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

100 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-632
  • Mfr. Part No. 3VA5280-6EF31-2AA0
Each
TWD45,977.00(exc. GST)
Temporarily out of stock
Legrand DX3 RCD, 10A, 1+N Pole, 30mA
  • RS Stock No. 731-9875
  • Mfr. Part No. 4 108 00
Each
TWD15,449.00(exc. GST)
Temporarily out of stock
Eaton xPole - PXL PXL MCB, 4P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 255-759
  • Mfr. Part No. 236619 PXL-C32/4
Each
TWD7,893.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3817
  • Mfr. Part No. 3VA5110-5EC31-0AA0
Each
TWD26,208.00(exc. GST)
Temporarily out of stock
Phoenix Contact Three Phase Surge Arrester, 80A, 335V ac, DIN Rail Mount
  • RS Stock No. 286-1117
  • Mfr. Part No. 2800644
Each
TWD26,026.00(exc. GST)
Temporarily out of stock
ABB 20 → 24V (Volts) Shunt Trip Shunt trip
  • RS Stock No. 259-5989
  • Mfr. Part No. 1SAM201910R1001
Each
TWD2,646.00(exc. GST)
In Stock
nVent ERIFLEX ERIFLEX Busbar
  • RS Stock No. 277-6176
  • Mfr. Part No. 568660
Each
TWD1,456.00(exc. GST)
In Stock
Better World
Siemens SENTRON Cover for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9402
  • Mfr. Part No. 3VA9481-0WF30
Each
TWD2,257.00(exc. GST)
In Stock
ETA ESX10 Electronic Circuit breaker 6A 24V ESX10-T, 1 channels , Plug-In Mounting
  • RS Stock No. 210-2147
  • Mfr. Part No. ESX10-TB-124-DC24V-6A-E
Each
TWD3,213.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 70A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 147-539
  • Mfr. Part No. 3VA5170-4EF31-0AA0
Each
TWD18,629.00(exc. GST)
Temporarily out of stock
Eaton NZM Electronic Circuit Breaker 80A , 4 channels , Fixed
  • RS Stock No. 121-916
  • Mfr. Part No. 153388 NZMN2-4-AF80-BT-NA
Each
TWD52,480.00(exc. GST)
In Stock
Phoenix Contact Surge Protector, 250V ac, DIN Rail Mount
  • RS Stock No. 801-6211
  • Mfr. Part No. 2950048
Each
TWD2,245.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti 9 3 Phase Distribution Board, 24 Way
  • RS Stock No. 125-1415
  • Mfr. Part No. SEA9BN24PEV
Each
TWD34,204.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9327
  • Mfr. Part No. 3VA1140-4GE46-0AA0
Each
TWD20,359.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9718
  • Mfr. Part No. 3VA1112-4FF42-0AA0
Each
TWD38,111.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Plug In Unit for use with XT2
  • RS Stock No. 236-6641
  • Mfr. Part No. 1SDA068197R1 XT4 P FP HR
Each
TWD11,267.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT NSX MCCB 3P 25A, Fixed Mount
  • RS Stock No. 254-6273
  • Mfr. Part No. C103TM025
Each
TWD8,672.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Assembly Kit for use with 3VA2 100/160/250
  • RS Stock No. 210-3519
  • Mfr. Part No. 3VA9203-0QA00
Each
TWD1,480.00(exc. GST)
In Stock
Better World
Schneider Electric 220 → 240V ac Undervoltage Release Circuit Trip for use with C120 Series, C60 Series, ID
  • RS Stock No. 776-2926
  • Mfr. Part No. A9N26960
Each
TWD4,084.00(exc. GST)
Temporarily out of stock
ABB 4 Way Steel Consumer Unit, 100A, IP30 Housemaster
  • RS Stock No. 453-980
  • Mfr. Part No. 1SKB106142C6001 HSRC 04C
Each
TWD8,542.00(exc. GST)
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