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

83 of 999+
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 4A Curve B, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-3382
  • Mfr. Part No. A9F73204
Each
TWD4,245.00(exc. GST)
Temporarily out of stock
Eaton xEffect RCCB, 80A, 4 Pole, 30mA, Type B, 240V ac
  • RS Stock No. 242-955
  • Mfr. Part No. 187806 FRCMM-80/4/003-B
Each
TWD63,680.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 50A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3316
  • Mfr. Part No. A9F54150
Each
TWD1,058.00(exc. GST)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 400mA 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-097
  • Mfr. Part No. 3RV2311-0EC10
Each
TWD3,562.00(exc. GST)
In Stock
Legrand DX3 Circuit Breaker, 2P, 3A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 266-1328
  • Mfr. Part No. 408010
Each
TWD6,641.00(exc. GST)
In Stock
Schneider Electric Multi9 M9F1 MCB, 2P, 1A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-123
  • Mfr. Part No. M9F11201
Each
TWD3,996.00(exc. GST)
In Stock
Better World
Schneider Electric, PowerLogic, 63A, Energy Sensor, 1VA, Wired
  • RS Stock No. 256-4045
  • Mfr. Part No. A9MEM1561
Each
TWD7,120.00(exc. GST)
In Stock
Better World
Schneider Electric Surge Suppressor Unit, 127 → 240V ac
  • RS Stock No. 210-9822
  • Mfr. Part No. LA4FRCP
Each
TWD3,308.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 13A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 246-116
  • Mfr. Part No. 132703 FAZ-B13/2-NA
Each
TWD3,985.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with In Line Fuse Switch Disconnectors
  • RS Stock No. 629-298
  • Mfr. Part No. 8GK4752-5KK25
Each
TWD9,554.00(exc. GST)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IUGN6 Single Pole Panel Mount, 20A Current Rating
  • RS Stock No. 275-0287
  • Mfr. Part No. IUGN6-1-63F-20.0
Each
TWD2,452.00(exc. GST)
Temporarily out of stock
Eaton RCCB, 40A, 2 Pole, 100mA, Type G, 230V ac
  • RS Stock No. 227-0716
  • Mfr. Part No. 264995 PFGM-40/2/01-G
Each
TWD11,386.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60L MCB, 3P, 20A Curve C
  • RS Stock No. 247-1950
  • Mfr. Part No. A9F94320
Each
TWD9,444.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7293
  • Mfr. Part No. 1SDA067468R1 TMD 20-300 XT4 4p
Each
TWD21,905.00(exc. GST)
In Stock
Eaton RC Suppressor Circuit for use with DILE
  • RS Stock No. 241-117
  • Mfr. Part No. 044264 RCDILE48
Each
TWD628.00(exc. GST)
Temporarily out of stock
Siemens 3 Phase Surge Protector, 50kA, DIN Rail Mount
  • RS Stock No. 211-0183
  • Mfr. Part No. 5SD7414-3
Each
TWD28,047.00(exc. GST)
Currently unavailable
Schneider Electric RCBO, 63A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 264-1039
  • Mfr. Part No. A9D65263
Each
TWD13,637.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-232
  • Mfr. Part No. 3VA6210-6KP41-2AA0
Each
TWD157,089.00(exc. GST)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 140A NZM, 3 channels , Fixed
  • RS Stock No. 120-720
  • Mfr. Part No. 169026 NZML2-ME140-SVE
Each
TWD71,642.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SY6 MCB, 3P, 6A Curve C, 6 kA Breaking Capacity
  • RS Stock No. 203-2306
  • Mfr. Part No. 5SY6306-7
Each
TWD3,195.00(exc. GST)
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