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

47 of 999+
Legrand Single Phase Surge Arrester, 12kA, 1.2kV, DIN Rail Mount
  • RS stock no. 266-0220
  • Mfr. Part No. 0 039 51
Each
R 11,214.84(exc. VAT)
Better World
Siemens SENTRON 3VA9 Wire Connector for use with 3VA1 100/160
  • RS stock no. 218-1782
  • Mfr. Part No. 3VA9113-0JB11
Each
R 367.20(exc. VAT)
Murrelektronik Limited Mico Pro Distribution Block for use with Circuit Breaker
  • RS stock no. 284-8052
  • Mfr. Part No. 9000-41000-0000212
Each
R 1,054.58(exc. VAT)
Better World
Schneider Electric Multi 9 C60N MCB, 3P, 10A Curve D, 10 kA Breaking Capacity
  • RS stock no. 214-2078
  • Mfr. Part No. M9F12310
Each
R 2,548.68(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 630A, Fixed Mount
  • RS stock no. 260-8263
  • Mfr. Part No. C63W42D630
Each
R 129,400.49(exc. VAT)
Siemens, SENTRON MCCB 4P 800A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 272-0189
  • Mfr. Part No. 3VA1580-6EF42-0AA0
Each
R 60,736.97(exc. VAT)
Better World
Schneider Electric iID RCCB, 63A, 4 Pole, 300mA, Type AC, 415V ac
  • RS stock no. 248-3697
  • Mfr. Part No. A9R15463
Each
R 8,106.00(exc. VAT)
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 10A Curve B, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS stock no. 211-2332
  • Mfr. Part No. M9F21110
Each
R 706.00(exc. VAT)
Better World
Siemens, 3VA1 MCCB 3P 25A, Breaking Capacity 70 kA, Fixed Mount
  • RS stock no. 210-3327
  • Mfr. Part No. 3VA1110-6EE36-0AA0
Each
R 6,827.22(exc. VAT)
Better World
Schneider Electric 1+N Phase Surge Protector, 2kA, 1.5kV, DIN Rail Mount
  • RS stock no. 776-3880
  • Mfr. Part No. A9L16298
Each
R 2,968.61(exc. VAT)
Schneider Electric, NSX MCCB 3P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS stock no. 219-8412
  • Mfr. Part No. LV438277
Each
R 69,556.70(exc. VAT)
ABB RHD T6 W Rotary Handle for use with Tmax T
  • RS stock no. 237-5996
  • Mfr. Part No. 1SDA060407R1 RHD W T6
Each
R 3,411.19(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 209-5259
  • Mfr. Part No. 3VA2580-6HL32-0AA0
Each
R 55,214.47(exc. VAT)
Better World
Schneider Electric Acti 9 C120H MCB, 3P, 80A Curve C, 440V AC, 375V DC, 15 kA, 30 kA Breaking Capacity
  • RS stock no. 776-3023
  • Mfr. Part No. A9N18468
Each
R 7,043.14(exc. VAT)
ABB SACE Emax 2 Fixed Part for use with Circuit Breaker
  • RS stock no. 231-9314
  • Mfr. Part No. 1SDA073908R1 E1.2 W FP Iu=1600 4p HR
Each
R 68,771.15(exc. VAT)
Better World
Schneider Electric TeSys GV5P MCB, 3P, 220A, 690V AC, 70 kA Breaking Capacity
  • RS stock no. 188-4751
  • Mfr. Part No. GV5P220H
Each
R 23,459.41(exc. VAT)
Better World
Schneider Electric, Masterpact MCCB 4P 2.5kA, Fixed Mount
  • RS stock no. 248-3783
  • Mfr. Part No. LV848076
Each
R 303,143.34(exc. VAT)
Better World
Siemens Surge Protector, 70 V dc, 127V ac, Clip-On Mount
  • RS stock no. 122-9477
  • Mfr. Part No. 3RT2916-1JK00
Each
R 254.25(exc. VAT)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V Voltage Rating DIN Rail Mount, 50A Current
  • RS stock no. 272-842
  • Mfr. Part No. GV3L50
Each
R 5,954.48(exc. VAT)
Allen Bradley, 140G MCCB 3P 125A, Module Frame Mount
  • RS stock no. 261-2835
  • Mfr. Part No. 140G-G2E3-D16
Each
R 11,328.08(exc. VAT)
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