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

1748 of 999+
Better World
ABB, Tmax XT MCCB 3P 63A, Fixed Mount
  • RS Stock No. 236-6517
  • Mfr. Part No. 1SDA067978R1 XT2V 160 Ekip I 63A FF
Each
TWD38,600.00(exc. GST)
Siemens SENTRON Cover Frame for use with 3VA51
  • RS Stock No. 162-024
  • Mfr. Part No. 3VA9033-0SB10
Each
TWD1,276.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 25A 3VA2, 4 channels
  • RS Stock No. 157-255
  • Mfr. Part No. 3VA2125-5HK42-0AA0
Each
TWD36,232.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3663
  • Mfr. Part No. 1SDA071636R1
Each
TWD372,328.00(exc. GST)
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6155
  • Mfr. Part No. 1SDA066907R1 FC Cu XT1 6PCS
Each
TWD1,364.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 60A, Breaking Capacity 3 kA
  • RS Stock No. 245-469
  • Mfr. Part No. 3VA6160-0KQ31-0AA0
Each
TWD105,748.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 500A, Breaking Capacity 4 kA, Withdrawable
  • RS Stock No. 231-394
  • Mfr. Part No. 113511 NZMC3-A500-AVE
Each
TWD110,652.00(exc. GST)
ABB S401M MCB, 1P, 4A Curve B, 12V AC, 10 kA Breaking Capacity
  • RS Stock No. 140-727
  • Mfr. Part No. 2CCS571001R0045
Each
TWD3,468.00(exc. GST)
Better World
Siemens RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 151-1202
  • Mfr. Part No. 5SU1354-7KK25
Each
TWD6,112.00(exc. GST)
Eaton xPole - PXL PXL MCB, 1P, 8A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 254-246
  • Mfr. Part No. 236162 PXL-C8/1N
Each
TWD2,513.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-988
  • Mfr. Part No. 3VA6110-7KQ41-0AA0
Each
TWD111,878.00(exc. GST)
Better World
Schneider Electric Masterpact Chassis for use with Masterpact MTZ2 20-25 H3, Masterpact MTZ2 25 H1, Masterpact MTZ2 25
  • RS Stock No. 248-3824
  • Mfr. Part No. LV848394
Each
TWD179,584.00(exc. GST)
Siemens, SENTRON MCCB 4P 1.25kA, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4886
  • Mfr. Part No. 3VA2612-6HL42-0AA0
Each
TWD731,570.00(exc. GST)
WAGO Electronic Circuit Breaker 10A 24V 787, 8 channels , DIN Rail
  • RS Stock No. 279-4108
  • Mfr. Part No. 787-1668
Each
TWD11,716.00(exc. GST)
Better World
Siemens SENTRON 5SL60 MCB, 1P + N, 2A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 328-284
  • Mfr. Part No. 5SL6002-7
Each
TWD2,908.00(exc. GST)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 25A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 335-293
  • Mfr. Part No. SE10C325
Each
TWD4,574.00(exc. GST)
ABB Busbar for use with Miniature Circuit Breakers
  • RS Stock No. 250-4777
  • Mfr. Part No. 2CDL701302R1500
1 Box of 10
TWD3,415.00(exc. GST)
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-239
  • Mfr. Part No. 3VA5340-7EF41-0AA0
Each
TWD122,606.00(exc. GST)
Schneider Electric Resi9 Two Phase Distribution Board, 90 A
  • RS Stock No. 276-8953
  • Mfr. Part No. R9H13404
Each
TWD4,038.00(exc. GST)
ABB PBFC 3, 3+N Phase Busbar
  • RS Stock No. 200-514
  • Mfr. Part No. 1STQ007416A0000
Each
TWD128,453.00(exc. GST)
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