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

39047 Products showing for Circuit Breakers

227 of 999+
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 55 kA
  • RS stock no. 209-6911
  • Mfr. Part No. 3VA2116-5HM32-0AA0
Each
R 17,598.66(exc. VAT)
Schurter Thermal Circuit Breaker - T11 Single Pole 48 V dc, 240V ac Voltage Rating Panel Mount, 3 A, 300mA Current
  • RS stock no. 868-8796
  • Mfr. Part No. 4400.0098
Each (In a Pack of 100)
R 156.507(exc. VAT)
Better World
Siemens SENTRON 3VA1 MCB, 1P, 100A
  • RS stock no. 224-7785
  • Mfr. Part No. 3VA1110-3ED16-0AA0
Each
R 2,786.30(exc. VAT)
Better World
Schneider Electric Cable for use with LTMCU, LTME, LTMR
  • RS stock no. 917-6529
  • Mfr. Part No. LTM9CU30
Each
R 891.17(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 2.5kA, Breaking Capacity 65 kA, Fixed Mount
  • RS stock no. 429-405
  • Mfr. Part No. C250N3FM
Each
R 188,124.00(exc. VAT)
Eaton xComfort KLV Distribution Board Enclosure, 2 Way
  • RS stock no. 125-105
  • Mfr. Part No. 178834 KLV-36HWM-F
Each
R 7,091.84(exc. VAT)
Hager NSN MCB, 2P, 25A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS stock no. 597-954
  • Mfr. Part No. NSN225
Each
R 4,582.51(exc. VAT)
Eaton xEffect MCB, 1P, 4A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS stock no. 769-4668
  • Mfr. Part No. 239033 FAZ6-C4/1
Each
R 624.03(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 209-5128
  • Mfr. Part No. 3VA2110-6KP32-0AA0
Each
R 23,844.36(exc. VAT)
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS stock no. 225-8775
  • Mfr. Part No. 5SU1654-6KK16
Each
R 3,443.32(exc. VAT)
Siemens SENTRON Current Transformer for use with 3VA2
  • RS stock no. 210-9276
  • Mfr. Part No. 3VA9007-0NA10
Each
R 5,149.17(exc. VAT)
Eaton xE?ect - FRCmM-NA RCCB, 40A, 4 Pole, 300mA, 110/190V
  • RS stock no. 121-101
  • Mfr. Part No. 167709 FRCMM-40/4/03-G/A-NA-110
Each
R 4,736.46(exc. VAT)
Socomec for use with Fuse Base
  • RS stock no. 233-3340
  • Mfr. Part No. 65000001
Each (In a Pack of 2)
R 48.48(exc. VAT)
Hager BDF RCD, 25A, 3 Pole, 30mA, Type F, 500V
  • RS stock no. 599-882
  • Mfr. Part No. BDF325F
Each
R 9,749.44(exc. VAT)
Eaton Eaton Moeller Undervoltage Release for use with Motor Protective Circuit Breaker
  • RS stock no. 272-0575
  • Mfr. Part No. 157862 U-PKZ0(24VDC)
Each
R 2,158.74(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 36 kA, Fixed Mount
  • RS stock no. 874-4180
  • Mfr. Part No. 3VA1112-4EF36-0AA0
Each
R 14,527.06(exc. VAT)
Better World
Siemens Sentron 5SY4 MCB, 1P, 10A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS stock no. 383-1964
  • Mfr. Part No. 5SY4110-6
Each
R 252.31(exc. VAT)
Siemens 5SV33 RCCB, 25A, 4 Pole, 30mA, Type B, 440V
  • RS stock no. 328-464
  • Mfr. Part No. 5SV3342-4KK60
Each
R 25,454.66(exc. VAT)
Schurter Thermal Circuit Breaker - TA45 2 Pole 60 V dc, 240V ac Voltage Rating Panel Mount, 6A Current Rating
  • RS stock no. 868-9106
  • Mfr. Part No. 4430.0990
Each
R 831.17(exc. VAT)
Siemens SENTRON 5SP3463 MCB, 4P, 63A, Type E
  • RS stock no. 231-8327
  • Mfr. Part No. 5SP3463-3
Each
R 17,614.44(exc. VAT)
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