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

39059 Products showing for Circuit Breakers

28 of 999+
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 16A Curve B, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 231-9671
  • Mfr. Part No. 2CDS251001R1165 S201 B 16A - 10 KA
1 Box of 1
R 433.02(exc. VAT)
Currently unavailable
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 16A Curve C, 250V DC
  • RS stock no. 772-1518
  • Mfr. Part No. A9N61511
Each
R 1,193.62(exc. VAT)
In Stock
ABB System Pro M Compact S200 MCB, 3P, 80A Curve B, 440V AC, 10 kA Breaking Capacity
  • RS stock no. 231-9681
  • Mfr. Part No. 2CDS253001R0805 S203-B80 6kA
1 Box of 1
R 3,831.83(exc. VAT)
Limited stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 6A Current Rating
  • RS stock no. 344-5327
  • Mfr. Part No. 1658-G21-02-P10-6A
Each
R 123.34(exc. VAT)
In Stock
Siemens 230V ac Undervoltage Release Circuit Trip for use with 3RV2 Series Circuit Breakers
  • RS stock no. 706-1939
  • Mfr. Part No. 3RV2902-1AP0
Each
R 739.98(exc. VAT)
In Stock
Eaton Electronic Circuit breaker
  • RS stock no. 774-0180
  • Mfr. Part No. 121730 PKE-XTUA-32
Each
R 4,129.70(exc. VAT)
In Stock
Finder Busbar
  • RS stock no. 386-4453
  • Mfr. Part No. 093.20
Each
R 102.44(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 500A, Fixed Mount
  • RS stock no. 250-4185
  • Mfr. Part No. 1SDA054461R1
Each
R 66,256.91(exc. VAT)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 10A 3RV2, 3 channels , DIN Rail Mount
  • RS stock no. 159-642
  • Mfr. Part No. 3RV2411-1JA10-0BA0
Each
R 2,529.79(exc. VAT)
In Stock
Better World
ABB Compact Home SH200 MCB, 1P, 20A Curve C, 440V AC, 60V DC, 6 kA Breaking Capacity
  • RS stock no. 539-8245
  • Mfr. Part No. 2CDS211001R0204 SH201-C20
Each
R 376.41(exc. VAT)
In Stock
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 63A, Breaking Capacity 50 kA, Fixed Mount
  • RS stock no. 254-6298
  • Mfr. Part No. C10N3TM063
Each
R 14,706.67(exc. VAT)
Unavailable
Schneider Electric Acti 9 iC60N MCB, 4P, 63A Curve C, 440V AC, 250V DC, 6 kA Breaking Capacity
  • RS stock no. 776-9080
  • Mfr. Part No. A9F74463
Each
R 1,715.40(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 18 Way, 250 A
  • RS stock no. 336-636
  • Mfr. Part No. SEA9BPN18
Each
R 24,966.51(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60N MCB, 4P, 10A Curve C, 400V AC, 12 → 250V DC, 6 kA Breaking Capacity
  • RS stock no. 734-9169
  • Mfr. Part No. A9F77410
Each
R 1,398.65(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 1A Curve C, 400V AC, 125V DC, 6 kA Breaking Capacity
  • RS stock no. 746-7696
  • Mfr. Part No. 2CDS252001R0014 S202-C1
Each
R 1,256.38(exc. VAT)
In Stock
RS PRO MCB, 2P, 32A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 265-0184
Each
R 507.67(exc. VAT)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 10A Curve C, 400V AC, 110V DC, 6 kA Breaking Capacity
  • RS stock no. 746-7769
  • Mfr. Part No. 2CDS253001R0104 S203-C10
Each
R 1,604.75(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 2P, 3A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 124-3164
  • Mfr. Part No. 5SY4203-7
Each
R 1,402.93(exc. VAT)
Temporarily out of stock
Eaton AZ MCB, 2P, 50A Curve B, 400V AC, 25 kA Breaking Capacity
  • RS stock no. 272-0730
  • Mfr. Part No. 174497 AZ-2-B50
Each
R 4,214.29(exc. VAT)
In Stock
RS PRO MCB, 1P, 10A Curve C, 240 → 415V AC, 6 kA Breaking Capacity
  • RS stock no. 265-0188
Each
R 208.84(exc. VAT)
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