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.

What are the different types of circuit breakers?

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.

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

39047 Products showing for Circuit Breakers

1877 of 999+
Temporarily out of stock
SpringflapwithcutoutforHMImoduleHighFeat
  • RS stock no. 156-514
  • Mfr. Part No. 3RW5950-0GL30
Each
R 380.46(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS stock no. 236-6776
  • Mfr. Part No. 1SDA068499R1 XT4S 160 Ekip I 160A FF
Each
R 20,229.48(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 270-3556
  • Mfr. Part No. 3VA2010-6JP42-0AA0
Each
R 24,840.64(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Hi-Touch LSI, 4 channels
  • RS stock no. 259-3653
  • Mfr. Part No. 1SDA071628R1
Each
R 208,174.74(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip G Hi-Touch LSIG, 4 channels
  • RS stock no. 259-3667
  • Mfr. Part No. 1SDA071640R1
Each
R 240,192.59(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 85 kA
  • RS stock no. 209-6922
  • Mfr. Part No. 3VA2125-6HN46-0AA0
Each
R 21,103.14(exc. VAT)
Temporarily out of stock
ABB Tmax XT Flexible Bar for use with XT3
  • RS stock no. 237-6182
  • Mfr. Part No. 1SDA066967R1 FB XT3 6PCS
Each
R 1,069.14(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4125 MCB, 1P, 25A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS stock no. 300-017
  • Mfr. Part No. 5SJ4125-8HG40
Each
R 1,182.15(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SL64 MCB, 3P, 50A Curve B, 440V AC, 62.5V DC, 6 kA Breaking Capacity
  • RS stock no. 328-302
  • Mfr. Part No. 5SL6450-6
Each
R 3,247.39(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS stock no. 238-3347
  • Mfr. Part No. A9DV7620
Each
R 6,163.17(exc. VAT)
Temporarily out of stock
ABB RCBO, 40A Current Rating, 3P Poles, Type B
  • RS stock no. 237-5089
  • Mfr. Part No. 2CSR253101R1405
Each
R 7,146.05(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 400A, Fixed Mount
  • RS stock no. 250-4088
  • Mfr. Part No. 1SDA054357R1
Each
R 63,726.19(exc. VAT)
Temporarily out of stock
Siemens 400V (Volts) Remote Switch Circuit Trip for use with Remote Control Switch
  • RS stock no. 613-320
  • Mfr. Part No. 5TT4105-4
Each
R 1,171.27(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS stock no. 260-9531
  • Mfr. Part No. C10R3MA050
Each
R 22,275.18(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY5 MCB, 2P, 50A Curve C, 10 kA Breaking Capacity
  • RS stock no. 216-4785
  • Mfr. Part No. 5SY5250-7
Each
R 5,177.48(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LSIG, 4 channels
  • RS stock no. 259-3454
  • Mfr. Part No. 1SDA071396R1
Each
R 136,847.86(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 270-4634
  • Mfr. Part No. 3VA2140-6JP42-0AA0
Each
R 26,631.15(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Touch LSIG, 3 channels
  • RS stock no. 259-4234
  • Mfr. Part No. 1SDA072356R1
Each
R 150,111.40(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IEG66 2 Pole Panel Mount, 35A Current Rating
  • RS stock no. 275-0207
  • Mfr. Part No. IEG66-1-51-35.0-A-01-V
1 Box of 5
R 9,426.39(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS stock no. 260-7977
  • Mfr. Part No. C25R42D160
Each
R 62,732.70(exc. VAT)
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