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

1729 of 999+
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA2, 3 channels
  • RS Stock No. 156-679
  • Mfr. Part No. 3VA2325-0MQ32-0AA0
Each
TWD144,023.00(exc. GST)
Eaton xPole - PXL PXL MCB, 1P, 40A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 255-737
  • Mfr. Part No. 236195 PXL-D40/1N
Each
TWD3,038.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 35A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-591
  • Mfr. Part No. 3VA5135-5ED31-1AA0
Each
TWD14,731.00(exc. GST)
Siemens SENTRON 5SY7 MCB, 2P, 40A Curve D, 230V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 610-444
  • Mfr. Part No. 5SY7540-8
Each
TWD4,979.00(exc. GST)
ABB RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 183-3701
  • Mfr. Part No. 2CSR245041R1164
Each
TWD5,863.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LSI, 4 channels
  • RS Stock No. 259-4503
  • Mfr. Part No. 1SDA072725R1
Each
TWD174,894.00(exc. GST)
Better World
Siemens, 0AA0 MCCB 4P 40A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 211-6010
  • Mfr. Part No. 3VA1140-4GF46-0AA0
Each
TWD22,387.00(exc. GST)
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-345
  • Mfr. Part No. 3VA6560-5JT32-0AA0
Each
TWD195,404.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 20A Curve C, 400V AC
  • RS Stock No. 239-9970
  • Mfr. Part No. A9P22320
Each
TWD3,736.00(exc. GST)
Better World
Schneider Electric Busbar Tap-Off Unit, Canalis KS Series
  • RS Stock No. 211-0492
  • Mfr. Part No. KSB100SV4
Each
TWD16,785.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 25 kA
  • RS Stock No. 209-6856
  • Mfr. Part No. 3VA1180-3ED32-0AA0
Each
TWD14,033.00(exc. GST)
Eaton AFDD, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Eaton Moeller Range
  • RS Stock No. 246-608
  • Mfr. Part No. 187231 AFDD-32/2/B/003-A
Each
TWD7,931.00(exc. GST)
Siemens ALPHA Assembly Kit for use with Terminal Block
  • RS Stock No. 629-177
  • Mfr. Part No. 8GK4110-8KK22
Each
TWD13,911.00(exc. GST)
Phoenix Contact CLIPLINE Thermal Circuit Breaker - UT 6-TMC Single Pole 250V Voltage Rating DIN Rail Mount, 10A
  • RS Stock No. 684-3608
  • Mfr. Part No. 0916610
Each
TWD555.00(exc. GST)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7236
  • Mfr. Part No. 1SDA067290R1 MA 20 Im=120...280 XT2 3p
Each
TWD7,117.00(exc. GST)
ABB RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A
  • RS Stock No. 231-9949
  • Mfr. Part No. 2CSR255170R1324 DSH201 C32 A30
1 Box of 1
TWD3,157.00(exc. GST)
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 1A Current Rating
  • RS Stock No. 217-6366
  • Mfr. Part No. 2800869
Each
TWD3,084.00(exc. GST)
Murrelektronik Limited Electronic Circuit Breaker
  • RS Stock No. 123-6688
  • Mfr. Part No. 9000-41034-0100400
Each
TWD9,463.00(exc. GST)
Siemens SENTRON 5SY4 MCB, 2P, 2A, Type A, 230V AC, 60V DC, 35 kA Breaking Capacity
  • RS Stock No. 610-502
  • Mfr. Part No. 5SY4502-5
Each
TWD3,214.00(exc. GST)
Hager RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type F
  • RS Stock No. 602-089
  • Mfr. Part No. ADF823F
Each
TWD13,182.00(exc. GST)
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