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

82 of 999+
Temporarily out of stock
ABB PS1 3 Phase Busbar, 690V ac, 17.5mm Pitch
  • RS stock no. 711-6537
  • Mfr. Part No. 1SAM201916R1103 PS1-3-0-100
Each
R 443.30(exc. VAT)
In Stock
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS stock no. 260-8093
  • Mfr. Part No. C40F3TM250D
Each
R 36,727.80(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 A9N1 MCB, 4P, 100A Curve B
  • RS stock no. 219-8287
  • Mfr. Part No. A9N18436
Each
R 10,013.56(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 1.6A Curve C, 400V AC, 72V DC
  • RS stock no. 209-6651
  • Mfr. Part No. 5SL4615-7
Each
R 3,748.38(exc. VAT)
In Stock
Eaton xEffect FAZ MCB, 1P, 1A Curve C, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS stock no. 922-6995
  • Mfr. Part No. 278546 FAZ-C1/1
Each
R 745.49(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 160A, Fixed Mount
  • RS stock no. 236-6604
  • Mfr. Part No. 1SDA068120R1 XT4N 160 MA 160 FF
Each
R 10,404.94(exc. VAT)
Temporarily out of stock
Rockwell Automation FB100 Busbar, 1000V
  • RS stock no. 282-2334
  • Mfr. Part No. FB100352Q1
Each (In a Pack of 4)
R 610.325(exc. VAT)
In Stock
Siemens SIRIUS 3 Phase Busbar Protector, 690V
  • RS stock no. 755-2971
  • Mfr. Part No. 3RV2925-5EB
Each
R 370.42(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 iC60L MCB, 4P, 6A Curve C, 15 kA Breaking Capacity
  • RS stock no. 219-9290
  • Mfr. Part No. A9F94406
Each
R 9,952.95(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 1P, 40A Curve D, 230V AC, 72V DC, 15 kA Breaking Capacity
  • RS stock no. 746-8150
  • Mfr. Part No. 2CDS271001R0401 S201M-D40
Each
R 561.26(exc. VAT)
In Stock
Schneider Electric Acti9 Acti9 iC60 MCB, 1P, 500mA Curve D, 50 kA Breaking Capacity
  • RS stock no. 130-730
  • Mfr. Part No. A9F75170
Each
R 2,569.11(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS stock no. 270-4533
  • Mfr. Part No. 3VA2125-6HM46-0AA0
Each
R 22,049.69(exc. VAT)
Temporarily out of stock
Siemens SENTRON Interlock for use with 3VA5 250
  • RS stock no. 272-0210
  • Mfr. Part No. 3VA9237-0LF10
Each
R 1,662.41(exc. VAT)
In Stock
HENSEL 1, 3 Phase Distribution Board, 6 Way, 63 A
  • RS stock no. 183-2855
  • Mfr. Part No. KV7106
Each
R 1,380.76(exc. VAT)
In Stock
Carling Technologies Thermal Circuit Breaker - MS Single Pole 50V dc Voltage Rating Panel Mount, 10A Current Rating
  • RS stock no. 881-5074
  • Mfr. Part No. MS1-B-14-610-3-1CB-A-C
Each
R 1,576.83(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200M MCB, 4P, 63A Curve C, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS stock no. 231-9779
  • Mfr. Part No. 2CDS274001R0634 S204M C 63A - 15 KA
1 Box of 1
R 4,254.68(exc. VAT)
In Stock
Better World
Siemens 5SV3 RCCB, 40A, 4 Pole, 300mA, Type A, 400V ac
  • RS stock no. 209-6579
  • Mfr. Part No. 5SV3644-6KL
Each
R 3,237.48(exc. VAT)
Temporarily out of stock
Eaton IZMX16H4-V06F-1 Electronic Circuit Breaker 630A , Fixed
  • RS stock no. 127-766
  • Mfr. Part No. 183554 IZMX16H4-V06F-1
Each
R 139,793.28(exc. VAT)
Limited stock
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 15A Current Rating
  • RS stock no. 273-4648
  • Mfr. Part No. 8340-F410-P1M1-A3H0-15A
Each
R 1,406.63(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 16A Curve C, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 225-5988
  • Mfr. Part No. 2CDS251001R0164 S201 C 16A - 6 KA
Each
R 434.95(exc. VAT)
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