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

39067 Products showing for Circuit Breakers

7 of 999+
Schneider Electric MCCB Molded Case Circuit Breaker 3P 400A
  • RS stock no. 339-341
  • Mfr. Part No. SLA3000M
Each
R 30,646.35(exc. VAT)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 320A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 232-0083
  • Mfr. Part No. 1SDA054117R1 T4N320 FF PR221-LS 320A
Each
R 25,602.30(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 6A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS stock no. 791-3385
  • Mfr. Part No. A9F54306
Each
R 2,992.97(exc. VAT)
Siemens 1 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS stock no. 202-7073
  • Mfr. Part No. 5SD7464-1
Each
R 9,045.29(exc. VAT)
Eaton xEffect MCB, 3P, 10A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 624-0456
  • Mfr. Part No. 278869 FAZ-C10/3
Each
R 2,444.75(exc. VAT)
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 10A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS stock no. 191-6088
  • Mfr. Part No. A9P22610
Each
R 912.07(exc. VAT)
Schneider Electric EasyPact Electronic Circuit Breaker 160A, Plug In
  • RS stock no. 122-424
  • Mfr. Part No. LV516303P
Each
R 2,929.83(exc. VAT)
Eaton xEffect MCB, 1+N, 4A Curve B
  • RS stock no. 230-0913
  • Mfr. Part No. 177501 FAZ6-B4/1N
Each
R 712.02(exc. VAT)
Eaton Electronic Circuit Breaker 24V , DIN Rail
  • RS stock no. 261-399
  • Mfr. Part No. PXS24ACC0000 PXS24-PCH
Each
R 140.64(exc. VAT)
Better World
Schneider Electric Multi 9 MCB Mini Circuit Breaker, 3P, 45A Curve C, 277V AC
  • RS stock no. 256-6764
  • Mfr. Part No. M9F22345
Each
R 3,383.21(exc. VAT)
Siemens 3 Phase Surge Protector, 50kA, DIN Rail Mount
  • RS stock no. 211-0182
  • Mfr. Part No. 5SD7414-2
Each
R 15,182.70(exc. VAT)
RS PRO MCB, 2P, 2A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 265-0182
Each
R 541.48(exc. VAT)
Allen Bradley 1492 1492-SPM MCB Mini Circuit Breaker, 1P, 6A Curve B, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS stock no. 125-1421
  • Mfr. Part No. 1492-SPM1B060
Each
R 436.68(exc. VAT)
Siemens ALPHA Busbar
  • RS stock no. 236-8449
  • Mfr. Part No. 8GK9731-0KK50
Each
R 2,025.05(exc. VAT)
ABB TMAX XT1B MCB, 3P, 160A, 690V AC, 500V DC, 25 kA Breaking Capacity
  • RS stock no. 192-0888
  • Mfr. Part No. 66809
Each
R 8,800.04(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 2A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 776-3436
  • Mfr. Part No. A9F74102
Each
R 388.71(exc. VAT)
ABB 12 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS stock no. 183-3758
  • Mfr. Part No. 1SLM006500A2212
Each
R 983.17(exc. VAT)
ABB System Pro M Compact S200M MCB, 3+N, 40A Curve C, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS stock no. 200-800
  • Mfr. Part No. 2CDS273103R0404
Each
R 3,726.47(exc. VAT)
Schneider Electric Acti 9 IC60N MCB, 2P, 20A Curve C
  • RS stock no. 209-1314
  • Mfr. Part No. A9F79220
Each
R 2,050.65(exc. VAT)
Schneider Electric, ComPacT NSX100/160/250 MCCB 4P 63A, Fixed Mount
  • RS stock no. 288-7179
  • Mfr. Part No. C106TM063
Each
R 3,476.79(exc. VAT)
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