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

39059 Products showing for Circuit Breakers

16 of 999+
Siemens SIRIUS 3 Phase Busbar, 690V, 45mm Pitch
  • RS stock no. 246-5128
  • Mfr. Part No. 3RV1915-1AB
Each
R 211.15(exc. VAT)
ABB System Pro M Compact S200 MCB, 1P, 10A Curve C, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS stock no. 488-6836
  • Mfr. Part No. 2CDS251001R0104 - S201C10
Each
R 430.02(exc. VAT)
Legrand Circuit Breaker - 3 Pole, 125A Current Rating
  • RS stock no. 255-2321
  • Mfr. Part No. 409508
Each
R 20,700.85(exc. VAT)
ETA Thermal Circuit Breaker - 1610 Single Pole 32V dc Voltage Rating, 20A Current Rating
  • RS stock no. 409-902
  • Mfr. Part No. 1610-21-20A
Each
R 257.92(exc. VAT)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 32A, Fixed Mount
  • RS stock no. 254-6304
  • Mfr. Part No. C11B3TM032L
Each
R 7,027.92(exc. VAT)
Hager BF RCCB, 40A, 2P Pole, 300mA, Type A
  • RS stock no. 602-185
  • Mfr. Part No. BF240
Each
R 8,318.63(exc. VAT)
ABB RCCB, 40A, 4 Pole
  • RS stock no. 189-5642
  • Mfr. Part No. 2CSF204023R1400 F204 AC-40/0,03-L
Each
R 2,874.25(exc. VAT)
Schurter Thermal Circuit Breaker - TA45 2 Pole 60 V dc, 240V ac Voltage Rating Panel Mount, 10A Current Rating
  • RS stock no. 868-9030
  • Mfr. Part No. 4430.0022
Each
R 446.49(exc. VAT)
Eaton Three Phase Surge Protector, 40kA, 1.4kV, DIN Rail Mount
  • RS stock no. 120-389
  • Mfr. Part No. 167595 SPCT2-280/3
Each
R 4,889.59(exc. VAT)
Better World
Schneider Electric Acti9 iIG40 RCCB, 40A, 3+N Pole, 30mA, Type AC, 380 → 415V ac
  • RS stock no. 238-3466
  • Mfr. Part No. A9R67740
Each
R 8,279.01(exc. VAT)
Siemens SENTRON 5SJ MCB, 1P, 20A
  • RS stock no. 232-2237
  • Mfr. Part No. 5SJ4120-7HG40
Each
R 986.15(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS stock no. 231-9329
  • Mfr. Part No. 1SDA100347R1 XT5N 630 TMA 630-6300 3pFF
Each
R 31,315.66(exc. VAT)
ABB FH200 RCCB, 63A, 2 Pole, 30mA, Type A
  • RS stock no. 186-3467
  • Mfr. Part No. 2CSF202124R1630
Each
R 2,275.90(exc. VAT)
Better World
Schneider Electric Multi 9 MCB, 3P, 25A Curve C, 10 kA Breaking Capacity
  • RS stock no. 219-9133
  • Mfr. Part No. M9F22325
Each
R 3,049.24(exc. VAT)
Eaton, NZM MCCB 3P 160A, Breaking Capacity 80 kA, Fixed Mount
  • RS stock no. 628-8076
  • Mfr. Part No. 266005 PN2-160
1 Box of 1
R 9,017.73(exc. VAT)
Better World
Schneider Electric iID RCCB, 80A, 4 Pole, 300mA
  • RS stock no. 776-3717
  • Mfr. Part No. A9R14480
Each
R 2,251.78(exc. VAT)
TE Connectivity for use with Circuit Breaker
  • RS stock no. 782-7824
  • Mfr. Part No. 1-1423696-6
Each (In a Pack of 5)
R 53.604(exc. VAT)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 40A Curve D, 415V AC, 10000 A Breaking Capacity
  • RS stock no. 336-614
  • Mfr. Part No. SE10D340
Each
R 2,857.35(exc. VAT)
ABB System Pro M Compact S200 MCB, 3P, 100A Curve C, 440V AC, 6 kA Breaking Capacity
  • RS stock no. 231-9682
  • Mfr. Part No. 2CDS253001R0824 S203-C100 6kA 100A
1 Box of 1
R 3,831.68(exc. VAT)
Lovato ModuLo P1MB MCB, 2P, 6A Curve D, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS stock no. 825-5756
  • Mfr. Part No. P1MB2PD06
Each
R 1,200.79(exc. VAT)
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