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

239 of 999+
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-639
  • Mfr. Part No. 3VA6210-6JP41-0AA0
Each
TWD148,775.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SY4 MCB, 1P, 1A, Type A, 10 kA Breaking Capacity
  • RS Stock No. 202-7133
  • Mfr. Part No. 5SY4101-5
Each
TWD2,084.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A Ekip Touch LSI, 4 channels
  • RS Stock No. 259-3411
  • Mfr. Part No. 1SDA071345R1
Each
TWD229,968.00(exc. GST)
In Stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7442
  • Mfr. Part No. C10S3
Each
TWD31,877.00(exc. GST)
Temporarily out of stock
Better World
Siemens, 0AA0 MCCB 3P 25A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 211-6002
  • Mfr. Part No. 3VA1125-3ED32-0AA0
Each
TWD12,841.00(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 2kA IZMX/INX, 3 channels , Fixed
  • RS Stock No. 132-654
  • Mfr. Part No. 183630 IZMX40N3-P20F-1
Each
TWD666,529.00(exc. GST)
Temporarily out of stock
ABB Flange for use with Tmax XT
  • RS Stock No. 236-6850
  • Mfr. Part No. 1SDA068654R1
Each
TWD1,962.00(exc. GST)
In Stock
Legrand 4115 RCD, 63A, 1+N Pole, 30mA, Type AC
  • RS Stock No. 863-7751
  • Mfr. Part No. 4 115 06
Each
TWD2,407.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-752
  • Mfr. Part No. 3VA6140-6JQ41-2AA0
Each
TWD101,533.00(exc. GST)
In Stock
Schurter CBE Thermal Circuit Breaker - TA45 2 Pole 240V ac Voltage Rating Snap-In, 20A Current Rating
  • RS Stock No. 269-3825
  • Mfr. Part No. 4430.3652
Each
TWD2,063.00(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 2210 Single Pole 277, 480V Voltage Rating DIN Rail Mount, 1.5A Current Rating
  • RS Stock No. 282-8759
  • Mfr. Part No. 2210-T210-K0M1-H121-1.5A
Each
TWD1,675.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Connector Plug Socket for use with Molded-Plastic Enclosure
  • RS Stock No. 613-350
  • Mfr. Part No. 5SZ9216
Each
TWD9,262.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-4174
  • Mfr. Part No. 1SDA072289R1
Each
TWD402,693.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-659
  • Mfr. Part No. 3VA5210-7EF31-0AA0
Each
TWD65,652.00(exc. GST)
Temporarily out of stock
Schneider Electric, Vigilohm, POWERTAG, 10W, Wired
  • RS Stock No. 428-713
  • Mfr. Part No. IMDIFL12H
Each
TWD229,481.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Front Terminal for use with Tmax XT
  • RS Stock No. 237-6277
  • Mfr. Part No. 1SDA067201R1 FC CuAl 2x150 XT4 6PCS
Each
TWD6,445.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SY6 MCB, 3+N, 63A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 209-6033
  • Mfr. Part No. 5SY6663-7
Each
TWD13,430.00(exc. GST)
Temporarily out of stock
Eaton xEnergy Safety Ci Distribution Board Enclosure, 1 Way, 250 A
  • RS Stock No. 251-464
  • Mfr. Part No. 194577 CI44-S60-250/3-1XNH1
Each
TWD26,744.00(exc. GST)
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2341
  • Mfr. Part No. 2CCF800252R0001
Each
TWD822.00(exc. GST)
Temporarily out of stock
Eaton Enclosure for use with Circuit Breakers, Switch Disconnectors
  • RS Stock No. 103-800
  • Mfr. Part No. 138538 MCCB1-63/I23E-150
Each
TWD9,561.00(exc. GST)
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