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

49 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 268-554
  • Mfr. Part No. 3VA6140-5KL31-0AA0
Each
R 29,277.79(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX630 Circuit Breakers
  • RS stock no. 260-8177
  • Mfr. Part No. C6332M500
Each
R 33,459.79(exc. VAT)
In Stock
Allen Bradley 140G Rotary Handle for use with Circuit Breaker
  • RS stock no. 261-2893
  • Mfr. Part No. 140G-H-RMX
Each
R 1,115.43(exc. VAT)
Temporarily out of stock
Schneider Electric Surge Arrester, 20kA, 48V dc, Fixed Mount
  • RS stock no. 288-7106
  • Mfr. Part No. A9L16339
Each
R 11,657.90(exc. VAT)
In Stock
Schneider Electric, ComPact ComPact NSX400, ComPact ComPact NSX630, ComPact ComPact NSX DC, PowerPact PowerPact L
  • RS stock no. 288-1497
  • Mfr. Part No. LV432648
Each
R 5,082.67(exc. VAT)
In Stock
Schneider Electric Surge Arrester, 40kA, 460V ac, Clip-On Mount
  • RS stock no. 288-7110
  • Mfr. Part No. A9L40421
Each
R 24,835.64(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 100A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS stock no. 178-8162
  • Mfr. Part No. LV426267
Each
R 6,081.98(exc. VAT)
In Stock
Schneider Electric Acti 9 Earth & Neutral Terminal Bar for use with Screw Support Busbar
  • RS stock no. 187-807
  • Mfr. Part No. 99217
Each
R 908.26(exc. VAT)
In Stock
Omron Busbar
  • RS stock no. 329-7320
  • Mfr. Part No. G78-16-P2RF-E
Each
R 195.94(exc. VAT)
In Stock
Schneider Electric Acti 9 Cover for use with ARA, IC60, iDPN Vigi, iLD, iSW, ISW-NA, RCA, Reflex iC60
  • RS stock no. 791-2773
  • Mfr. Part No. A9A26981
Each (In a Pack of 20)
R 268.44(exc. VAT)
Temporarily out of stock
TE Connectivity 2204899 Busbar Connector, 48V
  • RS stock no. 201-3500
  • Mfr. Part No. 2204899-1
Each (In a Tray of 40)
R 258.325(exc. VAT)
Temporarily out of stock
Eaton Undervoltage Release
  • RS stock no. 282-7113
  • Mfr. Part No. 259527 NZM2/3-XUV
Each
R 3,465.63(exc. VAT)
Temporarily out of stock
Rockwell Automation 1492-SP 1492-SPM MCB, 3P, 5A Curve C
  • RS stock no. 218-8847
  • Mfr. Part No. 1492-SPM3C050-N
Each
R 2,188.10(exc. VAT)
In Stock
Schneider Electric Spreader for use with ComPact NS630b → 1600, MasterPact NT Circuit Breaker
  • RS stock no. 247-1848
  • Mfr. Part No. 33623
Each
R 10,587.13(exc. VAT)
In Stock
Schneider Electric Surge Arrester, 40kA, 460V ac, Clip-On Mount
  • RS stock no. 288-7109
  • Mfr. Part No. A9L40321
Each
R 19,811.04(exc. VAT)
In Stock
Siemens SENTRON 3VA9 Rotary Operator for use with 3VA15/25 1000
  • RS stock no. 218-1868
  • Mfr. Part No. 3VA9687-0FK21
Each
R 5,041.88(exc. VAT)
Last RS stock
ABB 24V dc Undervoltage Release Circuit Trip for use with DS200, DS201, DS202C, F200, S200, SN201
  • RS stock no. 225-6151
  • Mfr. Part No. 2CSS200911R0007 S2C-UA 24 VDC
Each
R 2,034.00(exc. VAT)
In Stock
Siemens Screw Lead Sealing for use with Cable Gland
  • RS stock no. 203-2514
  • Mfr. Part No. 3RK1901-1MD00
Each (In a Pack of 10)
R 39.019(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX630 Circuit Breakers
  • RS stock no. 260-8194
  • Mfr. Part No. C6346E630
Each
R 64,276.04(exc. VAT)
Temporarily out of stock
Siemens Sentron Remote Controlled Mechanism for use with Miniature Circuit Breakers
  • RS stock no. 187-5158
  • Mfr. Part No. 5ST3057
Each
R 15,146.16(exc. VAT)
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