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Circuit Breakers

Having an effective and well-designed circuit protection system in every building is vital. It not only protects machinery and equipment from costly damage or even worse an electrical fire, but good circuit protection also ensures people are safe too.

Here at RS we stock an extensive range of high-quality products within our circuit breaker range. They include various types of protection devices as well as consumer units, distribution boards and accessories. Whether you are designing and building a new system or maintaining an old one we have everything you need, providing the perfect end-to-end solution. We offer Next Day Delivery on thousands of items and stock a wide range of products from trusted suppliers such as Schneider Electric, Siemens, ABB, and RS PRO. You’ll also find our Better World range, products designed with sustainability in mind to support more environmentally responsible choices.

Circuit Breaker Types

  • RCBO Breakers - RCBO stands for Residual Current Circuit Breaker with Over Current protection. Installed in consumer units they protect from short circuits, overload current and residual current as they combine all the functions of an MCB and an RCCB.
  • RCCB Breakers - RCCB stands for Residual Current Circuit Breaker. They are designed to quickly disconnect any circuit as soon as current leaks to the earthing wire. RCCBs are also effective in protecting from electrocution or shock from direct contact.
  • MCB Breakers - MCB stands for Miniature Circuit Breaker. They are designed to protect an electric circuit from overcurrent only. They do not safeguard people from electric shock caused by earth leakage.
  • MCCB Breakers - MCCB stands for Moulded Case Circuit Breaker. They are another type of electrical protection device used in higher current rating applications where an MCB would not suffice. An MCCB protects against overload and short circuit faults. With its high breaking capacity and a wider range of current ratings, MCCBs are typically found in industrial systems rather than domestic systems.

Protection Solutions

Alongside our range of circuit breakers, we also offer a variety of other electrical protection products to ensure complete safety and reliability across your installations:

These solutions are designed to work seamlessly with circuit breakers, providing layered protection and peace of mind.

  • Surge Protection Devices - Safeguard your systems from voltage spikes caused by lightning or switching events.
  • Consumer Units - Centralise and manage circuit protection in residential and commercial settings.
  • Distribution Boards - Efficiently distribute electrical power across multiple circuits with integrated protection.
Busbar Feed & Tap-Off Units
Busbar Feed & Tap-Off Units
Busbar Trunking
Busbar Trunking
Busbar Trunking Accessories
Busbar Trunking Accessories
Busbars
Busbars
Circuit Breaker Accessories
Circuit Breaker Accessories
Circuit Trips
Circuit Trips
Consumer Units
Consumer Units
Distribution Boards
Distribution Boards
Electronic Circuit Breakers
Electronic Circuit Breakers
Energy Monitoring Devices
Energy Monitoring Devices
MCBs
MCBs
MCCBs
MCCBs
RCBOs
RCBOs
RCCBs
RCCBs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39582 Products showing for Circuit Breakers

1 of 999+
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 16A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3297
  • Mfr. Part No. A9F54116
Subtotal (1 unit)
£24.20(exc. VAT)
£24.20/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 4A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3281
  • Mfr. Part No. A9F54104
Subtotal (1 unit)
£29.04(exc. VAT)
£29.04/unit
In Stock
RS PRO, RS, RS61 Circuit Breaker 3-Pole 400A, Breaking Capacity 36 kA
  • RS Stock No. 683-385
Subtotal (1 unit)
£166.29(exc. VAT)
£166.29/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3307
  • Mfr. Part No. A9F54120
Subtotal (1 unit)
£24.20(exc. VAT)
£24.20/unit
In Stock
RS PRO NF14 Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A 400V ac
  • RS Stock No. 284-2373
Subtotal (1 unit)
£50.83(exc. VAT)
£50.83/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 2-Pole, 6A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3332
  • Mfr. Part No. A9F54206
Subtotal (1 unit)
£80.18(exc. VAT)
£80.18/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 20A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3391
  • Mfr. Part No. A9F54320
Subtotal (1 unit)
£106.92(exc. VAT)
£106.92/unit
In Stock
RS PRO DHMZ Miniature Circuit Breaker, 1-Pole, 6A, Type C, 240V ac AC, 240 V dc DC, 10 kA Breaking Capacity
  • RS Stock No. 265-0204
Subtotal (1 unit)
£8.66(exc. VAT)
£8.66/unit
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In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 6A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3152
  • Mfr. Part No. A9F53106
Subtotal (1 unit)
£27.39(exc. VAT)
£27.39/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 6A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3385
  • Mfr. Part No. A9F54306
Subtotal (1 unit)
£117.64(exc. VAT)
£117.64/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 10A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3388
  • Mfr. Part No. A9F54310
Subtotal (1 unit)
£106.92(exc. VAT)
£106.92/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 32A, Type D, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3574
  • Mfr. Part No. A9F55332
Subtotal (1 unit)
£112.28(exc. VAT)
£112.28/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 790-9294
  • Mfr. Part No. A9D11816
Subtotal (1 unit)
£148.47(exc. VAT)
£148.47/unit
In Stock
Europa Residual Current Circuit Breaker with Overload Protection, 16A Current Rating, 2-Pole, 30 mA Trip Sensitivity,
  • RS Stock No. 153-3459
  • Mfr. Part No. EUBLMC16C30A
Subtotal (1 unit)
£69.96(exc. VAT)
£69.96/unit
In Stock
RS PRO, RS, RS13N Circuit Breaker 4-Pole 125A, Breaking Capacity 36 kA
  • RS Stock No. 683-394
Subtotal (1 unit)
£72.56(exc. VAT)
£72.56/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 3-Pole, 4A, Type C, 12V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3376
  • Mfr. Part No. A9F54304
Subtotal (1 unit)
£129.67(exc. VAT)
£129.67/unit
In Stock
Europa EUC1P EUC Miniature Circuit Breaker, 1-Pole, 4A, Type C, 400V ac AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6490
  • Mfr. Part No. EUC1P4C
Subtotal (1 unit)
£10.24(exc. VAT)
£10.24/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 1A, Type C, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3275
  • Mfr. Part No. A9F54101
Subtotal (1 unit)
£36.17(exc. VAT)
£36.17/unit
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 10A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3161
  • Mfr. Part No. A9F53110
Subtotal (1 unit)
£24.84(exc. VAT)
£24.84/unit
In Stock
Schneider Electric Acti9 Acti9 3 Phase Distribution Board 250A 8 Way
  • RS Stock No. 339-831
  • Mfr. Part No. SEA9BPN8
Subtotal (1 unit)
£431.30(exc. VAT)
£431.30/unit
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Guides & Articles

RCBOs Guide
There are many things to consider when choosing the right RCBO. Find out more in our comprehensive RCBOs guide.
Read more
Distribution Boards Guide
Our distribution boards guide explains what they are, their uses and types, and how to connect distribution boards.
Read more
MCBs Guide
What are MCBs and how do they work? Discover all you need to know in our comprehensive guide.
Read more
A Complete Guide to Industrial Surge Protection
Discover more in our guide and get to know the uses and importance of an industrial surge protection device.
Read more

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