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

23 of 999+
Eaton IZMX/INX Electronic Circuit Breaker 4kA IZMX, 3 channels
  • RS Stock No. 132-835
  • Mfr. Part No. 183594 IZMX40B3-P40W-1
Each
$70,792.87(exc. GST)
Better World
Schneider Electric Acti 9 C120N MCB, 4P, 63A Curve C, 440V AC, 500V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3070
  • Mfr. Part No. A9N18371
Each
$524.93(exc. GST)
nVent ERICO Surge Protector, 50kA, 1500V ac, DIN Rail Mount
  • RS Stock No. 277-6231
  • Mfr. Part No. DT230040R
Each
$699.57(exc. GST)
Better World
Schneider Electric Acti 9 iC60L MCB, 1P, 20A Curve C, 15 kA Breaking Capacity
  • RS Stock No. 219-9267
  • Mfr. Part No. A9F94120
Each
$194.73(exc. GST)
Schneider Electric Acti 9 C120N MCB, 1P, 125A Curve C, 415V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 230-6681
  • Mfr. Part No. A9N18359
Each
$122.15(exc. GST)
Acti9 Acti9 iDT40 MCB Mini Circuit Breaker, 1P + N, 25A, Type A-SI, 230V AC
  • RS Stock No. 585-484
  • Mfr. Part No. A9Y6E625
Each
$1,270.07(exc. GST)
Schneider Electric Easypact Cvs100...250, Nsx100...250 Dc DIN Rail Adapter for use with Compact Nsx 100/160/250
  • RS Stock No. 221-1184
  • Mfr. Part No. LV429305
Each
$306.81(exc. GST)
Schneider Electric R9R RCCB, 40A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 654-662
  • Mfr. Part No. R9R22240
Each
$236.68(exc. GST)
Better World
Schneider Electric Acti 9 A9F9 MCB, 1P, 10A, Type Z, 230V AC, 72V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 211-2484
  • Mfr. Part No. A9F92110
Each
$230.30(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 300A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 231-304
  • Mfr. Part No. 107519 NZMC2-A300
Each
$3,701.39(exc. GST)
Schneider Electric Acti9 3 Phase Distribution Board, 4 Way, 250 A
  • RS Stock No. 244-936
  • Mfr. Part No. SE12B250
Each
$786.79(exc. GST)
Schneider Electric Acti9 iC40N MCB, 1P + N, 20A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 654-726
  • Mfr. Part No. A9P54620
Each
$135.13(exc. GST)
Schneider Electric Thermal Circuit Breaker - GB2 1P + N Pole 250V ac Voltage Rating DIN Rail Mount, 6A Current Rating
  • RS Stock No. 323-9043
  • Mfr. Part No. GB2CD12
Each
$126.19(exc. GST)
Eaton IZMX/INX Electronic Circuit Breaker 1.6kA IZMX/INX, 4 channels , Fixed
  • RS Stock No. 127-529
  • Mfr. Part No. 183461 IZMX16B4-P16W-1
Each
$30,256.30(exc. GST)
Schneider Electric Acti 9 3 Phase Distribution Board, 72 Way, 250 A
  • RS Stock No. 230-6844
  • Mfr. Part No. SAU25072183
Each
$704.94(exc. GST)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 63A Curve C, 500V DC, 20 kA Breaking Capacity
  • RS Stock No. 776-3222
  • Mfr. Part No. A9N61539
Each
$178.74(exc. GST)
Better World
Schneider Electric Compact NSX, Easy Pact CVS, FuPact INFB Crimp Lug for use with For copper cable 300 mm2
  • RS Stock No. 219-9402
  • Mfr. Part No. LV432503
Each
$762.87(exc. GST)
Eaton Eaton Moeller Series NZM Adapter for use with N3, NZM3, PN3
  • RS Stock No. 235-217
  • Mfr. Part No. 107206 NZM3-XAD630
Each
$677.05(exc. GST)
Schneider Electric Acti9 3 Phase Distribution Board, 16 Way, 250 A
  • RS Stock No. 244-940
  • Mfr. Part No. SE48B250
Each
$1,632.61(exc. GST)
Schneider Electric Acti9 Active iDT40 AFDD, 25A, 1+N Pole
  • RS Stock No. 238-3485
  • Mfr. Part No. A9TYAE625
Each
$1,807.53(exc. GST)
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