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Showing Results For: MCBs

MCBs

MCBs (Miniature Circuit Breakers) are essential electrical safety devices that protect against overcurrent and short circuits by tripping the circuit upon detection of a fault. These devices are typically installed in distribution boards for enhanced, automated electrical safety in residential, commercial, and industrial settings. An MCB comprises several key components, including a trip mechanism, a bimetallic strip or electronic sensor, and a toggle switch that work together to detect faults and trip the circuit breaker to disconnect the power supply. These electrical switches come in various sizes and current ratings to suit different applications and electrical loads. Additionally, MCBs can be manually reset once the fault condition is cleared by toggling the switch to its original position.

Advantages of Using MCBs Include:

  • Compact Size: MCBs are relatively small compared to traditional fuses, making them ideal for installations with limited space.
  • Quick Response: MCBs rapidly respond to faults, reducing damage to electrical equipment and minimising downtime. 
  • Easy Reset: Unlike fuses, MCBs can be easily reset after tripping, making them more convenient for users.

Popular Types of MCBs:

MCBs are categorised based on their tripping characteristics and include:

  • Type B MCBs – These circuit breakers can trip between 3 to 5 times the full load current and are suitable for residential applications.
  • Type C MCBs – They trip between 5 to 10 times the full load current and are ideal for commercial and industrial use.
  • Type D MCBs – These components trip between 10 to 20 times the full load current. They are used for specialised industrial applications with high inrush currents.

Where Can I Use MCBs?

MCBs are versatile safety components that are widely used in almost any electrical installation that requires protection from overcurrent and short circuit conditions. Some typical environments where MCBs can be used include:

  • Residential Buildings
  • Commercial Buildings
  • Industrial Facilities
  • Power Distribution Panels
  • Control Panels
  • Renewable Energy Systems
  • Automotive Applications
  • Marine and Offshore Applications.

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Schneider Electric
Rohs Verified
M9F44106, Schneider Electric
2 In Stock
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1 +
£ 116.79
Schneider Electric
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M9F21208, Schneider Electric
Pre Order
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1 +
£ 77.29
Schneider Electric
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M9F42135, Schneider Electric
Pre Order
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1 +
£ 106.07
Schneider Electric
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M9F23132, Schneider Electric
2 In Stock
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1 +
£ 24.43
Schneider Electric
Rohs Verified
M9F43108, Schneider Electric
Pre Order
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1 +
£ 102.62
Schneider Electric
Rohs Verified
M9F53302, Schneider Electric
Pre Order
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£ 225.22
Schneider Electric
Rohs Verified
M9F52206, Schneider Electric
1 In Stock
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1 +
£ 115.59
Schneider Electric
Rohs Verified
M9F11363, Schneider Electric
1 In Stock
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1 +
£ 291.03
Schneider Electric
Rohs Verified
M9F11306, Schneider Electric
2 In Stock
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1 +
£ 112.04
10 +
£ 89.63
Schneider Electric
Rohs Verified
M9F22140, Schneider Electric
Pre Order
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£ 19.58
Schneider Electric
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M9F42304, Schneider Electric
1 In Stock
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1 +
£ 206.37
Schneider Electric
Rohs Verified
M9F43115, Schneider Electric
1 In Stock
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1 +
£ 34.74
Schneider Electric
Rohs Verified
M9F21116, Schneider Electric
1 In Stock
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£ 22.34
Schneider Electric
Rohs Verified
BDF36020, Schneider Electric
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£ 187.04
Schneider Electric
Rohs Verified
M9F21101, Schneider Electric
2 In Stock
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1 +
£ 29.73
Schneider Electric
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M9U21250, Schneider Electric
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£ 89.25
Schneider Electric
Rohs Verified
M9R81440, Schneider Electric
1 In Stock
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£ 284.16
Schneider Electric
Rohs Verified
M9F21106, Schneider Electric
9 In Stock
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£ 26.12
Schneider Electric
Rohs Verified
M9F21440, Schneider Electric
3 In Stock
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1 +
£ 166.94
Schneider Electric
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M9F23105, Schneider Electric
6 In Stock
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1 +
£ 28.72
Schneider Electric
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M9F42170, Schneider Electric
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£ 92.36
Schneider Electric
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M9F22163, Schneider Electric
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£ 22.79
Schneider Electric
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M9F22203, Schneider Electric
2 In Stock
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£ 75.35
Schneider Electric
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M9F22425, Schneider Electric
3 In Stock
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1 +
£ 150.70
Schneider Electric
Rohs Verified
M9F43315, Schneider Electric
2 In Stock
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£ 206.37
10 +
£ 165.09
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New Items
New items
4 035 45, Legrand

4 035 45, Legrand

The Legrand Thermal magnetic Miniature Circuit Breaker which is compatible with prong-type and fork type supply busbars. Conform to IEC 60898-1 Equipped with special DIN rail clamp Can be equipped with DX³ signalling Nominal Rating is 16A Number of modules is 3
New items
4 035 46, Legrand

4 035 46, Legrand

The Legrand Thermal magnetic Miniature Circuit Breaker which is compatible with prong-type and fork type supply busbars. Conform to IEC 60898-1 Equipped with special DIN rail clamp Can be equipped with DX³ signalling Nominal Rating is 20A Number of modules is 3
New items
4 035 49, Legrand

4 035 49, Legrand

The Legrand Thermal magnetic Miniature Circuit Breaker which is compatible with prong-type and fork type supply busbars. Conform to IEC 60898-1 Equipped with special DIN rail clamp Can be equipped with DX³ signalling Nominal Rating is 40A Number of modules is 3
New items
239045 & FAZ6-B10/1N, Eaton

239045 & FAZ6-B10/1N, Eaton

The Eaton FAZ6 series is the miniature circuit breakers (MCBs) from Eaton's xEffect range has comprehensive range of accessories suitable for subsequent installation. This Eaton MCBs are suitable for the industrial applications as well as residential applications. This MCB have 3-position DIN rail clip which permits removal from existing Busbar system. IP degree of protection is the IP20 Contact position indicator red - green Guide for secure terminal connection
New items
278736 | FAZ-B25/2, Eaton

278736 | FAZ-B25/2, Eaton

Eaton FAZ Series Circuit Breakers The FAZ series by Eaton offers a wide range of quality, highly reliable and safe circuit breakers. Eaton’s FAZ DIN rail mountable circuit breaker is designed for use in control panel applications. Features and Benefits • The Eaton miniature circuit breaker has a current limiting design, providing short circuit interruption to reduce let-through energy, which can damage the circuit. • Rated currents up to 63A. • The toggle can be sealed in both the on and off position where required, and the trip-free design means that the breaker cannot be defeated by holding the handle in the on position. • Reliable and safe operation with six levels of thermal-magnetic over-current protection. • Red or green light indicates the contact position. • Easy installation. • Suitable for supplementary protection.
New items
168087 & FAZ6-D63/3, Eaton

168087 & FAZ6-D63/3, Eaton

Type D MCB's An updated version of the PLS6 MCB but now certified to IEC / EN 60898 standard FAZ MCB's
New items
278848  FAZ-B20/3, Eaton

278848 FAZ-B20/3, Eaton

Eaton FAZ Series Circuit Breakers Features and Benefits
New items
239132  FAZ6-C4/3, Eaton

239132 FAZ6-C4/3, Eaton

Eaton Miniature Circuit Breakers (MCBs) - FAZ6 Series Features and Benefits Standards What are the differences between the Tripping Curves? Type B: Type C: Type D: Type K: Type S: Type Z:
New items
168064  FAZ6-D20/1, Eaton

168064 FAZ6-D20/1, Eaton

Type D MCB's An updated version of the PLS6 MCB but now certified to IEC / EN 60898 standard
New items
239139 | FAZ6-C6/3, Eaton

239139 | FAZ6-C6/3, Eaton

Type C MCB's Professional range of FAZ6 series miniature circuit breakers (MCB’s) from Eaton. These Type C circuit breakers are designed for use with residential applications. FAZ6 series MCB’s are available with either 1, 2, 3 or 4 pole with an instantaneous release response current of 5-10In. All models are highly reliable and excellent quality. FAZ MCB's
New items
177434 & FAZ6-C0,75/4, Eaton

177434 & FAZ6-C0,75/4, Eaton

The Eaton FAZ6 series is the miniature circuit breakers (MCBs) from Eaton's xEffect range has comprehensive range of accessories suitable for subsequent installation. This Eaton MCBs are suitable for the industrial applications as well as residential applications. This MCB have 3-position DIN rail clip which permits removal from existing Busbar system. IP degree of protection is the IP20 Contact position indicator red - green Guide for secure terminal connection
New items
278732 | FAZ-B13/2, Eaton

278732 | FAZ-B13/2, Eaton

Eaton FAZ Series Circuit Breakers The FAZ series by Eaton offers a wide range of quality, highly reliable and safe circuit breakers. Eaton’s FAZ DIN rail mountable circuit breaker is designed for use in control panel applications. Features and Benefits • The Eaton miniature circuit breaker has a current limiting design, providing short circuit interruption to reduce let-through energy, which can damage the circuit. • Rated currents up to 63A. • The toggle can be sealed in both the on and off position where required, and the trip-free design means that the breaker cannot be defeated by holding the handle in the on position. • Reliable and safe operation with six levels of thermal-magnetic over-current protection. • Red or green light indicates the contact position. • Easy installation. • Suitable for supplementary protection.
FAQs
We offer free shipping for orders over £200 if delivery is in the UK. All other orders in the UK, shipping from £7.99 depending on the weight and measurement. Mainland Europe shipping charges start from £25. For all other countries shipping charges start from £50 for products like MCBs and all others.
You can email us directly at sales@enrgtech.co.uk or via our website for any queries regarding MCBs or any other product.
This depends on the MCBs individual product and information that can be found on our website.
Yes, we offer special discounts on orders above £200 for MCBs and all other products.
UK orders normally take between 2/3 working days. International orders normally take between 3/5 working days for all products including MCBs.
Yes. We keep updating our stock frequently and if a product like MCBs is not in stock then we will let you know.