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

23542 Products showing for Circuit Breakers

119 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip G Touch LSIG, 4 channels
  • RS Stock No. 259-3490
  • Mfr. Part No. 1SDA071457R1
Each
$20,279.41(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 400A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 432-923
  • Mfr. Part No. NLLL36400U53X
Each
$34,797.88(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.6kA , Fixed
  • RS Stock No. 127-532
  • Mfr. Part No. 183463 IZMX16N3-P16F-1
Each
$25,017.95(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Touch LI, 4 channels
  • RS Stock No. 259-3577
  • Mfr. Part No. 1SDA071554R1
Each
$14,013.03(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Fixed
  • RS Stock No. 122-361
  • Mfr. Part No. LV510501
Each
$288.94(exc. GST)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T12 Single Pole 240V ac Voltage Rating, 10A Current Rating
  • RS Stock No. 173-9836
  • Mfr. Part No. 4410.0106
Each (In a Box of 20)
$46.576(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Touch LSIG, 4 channels
  • RS Stock No. 259-3499
  • Mfr. Part No. 1SDA071466R1
Each
$15,037.36(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3165
  • Mfr. Part No. 1SDA071027R1
Each
$23,305.47(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 3 channels
  • RS Stock No. 259-4170
  • Mfr. Part No. 1SDA072285R1
Each
$13,232.46(exc. GST)
In Stock
Better World
Siemens Sentron 5SY7 MCB, 1P, 1A Curve C, 230V AC, 15 kA Breaking Capacity
  • RS Stock No. 622-0143
  • Mfr. Part No. 5SY7101-7
Each
$56.92(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2.5kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-3764
  • Mfr. Part No. 1SDA071758R1
Each
$45,904.71(exc. GST)
Temporarily out of stock
Eaton Circuit Breaker - NZM..-ME..NA 3 Pole 690V ac Voltage Rating, 140A Current Rating
  • RS Stock No. 250-9704
  • Mfr. Part No. 118965 NZMN2-ME140-NA
Each
$4,043.26(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller NZM Undervoltage Release for use with PXR20(25) NZM2(-4), PXR20(25) NZM3(-4)
  • RS Stock No. 242-980
  • Mfr. Part No. 189733 NZM2/3-XUHIV2A24DC
Each
$566.58(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Touch LSI, 4 channels
  • RS Stock No. 259-4698
  • Mfr. Part No. 1SDA072975R1
Each
$18,108.78(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-3754
  • Mfr. Part No. 1SDA071739R1
Each
$39,065.40(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-3836
  • Mfr. Part No. 1SDA071849R1
Each
$66,236.49(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3174
  • Mfr. Part No. 1SDA071038R1
Each
$23,900.11(exc. GST)
In Stock
Siemens ALPHA Busbar
  • RS Stock No. 226-0833
  • Mfr. Part No. 8GK9733-0KK30
Each
$167.78(exc. GST)
Temporarily out of stock
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 4 Pole 525V Voltage Rating Clip-On, 80A
  • RS Stock No. 357-468
  • Mfr. Part No. BGF46080
Each
$2,893.06(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-3194
  • Mfr. Part No. 1SDA071059R1
Each
$28,100.36(exc. GST)
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