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

276 of 999+
Temporarily out of stock
ABB RCBO, 20A Current Rating, 2P Poles, Type B
  • RS stock no. 237-3385
  • Mfr. Part No. 2CSR252001R1205
Each
R 4,755.54(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 630A, Breaking Capacity 9 kA, Plug In
  • RS stock no. 231-672
  • Mfr. Part No. 110908 NZMH3-4-AE630-T
Each
R 97,606.90(exc. VAT)
In Stock
Schneider Electric Acti 9 Spacer for use with C120/C60 Miniature Circuit Breakers, Clario/Librio/ProDis Circuit
  • RS stock no. 776-2819
  • Mfr. Part No. A9N27062
Each
R 76.12(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 210-1733
  • Mfr. Part No. 3VA2225-6HN42-0AA0
Each
R 29,681.89(exc. VAT)
Temporarily out of stock
ABB S803N MCB, 3P, 50A Curve B, 690V AC, 36 kA Breaking Capacity
  • RS stock no. 140-483
  • Mfr. Part No. 2CCS893001R0505
Each
R 5,222.54(exc. VAT)
In Stock
RS PRO Industrial Surge Protector, 40kA, 620 V, DIN Rail Mount
  • RS stock no. 101-755
Each
R 1,330.57(exc. VAT)
Temporarily out of stock
Schneider Electric IKQ RCD, 80A, 4 Pole, 30mA, 400V ac
  • RS stock no. 339-382
  • Mfr. Part No. SED80034
Each
R 8,409.35(exc. VAT)
In Stock
Schneider Electric, ComPacT NSX Circuit breaker 1P 63A, Breaking Capacity 25 kA, Busbar System
  • RS stock no. 654-191
  • Mfr. Part No. IL0631P251
Each
R 3,699.80(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 iID RCCB, 25A, 2 Pole, 300mA, Type A-SI, 220 → 240V ac
  • RS stock no. 654-800
  • Mfr. Part No. A9R61225
Each
R 6,278.35(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 3P, 4A Curve B
  • RS stock no. 230-0916
  • Mfr. Part No. 177584 FAZ6-B4/3
Each
R 1,996.49(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti 9 Range
  • RS stock no. 790-9452
  • Mfr. Part No. A9D56620
Each
R 6,651.29(exc. VAT)
Temporarily out of stock
Siemens SENTRON Nut Keeper Kit for use with 3VA1
  • RS stock no. 269-7074
  • Mfr. Part No. 3VA9114-0QG00
Each (In a Pack of 4)
R 236.355(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA Ekip Touch LSI, 4 / f channels
  • RS stock no. 259-3951
  • Mfr. Part No. 1SDA071995R1
Each
R 870,175.09(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ4132 MCB, 1P, 32A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS stock no. 299-738
  • Mfr. Part No. 5SJ4132-8HG41
Each
R 1,533.87(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - CPP Single Pole Panel Mount, 10A Current Rating
  • RS stock no. 275-0181
  • Mfr. Part No. CPP11-52-10.0A-OC-V
1 Box of 10
R 4,540.17(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 268-498
  • Mfr. Part No. 3VA6110-5HL31-0AA0
Each
R 12,293.93(exc. VAT)
In Stock
Schneider Electric TeSys Thermal Circuit Breaker - GB2 2 Pole 250V Voltage Rating, 16A Current Rating
  • RS stock no. 219-9316
  • Mfr. Part No. GB2CD21
Each (In a Pack of 6)
R 1,392.91(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 2P, 3A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3333
  • Mfr. Part No. 278750 FAZ-C3/2
Each
R 1,829.15(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 270-3660
  • Mfr. Part No. 3VA2025-6KQ32-0AA0
Each
R 27,654.63(exc. VAT)
Temporarily out of stock
Schneider Electric Surge Arrester, 8kA, 1.1kV, Plug In Mount
  • RS stock no. 357-452
  • Mfr. Part No. A9L16312
Each
R 2,867.89(exc. VAT)
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