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

1716 of 999+
Siemens Single Phase Industrial Surge Protection, 2A, 230V (Volts), DIN Rail Mount
  • RS Stock No. 266-9587
  • Mfr. Part No. 5SY1710-2
Each
TWD2,277.00(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 1P, 500mA Curve C, 253V AC, 72V DC, 20 kA Breaking Capacity
  • RS Stock No. 231-9670
  • Mfr. Part No. 2CDS251001R0984 S201 C 0.5A - 10 KA
1 Box of 1
TWD702.00(exc. GST)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-9515
  • Mfr. Part No. C10N4TM100
Each
TWD35,305.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-4072
  • Mfr. Part No. 1SDA072156R1
Each
TWD252,296.00(exc. GST)
Legrand 230V (Volts) Circuit Trip Circuit Trip for use with DX³
  • RS Stock No. 266-1298
  • Mfr. Part No. 406286
Each
TWD2,880.00(exc. GST)
ABB Tmax T Shunt Closing Release for use with Circuit Breaker
  • RS Stock No. 232-0145
  • Mfr. Part No. 1SDA062076R1 SCR T7M-X1 24VAC/DC
Each
TWD5,245.00(exc. GST)
Legrand DNX3 Circuit Breaker, 2P, 2A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 266-1312
  • Mfr. Part No. 406876
Each
TWD1,409.00(exc. GST)
ABB Opening Solenoid for use with Tmax XT
  • RS Stock No. 237-6279
  • Mfr. Part No. 1SDA067208R1
Each
TWD32,540.00(exc. GST)
Better World
Schneider Electric Busbar End Feed Unit, Canalis KS Series
  • RS Stock No. 211-0475
  • Mfr. Part No. KSA630ABG4
Each
TWD58,252.00(exc. GST)
Better World
Siemens, 0AA0 MCCB 4P 250A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 211-6044
  • Mfr. Part No. 3VA1225-4GF42-0AA0
Each
TWD55,433.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-365
  • Mfr. Part No. 3VA6210-8JT31-0AA0
Each
TWD123,373.00(exc. GST)
ABB AC Switch Disconnectors Accessories Switch Disconnector for use with Low-Voltage Switch Technology
  • RS Stock No. 259-9612
  • Mfr. Part No. 1SCA022807R5100
Each
TWD9,127.00(exc. GST)
Eaton Single Phase Surge Protector, 40kA, 1.8kV, DIN Rail Mount
  • RS Stock No. 121-149
  • Mfr. Part No. 167623 SPCT2-385-1+NPE
Each
TWD5,786.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 3 channels
  • RS Stock No. 259-4015
  • Mfr. Part No. 1SDA072074R1
Each
TWD196,477.00(exc. GST)
Eaton RCBO, 32A Current Rating, 3P Poles, 100mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-296
  • Mfr. Part No. 170748 FRBMM-C32/3/01-A
Each
TWD7,960.00(exc. GST)
Siemens SENTRON Nut Keeper Kit for use with 3VA51
  • RS Stock No. 269-7090
  • Mfr. Part No. 3VA9133-0QA00
Each (In a Pack of 3)
TWD426.00(exc. GST)
Better World
Siemens 5sV3 RCCB, 25A, 2 Pole, 100mA, Type A, 230V ac
  • RS Stock No. 211-9658
  • Mfr. Part No. 5SV3412-6
Each
TWD6,361.00(exc. GST)
ABB RCBO, 40A Current Rating, 2P Poles, Type B
  • RS Stock No. 237-5053
  • Mfr. Part No. 2CSR252101R1405
Each
TWD9,696.00(exc. GST)
Eaton xE?ect - FRCmM-NA RCCB, 40A, 2 Pole, 300mA, 110/190V
  • RS Stock No. 121-167
  • Mfr. Part No. 167697 FRCMM-40/2/03-G/A-NA-110
Each
TWD9,370.00(exc. GST)
Better World
Siemens RCBO, 25A Current Rating, 2P Poles, 300mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8803
  • Mfr. Part No. 5SU1656-7KK25
Each
TWD5,524.00(exc. GST)
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