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

23559 Products showing for Circuit Breakers

34 of 999+
RS PRO Industrial Surge Protector, 30kA, 300 V, DIN Rail Mount
  • RS Stock No. 101-753
Each
$150.47(exc. GST)
Schneider Electric Square D Qovs MCB, 1P, 10A, Type AC
  • RS Stock No. 230-6824
  • Mfr. Part No. QO110B10RCBO30F
Each
$1,287.52(exc. GST)
Schneider Electric RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 339-384
  • Mfr. Part No. SEE106C03
Each
$340.00(exc. GST)
Schneider Electric A9R RCCB, 63A, 2 Pole, 240V
  • RS Stock No. 245-151
  • Mfr. Part No. A9R61263
Each
$804.17(exc. GST)
Better World
Schneider Electric 250V ac Push Button Push Button
  • RS Stock No. 790-9175
  • Mfr. Part No. A9E18030
Each
$120.21(exc. GST)
Schneider Electric ComPact Auxiliary Contact for use with NS630b to NS3200
  • RS Stock No. 275-6649
  • Mfr. Part No. 33004
Each
$150.25(exc. GST)
Schneider Electric, ComPacT New Generation MCCB 3P 15A, Breaking Capacity 100 kA, Screw Mount
  • RS Stock No. 207-253
  • Mfr. Part No. BJL36015LU
Each
$3,229.89(exc. GST)
Schneider Electric, ComPacT New Generation MCCB 3P 150A, Fixed Mount
  • RS Stock No. 260-7779
  • Mfr. Part No. C16H3MA150
Each
$2,645.46(exc. GST)
Schneider Electric IKQ RCD, 25A, 2 Pole, 30mA, 230V ac
  • RS Stock No. 335-406
  • Mfr. Part No. SED25032
Each
$392.38(exc. GST)
ABB SN201 MCB, 1+N, 16A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 191-9457
  • Mfr. Part No. 2CSS245102R0164 SN201 L C16-L
Each
$30.49(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 3 channels
  • RS Stock No. 157-154
  • Mfr. Part No. 3VA2216-7HN32-0AA0
Each
$4,577.01(exc. GST)
Schneider Electric 1+N Phase Surge Arrester, 20kA, 1.3kV, DIN Rail Mount
  • RS Stock No. 654-811
  • Mfr. Part No. EZ9L33620KIT
Each
$241.66(exc. GST)
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-7931
  • Mfr. Part No. C25N3
Each
$2,531.93(exc. GST)
Better World
Schneider Electric RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9244
  • Mfr. Part No. A9D19210
Each
$697.25(exc. GST)
Better World
Schneider Electric Zelio Relay Busbar
  • RS Stock No. 179-9446
  • Mfr. Part No. RSLZ2
Each
$3.15(exc. GST)
Better World
Schneider Electric Acti 9 A9F9 MCB, 4P, 16A, Type Z, 400V AC, 250V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 211-2497
  • Mfr. Part No. A9F92416
Each
$512.92(exc. GST)
Better World
Schneider Electric, PowerPact MCCB 3P 15A, Breaking Capacity 14 kA, Fixed Mount
  • RS Stock No. 219-8304
  • Mfr. Part No. BDF36015
Each
$1,062.66(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4133
  • Mfr. Part No. 3VA2116-8JP42-0AA0
Each
$6,148.10(exc. GST)
ABB PS1 1 Phase Busbar, 400V ac, 17.5mm Pitch
  • RS Stock No. 489-6568
  • Mfr. Part No. 2CDL210001R1060 - PS1/60
Each
$61.51(exc. GST)
Eaton Eaton Moeller 3 Phase Busbar, 690V
  • RS Stock No. 272-2296
  • Mfr. Part No. 220224 B3.1/3-PKZ4
Each
$92.60(exc. GST)
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