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

126 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 272-0176
  • Mfr. Part No. 3VA1563-6GF42-0AA0
Each
TWD138,288.00(exc. GST)
Limited stock
Siemens Sentron 5SY6 MCB, 2P, 4A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 196-3627
  • Mfr. Part No. 5SY62047
Each
TWD2,074.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1110 Single Pole 250V Voltage Rating Panel Mount, 2A Current Rating
  • RS Stock No. 416-966
  • Mfr. Part No. 1110-F112-P1M1-2A
Each
TWD771.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB, 1P, 2A Curve D, 10 kA Breaking Capacity
  • RS Stock No. 219-9142
  • Mfr. Part No. M9F23102
Each
TWD2,617.00(exc. GST)
In Stock
Schneider Electric Acti9 A9P MCB, 1P + N, 24A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 654-243
  • Mfr. Part No. A9P44625
Each
TWD2,573.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 10A Curve D, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7037
  • Mfr. Part No. 278580 FAZ-D10/1
Each
TWD943.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 40A Curve B, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3231
  • Mfr. Part No. A9F53340
Each
TWD4,151.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 20A Curve B, 440V AC, 220 → 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3253
  • Mfr. Part No. A9F53420
Each
TWD6,035.00(exc. GST)
In Stock
Phoenix Contact CAPAROC Electronic Circuit Breaker 4A, 2 channels
  • RS Stock No. 265-8974
  • Mfr. Part No. 1115655
Each
TWD3,293.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 2A Curve C, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6882
  • Mfr. Part No. 102080 FAZ-C2/1-NA
Each
TWD1,537.00(exc. GST)
In Stock
Eaton xEffect MCB, 2P, 40A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3617
  • Mfr. Part No. 278787 FAZ-D40/2
Each
TWD2,737.00(exc. GST)
Temporarily out of stock
ABB MCCB 3P 100A, Breaking Capacity 65 kA
  • RS Stock No. 192-0839
  • Mfr. Part No. 1SDA067057R1
Each
TWD26,045.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SY4 MCB, 1P, 8A, Type A, 5 kA Breaking Capacity
  • RS Stock No. 213-2591
  • Mfr. Part No. 5SY4108-5
Each
TWD1,801.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 1P, 16A Curve D, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1256
  • Mfr. Part No. 5SY4116-8
Each
TWD2,404.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60BP MCB, 3P, 35A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2460
  • Mfr. Part No. M9F43335
Each
TWD11,109.00(exc. GST)
In Stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 63A Curve D, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-315
  • Mfr. Part No. SE10D363
Each
TWD3,795.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 2P, 40A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3167
  • Mfr. Part No. 5SY4240-7
Each
TWD2,690.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 MCB, 3P, 16A Curve C, 10 kA Breaking Capacity
  • RS Stock No. 219-9132
  • Mfr. Part No. M9F22316
Each
TWD7,630.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 2P, 5A Curve D, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2394
  • Mfr. Part No. M9F23205
Each
TWD3,038.00(exc. GST)
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 2P, 10A Curve B, 440V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2339
  • Mfr. Part No. M9F21210
Each
TWD2,642.00(exc. GST)
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