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

105 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 271-9381
  • Mfr. Part No. 3VA1163-3GE42-0AA0
Each
R 6,084.24(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric GFP RCCB, 63A, 2 Pole, 240V
  • RS stock no. 256-6821
  • Mfr. Part No. M9R81263
Each
R 6,900.99(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 36 kA
  • RS stock no. 210-1676
  • Mfr. Part No. 3VA1180-4ED32-0AA0
Each
R 4,631.42(exc. VAT)
In Stock
Better World
Schneider Electric Ins320...630, Nsx400...630 Downstream Coupling Connector for use with Source Changeover Systems
  • RS stock no. 221-1271
  • Mfr. Part No. LV432620
Each
R 15,968.18(exc. VAT)
In Stock
HENSEL 1, 3 Phase Distribution Board, 24 Way, 63 A
  • RS stock no. 183-2860
  • Mfr. Part No. KV9224M
Each
R 4,251.07(exc. VAT)
Temporarily out of stock
Legrand DX3 for use with Circuit Breaker
  • RS stock no. 266-1353
  • Mfr. Part No. 410500
Each
R 15,356.07(exc. VAT)
Temporarily out of stock
Socomec 1, 3 Phase Surge Arrester, 80kA, 1.8kV, DIN Rail Mount
  • RS stock no. 252-3594
  • Mfr. Part No. 49821422
Each
R 5,340.85(exc. VAT)
Temporarily out of stock
ABB S800U-UC MCB, 4P, 80A, Type Z, 600V DC, 10 KA Breaking Capacity
  • RS stock no. 141-044
  • Mfr. Part No. 2CCS248365R0001
Each
R 22,353.40(exc. VAT)
Temporarily out of stock
Legrand DX3 RCD, 20A, 1+N Pole, 30mA
  • RS stock no. 731-9626
  • Mfr. Part No. 4 111 65
Each
R 9,162.93(exc. VAT)
Temporarily out of stock
Lovato RCBO, 10A Current Rating, 1P + N Poles, 300mA Trip Sensitivity, Type A, P1RE1NC Range
  • RS stock no. 276-5677
  • Mfr. Part No. P1RE1NC10A300
Each
R 2,999.11(exc. VAT)
Temporarily out of stock
ABB Feeder Terminal for use with SN201
  • RS stock no. 250-4725
  • Mfr. Part No. 2CDL200011R1518
1 Box of 25
R 1,437.39(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 2P, 40A
  • RS stock no. 224-7852
  • Mfr. Part No. 3VA1140-4ED26-0AA0
Each
R 4,901.59(exc. VAT)
Temporarily out of stock
ABB S802C MCB, 2P, 63A Curve B, 415V AC, 25 kA Breaking Capacity
  • RS stock no. 140-538
  • Mfr. Part No. 2CCS882001R0635
Each
R 2,780.23(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 1P, 5A Curve C, 277V AC, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 125-1455
  • Mfr. Part No. 1492-SPM1C050
Each
R 537.23(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4L MCCB 4P 25A, Fixed Mount
  • RS stock no. 236-6724
  • Mfr. Part No. 1SDA068381R1 XT4L 160 TMD 25A FF
Each
R 24,090.64(exc. VAT)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 4P Poles, Type C
  • RS stock no. 237-5108
  • Mfr. Part No. 2CSR254101R1064
Each
R 8,394.93(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS stock no. 272-0182
  • Mfr. Part No. 3VA1580-5EF32-0AA0
Each
R 51,502.10(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SP3720 MCB, 1P, 20A, Type E
  • RS stock no. 231-8336
  • Mfr. Part No. 5SP3720-3
Each
R 3,191.00(exc. VAT)
In Stock
ABB Emax 2, Tmax XT Terminal for use with Circuit Breaker
  • RS stock no. 231-9311
  • Mfr. Part No. 1SDA073906R1 E6.2-XT7/M 10pz
Each
R 1,338.23(exc. VAT)
Temporarily out of stock
Siemens SENTRON 3 Phase Busbar, 230V, 18mm Pitch
  • RS stock no. 226-0824
  • Mfr. Part No. 5ST3673-7
Each
R 895.36(exc. VAT)
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