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

253 of 999+
Temporarily out of stock
Better World
Siemens RCBO, 100A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type D, Sentron Range
  • RS Stock No. 243-6225
  • Mfr. Part No. 5SU1374-8DK81
Each
TWD185,877.00(exc. GST)
Temporarily out of stock
Schneider Electric Linergy Busbar Cover for use with Busbar Support
  • RS Stock No. 590-004
  • Mfr. Part No. LA9ZX01131
1 Pack of 10
TWD6,892.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 3.2kA 1SDA07, 3 channels
  • RS Stock No. 259-4356
  • Mfr. Part No. 1SDA072524R1
Each
TWD828,520.00(exc. GST)
Unavailable
Schneider Electric Kaedra Distribution Board, 8 Way, 63 A
  • RS Stock No. 498-3375
  • Mfr. Part No. 13959
Each
TWD2,859.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Undervoltage Release for use with Circuit Breaker
  • RS Stock No. 231-9366
  • Mfr. Part No. 1SDA104958R1 YU-C XT5-XT6 F/P 220.240Va
Each
TWD6,140.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3673
  • Mfr. Part No. 1SDA071647R1
Each
TWD516,922.00(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1kA , DIN Rail
  • RS Stock No. 132-688
  • Mfr. Part No. 183727 IZMX40B3-V10W-1
Each
TWD235,895.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-7993
  • Mfr. Part No. C25S3D
Each
TWD46,101.00(exc. GST)
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 630A, Fixed Mount
  • RS Stock No. 232-0127
  • Mfr. Part No. 1SDA060202R1 T6N630 FF TMA 630A
Each
TWD69,934.00(exc. GST)
In Stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 874-4159
  • Mfr. Part No. 3VA1110-4EF36-0AA0
Each
TWD19,340.00(exc. GST)
In Stock
Better World
Schneider Electric Busbar
  • RS Stock No. 219-9030
  • Mfr. Part No. AK5JB146
Each
TWD13,287.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-7964
  • Mfr. Part No. C25R35E250
Each
TWD149,925.00(exc. GST)
In Stock
Better World
Siemens 5SV3 RCCB, 40A, 4 Pole, 300mA, Type A
  • RS Stock No. 124-7742
  • Mfr. Part No. 5SV3644-6KK12
Each
TWD5,780.00(exc. GST)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 30mA, Type A, 110V
  • RS Stock No. 127-429
  • Mfr. Part No. 180610 FRCMM-80/2/003-A-110
Each
TWD14,731.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with Busbar Adaptable Unit
  • RS Stock No. 629-329
  • Mfr. Part No. 8GK4801-3KK13
Each
TWD3,697.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9729
  • Mfr. Part No. 3VA1112-5FD46-0AA0
Each
TWD40,688.00(exc. GST)
In Stock
Schneider Electric, Acti9, 32A, Energy Sensor, 3.5VA, Wireless
  • RS Stock No. 276-8717
  • Mfr. Part No. A9C15907
Each
TWD7,534.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 55 kA
  • RS Stock No. 209-6927
  • Mfr. Part No. 3VA2140-5MN32-0AA0
Each
TWD27,639.00(exc. GST)
In Stock
Osram Surge Protector, 15A, 15kV, Screw Mount Mount
  • RS Stock No. 251-5283
  • Mfr. Part No. SPD-15-275-G2
Each
TWD512.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Key Lock for use with Tmax XT
  • RS Stock No. 237-6099
  • Mfr. Part No. 1SDA066593R1 KLC XT1
Each
TWD3,729.00(exc. GST)
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