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

317 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-943
  • Mfr. Part No. 3VA5212-5EC41-2AA0
Each
TWD61,548.00(exc. GST)
Temporarily out of stock
ABB S804N MCB, 4P, 32A Curve C, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-556
  • Mfr. Part No. 2CCS894001R0324
Each
TWD25,518.00(exc. GST)
In Stock
RS PRO Auxiliary Release Circuit Trip for use with MS32 & MSB32 Motor Protection Circuit Breakers
  • RS Stock No. 121-6864
Each
TWD275.00(exc. GST)
In Stock
Siemens 3 Phase Surge Protector, 100kA, DIN Rail Mount
  • RS Stock No. 211-0181
  • Mfr. Part No. 5SD7414-1
Each
TWD53,395.00(exc. GST)
In Stock
Siemens SENTRON Cover for use with Pin Busbars
  • RS Stock No. 202-7227
  • Mfr. Part No. 5ST3750-0HG
Each (In a Pack of 10)
TWD41.90(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A 1SDA07, 3 channels
  • RS Stock No. 259-4020
  • Mfr. Part No. 1SDA072080R1
Each
TWD372,860.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 700A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-591
  • Mfr. Part No. 3VA5570-7GC46-0AA0
Each
TWD224,523.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-982
  • Mfr. Part No. 3VA6110-7JT31-2AA0
Each
TWD96,553.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact SU200 MR Circuit Breaker, 1P, 8A Curve K, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 202-895
  • Mfr. Part No. 2CDS271347R0407
Each
TWD5,610.00(exc. GST)
New product - Preorder today
Schneider Electric R9R RCCB, 40A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 654-662
  • Mfr. Part No. R9R22240
Each
TWD3,825.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New generation MCCB 4P 100A, Breaking Capacity 440 V, Fixed Mount
  • RS Stock No. 205-152
  • Mfr. Part No. C25N47E100
Each
TWD239,478.00(exc. GST)
Temporarily out of stock
Siemens 400V (Volts) Remote Switch Circuit Trip for use with Remote Control Switch
  • RS Stock No. 613-322
  • Mfr. Part No. 5TT4114-2
Each
TWD2,683.00(exc. GST)
Temporarily out of stock
Schneider Electric A9F Acti9 iC60 MCB, 1P, 32A Curve B, 500V AC, 60V DC, 230 V ac Breaking Capacity
  • RS Stock No. 335-058
  • Mfr. Part No. A9F93132
Each
TWD2,918.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-274
  • Mfr. Part No. 3VA5220-0MH31-0AA0
Each
TWD59,497.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SL6 MCB, 1+N, 20A Curve C
  • RS Stock No. 216-4781
  • Mfr. Part No. 5SL6520-7
Each
TWD2,022.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Option Plug
  • RS Stock No. 277-0965
  • Mfr. Part No. 3WA9111-0EX16
Each
TWD43,310.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-756
  • Mfr. Part No. 3VA6140-6KP31-2AA0
Each
TWD86,591.00(exc. GST)
In Stock
ABB 250V ac Push Button Push Button
  • RS Stock No. 701-8480
  • Mfr. Part No. 2CCA703150R0001 E215-16-11B
Each
TWD749.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9851
  • Mfr. Part No. 3VA1125-3GF46-0AA0
Each
TWD20,702.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3666
  • Mfr. Part No. 3VA2025-7HL42-0AA0
Each
TWD93,199.00(exc. GST)
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