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Hager MCB

Shop Hager MCBs (miniature circuit breakers), designed to provide reliable protection against overloads and short circuits in electrical installations. Installed within consumer units, MCBs play a vital role in safeguarding electrical circuits by automatically disconnecting power when a fault is detected, helping to prevent damage to wiring and connected equipment.

Hager MCBs are available in a wide range of amp ratings, typically from 6A to 63A, making them suitable for everything from lighting circuits to socket outlets and higher-demand applications. Featuring Type B tripping characteristics, they are ideal for standard domestic and light commercial installations, providing dependable protection for typical electrical loads.

Whether you are installing a new consumer unit or replacing an existing device, Hager MCBs provide a dependable, compliant solution for circuit protection, ensuring safe and efficient operation across a wide range of electrical installations.

Key features of Hager Miniature Circuit Breakers:

  • Reliable circuit protection – Protects against overloads and short circuits to help prevent electrical damage
  • Range of amp ratings – Available from 6A to 63A for different circuit requirements
  • DIN rail mounting – Quick and straightforward installation within consumer units
  • Compatible with Hager boards – Designed for seamless integration with Hager consumer units
  • Compact modular design – Efficient use of space within distribution boards
  • Manufactured to UK standards – Ensures safe and compliant operation
  • Trusted Hager quality – Reliable performance for professional installations

Learn more about Hager MCBs and their features in our FAQs below.

  • Need additional protection against electric shock? Browse Hager RCBOs for combined RCD and MCB functionality.
  • Pair your devices with our Hager consumer units for reliable and compliant circuit distribution.
  • For higher-spec installations, explore Hager AFDD RCBOs offering advanced arc fault detection.

View all Hager Products

If you just need some help, would like to take advantage of our Price Promise & or perhaps have a large order to place. Give our team of professionals a call on 0203 994 5470, drop us an email at sales@electricpoint.com or use our Contact Form.

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Hager MCBs FAQs

Type B and Type C MCBs differ in how quickly they trip when exposed to higher currents.

Type B MCBs trip at lower fault currents (typically 3–5 times the rated current) and are commonly used in standard domestic circuits such as lighting and socket outlets.

Type C MCBs trip at higher fault currents (typically 5–10 times the rated current) and are suited to circuits with higher inrush currents, such as motors, air conditioning units or commercial equipment.

Choosing the correct type ensures reliable operation without unnecessary tripping.

The correct amp rating depends on the circuit design, cable size and intended load. Common examples include:

  • 6A – lighting circuits
  • 16A or 20A – smaller radial circuits or dedicated appliances
  • 32A – socket outlets or ring circuits

It’s important to select an MCB that matches the circuit requirements to ensure safe and compliant operation. Always follow relevant wiring regulations and consult a qualified electrician if needed.

No. MCBs (miniature circuit breakers) are designed to protect against overloads and short circuits only. They help safeguard wiring and equipment by disconnecting the supply when excessive current is detected.

However, MCBs do not detect earth leakage faults, which are the primary cause of electric shock risk. This means they do not provide direct protection for people.

To protect against electric shock, an RCD or RCBO is required. In many modern installations, RCBOs are used instead of MCBs, as they combine overload, short-circuit and earth leakage protection in a single device.

Hager MCBs are specifically designed for use with Hager consumer units and distribution boards to ensure proper fit, reliable performance and compliance with manufacturer specifications.

Using matched components helps maintain safety standards, ensures correct busbar connection and avoids potential installation issues. For best results, Hager devices should always be used within Hager systems.