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

39046 Products showing for Circuit Breakers

109 of 999+
Temporarily out of stock
Eaton Adapter
  • RS stock no. 121-503
  • Mfr. Part No. 149454 ASNH100BABB100
Each
R 1,134.44(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 150A, Breaking Capacity 25 kA, Fixed Mount
  • RS stock no. 147-436
  • Mfr. Part No. 3VA5215-6ED31-1AA0
Each
R 20,502.24(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 40A 3VA2, 3 channels
  • RS stock no. 157-407
  • Mfr. Part No. 3VA2140-8HN32-0AA0
Each
R 26,683.42(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 2kA , Fixed
  • RS stock no. 132-903
  • Mfr. Part No. 183767 IZMX40N4-P20F-1
Each
R 391,310.07(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 257-491
  • Mfr. Part No. 3VA5580-5GC46-0AA0
Each
R 82,132.12(exc. VAT)
Temporarily out of stock
ABB Earth & Neutral Terminal Bar for use with MCB
  • RS stock no. 232-0024
  • Mfr. Part No. GJI2320072R0017 SZ-KLB 16
1 Box of 1
R 315.57(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS stock no. 249-874
  • Mfr. Part No. 3VA6560-5HM36-2AA0
Each
R 75,853.93(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SY5 MCB, 2P, 50A Curve B, 10 kA Breaking Capacity
  • RS stock no. 216-6021
  • Mfr. Part No. 5SY5250-6
Each
R 3,139.79(exc. VAT)
Limited stock
Better World
Schneider Electric Acti 9 1 Phase Busbar, 415V ac, 18mm Pitch
  • RS stock no. 776-2755
  • Mfr. Part No. A9XAH157
Each
R 1,827.09(exc. VAT)
In Stock
Allen Bradley 1492 1492-SPM MCB, 3P, 20A Curve D, 277V AC, 10 kA Breaking Capacity
  • RS stock no. 125-1526
  • Mfr. Part No. 1492-SPM3D200
Each
R 1,627.30(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY6 MCB, 2P, 2A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 196-3625
  • Mfr. Part No. 5SY6202-7
Each
R 1,326.39(exc. VAT)
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V Voltage Rating DIN Rail Mount, 23A Current
  • RS stock no. 272-909
  • Mfr. Part No. GV3P25
Each
R 4,591.81(exc. VAT)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 250A NZM, 3 channels , Fixed
  • RS stock no. 121-013
  • Mfr. Part No. 168453 NZMC3-S250-SVE
Each
R 42,680.56(exc. VAT)
In Stock
Eaton xEffect MCB, 2P, 2A Curve C, 125V DC, 10 kA Breaking Capacity
  • RS stock no. 922-7197
  • Mfr. Part No. 279134 FAZ-C2/2-DC
Each
R 3,847.95(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 4P 125A, Fixed Mount
  • RS stock no. 232-0231
  • Mfr. Part No. 1SDA066888R1 XT1B 160 TMD 125A FF
Each
R 9,343.79(exc. VAT)
In Stock
ETA REX12 Electronic Circuit breaker 4A 24V REX12-T, 1 channels , DIN Rail Mount
  • RS stock no. 175-0366
  • Mfr. Part No. REX12-TA1-107-DC24V-4A
Each
R 966.84(exc. VAT)
In Stock
Better World
Schneider Electric Busbar Tap-Off Unit, Canalis Series
  • RS stock no. 248-4068
  • Mfr. Part No. KBC16DCB21
Each
R 707.16(exc. VAT)
In Stock
Europa RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, EUBLMC Range
  • RS stock no. 210-4736
  • Mfr. Part No. EUBLMC6C30A
Each
R 1,167.05(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SJ MCB, 2P, 3A
  • RS stock no. 232-2248
  • Mfr. Part No. 5SJ4203-7HG41
Each
R 3,022.44(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS stock no. 271-9704
  • Mfr. Part No. 3VA11123GD460AA0
Each
R 10,432.69(exc. VAT)
1
109
1953
Results per page

Related links