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

64 of 999+
Better World
Schneider Electric Vertical Distribution Busbar Trunking, 2.5m, 400A, Canalis KS Series
  • RS stock no. 248-4080
  • Mfr. Part No. KSA400EV4254
Each
R 38,678.12(exc. VAT)
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 220A, Fixed Mount
  • RS stock no. 221-1048
  • Mfr. Part No. LV433517
Each
R 49,644.49(exc. VAT)
Hager Hager NEN Circuit Breaker, 1P, 16A Curve B, 230 → 400V AC, 10 kA Breaking Capacity
  • RS stock no. 599-898
  • Mfr. Part No. NEN116
Each
R 1,189.36(exc. VAT)
ABB, Tmax XT MCCB 3P 80A, Fixed Mount
  • RS stock no. 236-7283
  • Mfr. Part No. 1SDA067415R1 XT1N 160 TMD 80A FF
Each
R 5,570.94(exc. VAT)
Allen Bradley 1492 1492-SPM MCB Mini Circuit Breaker, 1P, 10A Curve B, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS stock no. 125-1422
  • Mfr. Part No. 1492-SPM1B100
Each
R 440.06(exc. VAT)
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA2, 3 channels
  • RS stock no. 157-176
  • Mfr. Part No. 3VA2225-7HM32-0AA0
Each
R 29,873.22(exc. VAT)
Better World
Schneider Electric Acti 9 1 Phase Busbar, 415V ac, 18mm Pitch
  • RS stock no. 776-2718
  • Mfr. Part No. A9XPH124
Each
R 539.31(exc. VAT)
Allen Bradley 1492 1492-SPM MCB Mini Circuit Breaker, 1P, 2A Curve B, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS stock no. 125-1418
  • Mfr. Part No. 1492-SPM1B020
Each
R 518.55(exc. VAT)
Phoenix Contact Electronic Circuit Breaker 10A 24V CBM, DIN Rail Mount Type E
  • RS stock no. 890-3806
  • Mfr. Part No. 2905744
Each
R 7,515.27(exc. VAT)
Schneider Electric ComPacT NSX400...630 Vigi add-on for use with Wiring
  • RS stock no. 119-201
  • Mfr. Part No. LV432466
Each
R 50,430.55(exc. VAT)
Better World
Schneider Electric Spreader for use with Compact Nsx 400/630, Easypact Cvs 400/630
  • RS stock no. 221-1233
  • Mfr. Part No. LV432490
Each
R 2,181.58(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 16A Curve B, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS stock no. 776-3398
  • Mfr. Part No. A9F76216
Each
R 1,354.25(exc. VAT)
ABB, T5L MCCB 3P 400A, Fixed Mount
  • RS stock no. 237-5972
  • Mfr. Part No. 1SDA054536R1 T5L400 FF PR221-I 400A V
Each
R 61,490.58(exc. VAT)
Phoenix Contact CLIPLINE Thermal Circuit Breaker - UT 6-TMC Single Pole 250V Voltage Rating DIN Rail Mount, 1A Current
  • RS stock no. 684-3585
  • Mfr. Part No. 0916604
Each
R 454.60(exc. VAT)
ABB, T6S MCCB 3P 800A, Fixed Mount
  • RS stock no. 237-5992
  • Mfr. Part No. 1SDA060279R1 T6S800 FF PR221-I 800A
Each
R 55,860.11(exc. VAT)
RS PRO MCB, 1P, 3A Curve C, 240 → 415V AC, 6 kA Breaking Capacity
  • RS stock no. 265-0191
Each
R 220.05(exc. VAT)
Better World
Siemens SIRIUS Electronic Circuit Breaker 20A 3RV2, 3 channels , DIN Rail Mount
  • RS stock no. 160-227
  • Mfr. Part No. 3RV2331-4BC10
Each
R 3,443.87(exc. VAT)
Siemens 3RV1 Front Plate
  • RS stock no. 210-3504
  • Mfr. Part No. 3RV1923-4E
Each
R 373.01(exc. VAT)
Schneider Electric, Compact MCCB 3P 1kA, Fixed Mount
  • RS stock no. 247-1778
  • Mfr. Part No. 33342
Each
R 62,476.80(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS stock no. 260-8090
  • Mfr. Part No. C40F32D400
Each
R 66,626.37(exc. VAT)
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