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

23782 Products showing for Circuit Breakers

29 of 999+
Better World
ABB System Pro M Compact S200M MCB, 2P, 13A Curve B, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 132-100
  • Mfr. Part No. 2CDS272001R0135 S202M-B13
Each
$131.68(exc. GST)
TE Connectivity Thermal Circuit Breaker - W23 Single Pole 50 V dc, 250V ac Voltage Rating, 5A Current Rating
  • RS Stock No. 782-0886
  • Mfr. Part No. W23-X1A1G-5
Each
$69.34(exc. GST)
nVent ERIFLEX ERIFLEX Busbar, 25mm Pitch
  • RS Stock No. 277-6093
  • Mfr. Part No. 550210
Each (In a Pack of 4)
$147.225(exc. GST)
Schurter Thermal Magnetic Circuit Breaker - Single Pole 240 V ac, 32V dc Voltage Rating, 15A Current Rating
  • RS Stock No. 539-3773
  • Mfr. Part No. 4404.0010
Each
$8.00(exc. GST)
ABB High Performance S800S MCB, 2P, 80A Curve C, 400V AC, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 435-510
  • Mfr. Part No. 2CCG001229R0001
Each
$563.10(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3P, 6A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 746-7586
  • Mfr. Part No. 2CDS253001R0065 S203-B6
Each
$131.57(exc. GST)
RS PRO Industrial Surge Protector, 5kA, 800 V, DIN Rail Mount
  • RS Stock No. 101-786
Each
$114.63(exc. GST)
Better World
Schneider Electric Compact Nsx, Easypact Cvs Cable Connector for use with 2 Cables 50 mm2 → 120 mm2
  • RS Stock No. 221-1146
  • Mfr. Part No. LV429218
Each
$414.56(exc. GST)
Schneider Electric Single Phase Surge Arrester, 65kA, 350V (Volts), Clip-On Mount
  • RS Stock No. 130-970
  • Mfr. Part No. A9L65301
Each
$3,060.50(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 3P, 32A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 514-0248
  • Mfr. Part No. 2CDS253001R0537 S203-K32
Each
$246.65(exc. GST)
Rockwell Automation FB100 Busbar, 1000V
  • RS Stock No. 281-5990
  • Mfr. Part No. FB100608Q1
Each (In a Pack of 2)
$187.525(exc. GST)
Better World
Schneider Electric Cover for use with Compact Nsx, Easypact Cvs
  • RS Stock No. 221-1265
  • Mfr. Part No. LV432593
Each
$224.07(exc. GST)
Better World
Siemens, SENTRON Circuit breaker 3P 125A, DIN Rail Mount
  • RS Stock No. 224-7804
  • Mfr. Part No. 3VA1112-5ED36-0AA0
Each
$1,708.17(exc. GST)
Schneider Electric Acti 9 Spacer for use with C120/C60 Miniature Circuit Breakers, Clario/Librio/ProDis Circuit
  • RS Stock No. 776-2819
  • Mfr. Part No. A9N27062
Each
$5.51(exc. GST)
Schneider Electric 1+N Phase Surge Arrester, 20kA, 1.4kV, DIN Rail Mount
  • RS Stock No. 654-748
  • Mfr. Part No. A9L20500
Each
$837.84(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 4 channels
  • RS Stock No. 157-090
  • Mfr. Part No. 3VA2116-5HM42-0AA0
Each
$4,344.68(exc. GST)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 160 DC
  • RS Stock No. 260-7718
  • Mfr. Part No. C163TM160D
Each
$961.40(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 1P, 2A Curve K, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 514-0096
  • Mfr. Part No. 2CDS251001R0277 S201-K2
Each
$73.15(exc. GST)
Siemens SENTRON Communication Module for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 266-706
  • Mfr. Part No. 3VW9011-0AT14
Each
$3,587.94(exc. GST)
Siemens SENTRON Terminal for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 266-568
  • Mfr. Part No. 3VW9011-0AL74
Each
$959.78(exc. GST)
1
29
1190
Results per page

Related links