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

192 of 999+
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-639
  • Mfr. Part No. 3VA6210-6JP41-0AA0
Each
TWD148,775.00(exc. GST)
Better World
Siemens SENTRON 5SL4 MCB, 3P, 300mA Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 209-6488
  • Mfr. Part No. 5SL4314-8
Each
TWD6,032.00(exc. GST)
Eaton RCBO, 20A Current Rating, 1P + N Poles, 30mA Trip Sensitivity, Type B, xPole Range
  • RS Stock No. 251-461
  • Mfr. Part No. 193529 PXK-B20/1N/003-F
Each
TWD9,272.00(exc. GST)
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 257-107
  • Mfr. Part No. 283868 XBSB323
Each
TWD7,893.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 630A Ekip Touch LSI, 4 channels
  • RS Stock No. 259-3411
  • Mfr. Part No. 1SDA071345R1
Each
TWD229,968.00(exc. GST)
Better World
Siemens, 0AA0 MCCB 3P 25A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 211-6002
  • Mfr. Part No. 3VA1125-3ED32-0AA0
Each
TWD12,841.00(exc. GST)
ABB Emax 2, Tmax XT Terminal for use with Circuit Breaker
  • RS Stock No. 231-9311
  • Mfr. Part No. 1SDA073906R1 E6.2-XT7/M 10pz
Each
TWD2,211.00(exc. GST)
Eaton MSC-DE Electronic Circuit Breaker 16.7A , DIN Rail
  • RS Stock No. 120-894
  • Mfr. Part No. 167810 MSC-DE-1,2-M17-SP(230V50HZ,240V60HZ)
Each
TWD11,530.00(exc. GST)
Hager CDB RCCB, 40A, 4 Pole, 30mA, Type B, 230 → 400V ac
  • RS Stock No. 597-921
  • Mfr. Part No. CDB440F
Each
TWD44,362.00(exc. GST)
ABB Flange for use with Tmax XT
  • RS Stock No. 236-6850
  • Mfr. Part No. 1SDA068654R1
Each
TWD1,962.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LI, 3 channels
  • RS Stock No. 259-4133
  • Mfr. Part No. 1SDA072244R1
Each
TWD212,553.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-254
  • Mfr. Part No. 3VA6210-8JP31-2AA0
Each
TWD135,633.00(exc. GST)
Eaton AKP750 Enclosure for use with Double T Profile, Feeder Circuits
  • RS Stock No. 243-374
  • Mfr. Part No. 138364 AKP750
1 Pack of 3
TWD8,615.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-752
  • Mfr. Part No. 3VA6140-6JQ41-2AA0
Each
TWD101,533.00(exc. GST)
ETA Thermal Circuit Breaker - 2210 Single Pole 277, 480V Voltage Rating DIN Rail Mount, 1.5A Current Rating
  • RS Stock No. 282-8759
  • Mfr. Part No. 2210-T210-K0M1-H121-1.5A
Each
TWD1,675.00(exc. GST)
Siemens SENTRON Connector Plug Socket for use with Molded-Plastic Enclosure
  • RS Stock No. 613-350
  • Mfr. Part No. 5SZ9216
Each
TWD9,262.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-4174
  • Mfr. Part No. 1SDA072289R1
Each
TWD402,693.00(exc. GST)
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-659
  • Mfr. Part No. 3VA5210-7EF31-0AA0
Each
TWD65,652.00(exc. GST)
Phoenix Contact Thermomagnetic Device Circuit Breaker Thermal Circuit Breaker - CB Single Pole 50V dc Voltage Rating,
  • RS Stock No. 216-3247
  • Mfr. Part No. 2800851
Each
TWD1,494.00(exc. GST)
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 2A Current Rating
  • RS Stock No. 217-6368
  • Mfr. Part No. 2800870
Each
TWD3,352.00(exc. GST)
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