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

35874 Products showing for Circuit Breakers

91 of 999+
Better World
Schneider Electric Acti 9 C120N MCB, 3P, 80A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3064
  • Mfr. Part No. A9N18365
Each
TWD15,792.00(exc. GST)
Schneider Electric Acti9 1 Phase Distribution Board, 6 Way, 125 A
  • RS Stock No. 336-619
  • Mfr. Part No. SEA9APN6
Each
TWD6,464.00(exc. GST)
Siemens, SENTRON MCCB 4P 90A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 147-719
  • Mfr. Part No. 3VA5190-4ED41-0AA0
Each
TWD20,721.00(exc. GST)
Eaton Moeller Thermal Magnetic Circuit Breaker - 3 Pole 440V ac Voltage Rating DIN Rail, 200A Current Rating
  • RS Stock No. 221-3489
  • Mfr. Part No. 269216 NZMB2-A200-NA
Each
TWD34,773.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9790
  • Mfr. Part No. 3VA1116-5FF46-0AA0
Each
TWD48,825.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40T XA MCB, 3P, 16A Curve C, 400V AC
  • RS Stock No. 239-9979
  • Mfr. Part No. A9PA2316
Each
TWD4,402.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 5kA Ekip Dip LI, 3 channels
  • RS Stock No. 259-3356
  • Mfr. Part No. 1SDA071271R1
Each
TWD1,620,169.00(exc. GST)
Eaton xPole - PXL PXL MCB, 3P, 63A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 254-132
  • Mfr. Part No. 236406 PXL-B63/3
Each
TWD7,280.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3653
  • Mfr. Part No. 3VA2025-6JP36-0AA0
Each
TWD117,117.00(exc. GST)
Better World
Schneider Electric RCBO, 32A Current Rating, 4P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 247-1931
  • Mfr. Part No. A9D87432
Each
TWD33,398.00(exc. GST)
Hager HMD MCB, 3P, 80A, 400V AC, 15 Breaking Capacity
  • RS Stock No. 602-231
  • Mfr. Part No. HMD380
Each
TWD23,135.00(exc. GST)
Eaton PXS24-BBC Busbar Cover for use with PXS24 Series
  • RS Stock No. 261-667
  • Mfr. Part No. PXS24ACC0002 PXS24-BBC
Each
TWD225.00(exc. GST)
ABB S804S MCB, 4P, 32A, UC-B, 1000V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-781
  • Mfr. Part No. 2CCS864001R1325
Each
TWD40,865.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 2P, 63A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7582
  • Mfr. Part No. 2CDS252001R0635 S202-B63
Each
TWD1,729.00(exc. GST)
ABB Tmax XT Connector Plug Socket for use with Tmax XT
  • RS Stock No. 237-6067
  • Mfr. Part No. 1SDA066412R1 XT1..4
Each
TWD2,312.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 25A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3357
  • Mfr. Part No. A9F54225
Each
TWD2,606.00(exc. GST)
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 16A Current Rating
  • RS Stock No. 344-5333
  • Mfr. Part No. 1658-G21-02-P10-16A
Each
TWD196.00(exc. GST)
ETA Thermal Circuit Breaker - 8340 Single Pole 80V dc Voltage Rating Flange Mount, 1A Current Rating
  • RS Stock No. 273-4597
  • Mfr. Part No. 8340-F410-P1M1-A3H0-1A
Each
TWD3,465.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60L MCB, 2P, 16A Curve B, 15 kA Breaking Capacity
  • RS Stock No. 219-9251
  • Mfr. Part No. A9F93216
Each
TWD7,247.00(exc. GST)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 232-0262
  • Mfr. Part No. 1SDA067559R1 XT2S 160 TMA 125A FF
Each
TWD14,881.00(exc. GST)
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