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

151 of 999+
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-372
  • Mfr. Part No. 3VA5212-7EF31-2AA0
Each
TWD71,807.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 100A 3VA2, 4 channels
  • RS Stock No. 157-075
  • Mfr. Part No. 3VA2110-5JP46-0AA0
Each
TWD70,165.00(exc. GST)
Better World
Siemens SIRIUS Electronic Circuit Breaker 500mA 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-099
  • Mfr. Part No. 3RV2311-0FC10
Each
TWD3,918.00(exc. GST)
Eaton IZMX/INX Electronic Circuit Breaker 3.2kA IZMX, 4 channels
  • RS Stock No. 132-916
  • Mfr. Part No. 183808 IZMX40H4-V32W-1
Each
TWD1,084,812.00(exc. GST)
Siemens SENTRON 5SL64 MCB, 4P, 20A Curve B, 440V AC, 62.5V DC, 6 kA Breaking Capacity
  • RS Stock No. 328-353
  • Mfr. Part No. 5SL6420-6
Each
TWD4,138.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 150A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-867
  • Mfr. Part No. 3VA6115-7JQ41-2AA0
Each
TWD139,082.00(exc. GST)
Contactum 14 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9150
  • Mfr. Part No. DDS14188SPMS-P01
Each
TWD9,960.00(exc. GST)
Siemens SENTRON Cover Frame for use with 3VA11
  • RS Stock No. 162-025
  • Mfr. Part No. 3VA9053-0SB20
Each
TWD1,264.00(exc. GST)
ABB System Pro M Compact S200M MCB, 1P, 32A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4188
  • Mfr. Part No. 2CDS271001R0324 S201M-C32
Each
TWD677.00(exc. GST)
ABB Tmax XT Extended Front Terminal for use with Circuit Breaker
  • RS Stock No. 232-0228
  • Mfr. Part No. 1SDA066865R1 EF XT1 3PCS
Each
TWD1,382.00(exc. GST)
Eaton Eaton Moeller Series IZMX/INX Locking Device for use with INX40…, IZMX40…
  • RS Stock No. 239-875
  • Mfr. Part No. 184227 IZMX-PLPC40-M-1
Each
TWD4,100.00(exc. GST)
Siemens 5SM26 RCCB, 40A, 2 Pole, 300mA, Type AC, 230V
  • RS Stock No. 328-416
  • Mfr. Part No. 5SM2623-2
Each
TWD7,126.00(exc. GST)
Sensata Airpax Airpax Thermal Circuit Breaker - LELHK11 2 Pole Panel Mount, 7A Current Rating
  • RS Stock No. 275-0385
  • Mfr. Part No. LELHK11-1-62-7.00-U-01-V
1 Box of 5
TWD24,917.00(exc. GST)
Siemens, SENTRON MCCB 4P 150A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-914
  • Mfr. Part No. 3VA5215-5EF41-0AA0
Each
TWD63,190.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 45A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-744
  • Mfr. Part No. 3VA5245-6ED31-0AA0
Each
TWD32,491.00(exc. GST)
Eaton xEffect FAZ MCB, 1P, 20A Curve B, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-661
  • Mfr. Part No. 132744 FAZ-B20/1-RT
Each
TWD1,276.00(exc. GST)
Hager Hager HMB Circuit Breaker, 4P, 80A Curve B, 415V AC, 15 kA Breaking Capacity
  • RS Stock No. 599-860
  • Mfr. Part No. HMB480
Each
TWD39,315.00(exc. GST)
xEffect MCB, 4P, 50A Curve C, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 252-930
  • Mfr. Part No. 211792 AZ-4-C50
Each
TWD16,169.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 268-501
  • Mfr. Part No. 3VA6110-5HM41-0AA0
Each
TWD57,855.00(exc. GST)
Schneider Electric, PowerPact MCCB 2P 35A, Breaking Capacity 35 kA, Clip-On
  • RS Stock No. 341-123
  • Mfr. Part No. BGF26035
Each
TWD26,251.00(exc. GST)
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