Sockets?

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.

Can MCBs Be Used for DC?

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.

What Are the Types of MCB?

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.

What is the Tripping Mechanism of an MCB?

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.

Where Are MCBs Installed?

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.

Can I Reset an MCB?

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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