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

39049 Products showing for Circuit Breakers

98 of 999+
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS stock no. 246-5162
  • Mfr. Part No. 3RV1915-1DB
Each
R 426.35(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 110 kA, DIN Rail Mount
  • RS stock no. 271-9501
  • Mfr. Part No. 3VA1340-7GF42-0AA0
Each
R 36,526.73(exc. VAT)
Eaton IZMX/INX Electronic Circuit Breaker 800A IZMX/INX, 4 channels , Fixed
  • RS stock no. 127-761
  • Mfr. Part No. 183550 IZMX16N4-V08F-1
Each
R 116,286.49(exc. VAT)
Better World
Schneider Electric, Canalis KN Series
  • RS stock no. 211-0424
  • Mfr. Part No. KNB160ZL20
Each (In a Pack of 10)
R 92.009(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 5 kA, Plug In
  • RS stock no. 244-195
  • Mfr. Part No. 150147 NZMN3-4-VE400-T
Each
R 87,717.45(exc. VAT)
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS stock no. 866-5513
  • Mfr. Part No. 3RV1915-1BB
Each
R 303.37(exc. VAT)
ABB, Tmax XT MCCB 4P 63A, Fixed Mount
  • RS stock no. 236-7368
  • Mfr. Part No. 1SDA067577R1 XT2S 160 TMA 63A FF
Each
R 9,408.60(exc. VAT)
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS stock no. 246-5140
  • Mfr. Part No. 3RV1915-1CB
Each
R 374.16(exc. VAT)
Better World
Schneider Electric iID RCCB, 80A, 4 Pole, 300mA
  • RS stock no. 776-3717
  • Mfr. Part No. A9R14480
Each
R 2,251.78(exc. VAT)
Eaton IZMX/INX Electronic Circuit Breaker 2.5kA , 3 channels , Fixed
  • RS stock no. 132-822
  • Mfr. Part No. 183584 IZMX40H3-P25F-1
Each
R 440,034.72(exc. VAT)
Eaton IZMX/INX Electronic Circuit Breaker 1.25kA , Fixed
  • RS stock no. 132-812
  • Mfr. Part No. 183576 IZMX40B3-P12F-1
Each
R 220,100.95(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 32A, Breaking Capacity 55 kA
  • RS stock no. 210-1652
  • Mfr. Part No. 3VA1132-5EE42-0AA0
Each
R 7,090.97(exc. VAT)
ABB TMAX XT1B MCB, 3P, 63A, 690V AC, 500V DC, 25 kA Breaking Capacity
  • RS stock no. 192-0890
  • Mfr. Part No. 1SDA066805R1
Each
R 5,502.94(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 32A Curve C, 100 → 130V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS stock no. 734-9166
  • Mfr. Part No. A9F77332
Each
R 1,370.49(exc. VAT)
Eaton xEffect MCB, 1+N, 2.5A Curve D
  • RS stock no. 230-1019
  • Mfr. Part No. 177522 FAZ6-D2,5/1N
Each
R 1,484.66(exc. VAT)
Phoenix Contact CLIPLINE Thermal Circuit Breaker - UT 6-TMC Single Pole 250V Voltage Rating DIN Rail Mount, 1A Current
  • RS stock no. 684-3585
  • Mfr. Part No. 0916604
Each
R 454.60(exc. VAT)
Schneider Electric TransferPacT Electronic Circuit Breaker 160A TAA160, Fixed
  • RS stock no. 272-7584
  • Mfr. Part No. TA16D3L1604TPE
Each
R 52,518.96(exc. VAT)
Eaton xEnergy Main Distribution Board
  • RS stock no. 259-242
  • Mfr. Part No. 284174 XPNMCB04
Each
R 1,207.30(exc. VAT)
HENSEL ENYSTAR Distribution Board, 75 A
  • RS stock no. 117-742
  • Mfr. Part No. FP 1318
Each
R 8,108.36(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 6.3kA Ekip Hi-Touch LSI, 4 channels
  • RS stock no. 259-3900
  • Mfr. Part No. 1SDA071929R1
Each
R 969,443.41(exc. VAT)
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