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

66 of 999+
Temporarily out of stock
Eaton xComfort Distribution Board Enclosure, 12 Way
  • RS stock no. 256-854
  • Mfr. Part No. 280350 BC-O-2/36-ECO
Each
R 3,252.64(exc. VAT)
Temporarily out of stock
ABB, T7S MCCB 4P 1.6kA, Fixed Mount
  • RS stock no. 237-6024
  • Mfr. Part No. 1SDA063002R1 T7S 1600A PR231-LS/I FF
Each
R 131,155.09(exc. VAT)
In Stock
Phoenix Contact Surge Protector, 40kA, DIN Rail Mount
  • RS stock no. 201-5576
  • Mfr. Part No. 2907876
Each
R 5,049.48(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 225A, Breaking Capacity 10 kA, Fixed Mount
  • RS stock no. 147-817
  • Mfr. Part No. 3VA5222-6ED41-2AA0
Each
R 31,486.52(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 20A Curve B, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS stock no. 776-3391
  • Mfr. Part No. A9F76220
Each
R 1,354.25(exc. VAT)
Temporarily out of stock
Siemens 3 Phase Surge Protector, 25kA, DIN Rail Mount
  • RS stock no. 211-0186
  • Mfr. Part No. 5SD7442-1
Each
R 16,283.84(exc. VAT)
In Stock
Phoenix Contact CAPAROC Busbar Connector, 24V dc
  • RS stock no. 269-7937
  • Mfr. Part No. 1110989
Each (In a Pack of 3)
R 445.227(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 55 kA
  • RS stock no. 209-6884
  • Mfr. Part No. 3VA1340-5EF32-0AA0
Each
R 22,972.91(exc. VAT)
Currently unavailable
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 2A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS stock no. 791-3284
  • Mfr. Part No. A9F54102
Each
R 808.64(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 C120H MCB, 3P, 100A Curve C, 440V AC, 375V DC, 15 kA, 30 kA Breaking Capacity
  • RS stock no. 776-3026
  • Mfr. Part No. A9N18469
Each
R 6,988.87(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS stock no. 260-7798
  • Mfr. Part No. C16N32D160
Each
R 25,869.04(exc. VAT)
In Stock
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)4(-4), NZM4(-4)
  • RS stock no. 258-429
  • Mfr. Part No. 271779 NZM4-XHB
Each
R 6,955.95(exc. VAT)
In Stock
Schneider Electric Acti9 Remote Control System for use with iC60 Circuit Breakers
  • RS stock no. 276-1538
  • Mfr. Part No. A9C70124
Each
R 11,842.11(exc. VAT)
Limited stock
ABB S202 Circuit Breaker, 2P, 6A, Type Z, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS stock no. 287-6359
  • Mfr. Part No. 2CDS252001R0378
Each
R 1,793.96(exc. VAT)
In Stock
Eaton xEffect MCB, 3P, 5A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS stock no. 847-3399
  • Mfr. Part No. 278866 FAZ-C5/3
Each
R 2,771.61(exc. VAT)
In Stock
ABB SN201 MCB, 1+N, 6A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS stock no. 186-3477
  • Mfr. Part No. 2CSS245202R0064
Each
R 474.26(exc. VAT)
Temporarily out of stock
ABB Electronic Time Delay for use with E1, E1.2, E2, E2.2, E3, E4, E4.2, E6, E6.2, T7, T8, X1, XT7-XT7M
  • RS stock no. 250-4514
  • Mfr. Part No. 1SDA038318R1
Each
R 9,811.53(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 6A Curve K, 400V AC, 125V DC, 6 kA Breaking Capacity
  • RS stock no. 746-7986
  • Mfr. Part No. 2CDS252001R0377 S202-K6
Each
R 1,729.43(exc. VAT)
Currently unavailable
Schneider Electric Resi9 R9P MCB, 1P, 6A Curve C, 440V AC, 4.5 kA Breaking Capacity
  • RS stock no. 223-7577
  • Mfr. Part No. R9P35606
Each
R 244.65(exc. VAT)
Temporarily out of stock
Legrand Circuit Breaker - 4 Pole 440V Voltage Rating Screw Mount, 60A Current Rating
  • RS stock no. 255-2316
  • Mfr. Part No. 401013
Each
R 13,860.09(exc. VAT)
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