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

39046 Products showing for Circuit Breakers

1938 of 999+
Temporarily out of stock
Hager NFT MCB, 3P, 25A, 415V AC, 10 kA Breaking Capacity
  • RS stock no. 144-4733
  • Mfr. Part No. NFT325
Each
R 2,950.22(exc. VAT)
Temporarily out of stock
Siemens SENTRON Adapter for use with Circuit Breaker 3VA1
  • RS stock no. 272-0209
  • Mfr. Part No. 3VA9187-0SH20
Each
R 901.37(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2.5kA Ekip Hi-Touch LSI, 3 channels
  • RS stock no. 259-4324
  • Mfr. Part No. 1SDA072478R1
Each
R 363,852.51(exc. VAT)
In Stock
Eaton PKE System-Protective Circuit-Breaker Electronic Circuit Breaker 4A , Fixed
  • RS stock no. 120-828
  • Mfr. Part No. 158244 PKE12/AK/XTU-4
Each
R 3,404.20(exc. VAT)
Temporarily out of stock
ABB S804S MCB, 4P, 6A Curve K, 690V AC, 50 kA Breaking Capacity
  • RS stock no. 140-302
  • Mfr. Part No. 2CCS864001R0067
Each
R 12,356.30(exc. VAT)
Temporarily out of stock
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS stock no. 184-9107
  • Mfr. Part No. DD141MS
Each
R 2,909.86(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 4 channels
  • RS stock no. 259-3813
  • Mfr. Part No. 1SDA071828R1
Each
R 471,333.21(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 32A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS stock no. 271-9909
  • Mfr. Part No. 3VA1132-6GF46-0AA0
Each
R 9,142.37(exc. VAT)
Temporarily out of stock
HENSEL ENYMOD Distribution Board
  • RS stock no. 117-153
  • Mfr. Part No. Mi MP 6
Each
R 1,634.21(exc. VAT)
Temporarily out of stock
ABB SMISSLINE TP MCB, 1P, 1A Curve C, 220V AC
  • RS stock no. 246-2452
  • Mfr. Part No. 2CCS561001R1014
Each
R 1,673.13(exc. VAT)
Temporarily out of stock
Siemens SENTRON Plug for use with Circuit Breaker 3WL10 / 3VA27
  • RS stock no. 266-536
  • Mfr. Part No. 3VW9011-0RC58
Each
R 2,009.54(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 800A IZMX/INX, 4 channels
  • RS stock no. 127-775
  • Mfr. Part No. 183560 IZMX16B4-V08W-1
Each
R 123,541.14(exc. VAT)
Temporarily out of stock
Eaton xEffect - FBSmV RCCB, 40A, 2 Pole, Type A, 240/415V ac
  • RS stock no. 123-198
  • Mfr. Part No. 170215 FBSMV-40/2/1-A
Each
R 2,796.77(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS stock no. 260-8169
  • Mfr. Part No. C40W35E400
Each
R 107,533.17(exc. VAT)
Temporarily out of stock
Better World
Siemens, 0AA0 MCCB 3P 20A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 211-6000
  • Mfr. Part No. 3VA1120-6EE36-0AA0
Each
R 6,346.34(exc. VAT)
In Stock
Lovato RCBO, 32A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, P1 Range
  • RS stock no. 277-5062
  • Mfr. Part No. P1RE1NC32AC300
Each
R 2,420.80(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 55 kA, Fixed Mount
  • RS stock no. 271-9366
  • Mfr. Part No. 3VA1150-5GE42-0AA0
Each
R 7,128.42(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS stock no. 259-4173
  • Mfr. Part No. 1SDA072288R1
Each
R 176,686.41(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 10 kA, Fixed Mount
  • RS stock no. 147-644
  • Mfr. Part No. 3VA5210-6EF41-0AA0
Each
R 26,818.89(exc. VAT)
In Stock
ABB System Pro M Compact SU200M MCB, 2P, 16A Curve K, 440V AC, 440V DC, 15 kA Breaking Capacity
  • RS stock no. 231-9743
  • Mfr. Part No. 2CDS272337R0467 SU202M-K16
1 Box of 1
R 2,529.64(exc. VAT)
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