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

24 of 999+
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 16A Curve C, 400V AC
  • RS Stock No. 239-9969
  • Mfr. Part No. A9P22316
Each
$282.11(exc. GST)
Siemens, SENTRON MCCB 4P 200A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 256-538
  • Mfr. Part No. 3VA5320-7GC41-0AA0
Each
$11,239.09(exc. GST)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 40A Curve C, 250V DC, 20 kA Breaking Capacity
  • RS Stock No. 776-3187
  • Mfr. Part No. A9N61517
Each
$91.07(exc. GST)
Eaton, xEnergy MCCB 1P 250A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 537-5551
  • Mfr. Part No. 259094 NZMN2-A250
Each
$2,192.85(exc. GST)
Eaton Handle, Lockable for use with N(S)2(-4) Series, NZM2(-4) Switch, PN2(-4) Series
  • RS Stock No. 537-5719
  • Mfr. Part No. 260174 NZM2-XTVDV
Each
$348.98(exc. GST)
Eaton Electronic Circuit Breaker 24V , DIN Rail
  • RS Stock No. 261-399
  • Mfr. Part No. PXS24ACC0000 PXS24-PCH
Each
$13.12(exc. GST)
Schneider Electric RCBO, 16A Current Rating, 1P Poles, Type B, Acti9 Range
  • RS Stock No. 245-142
  • Mfr. Part No. A9D56816
Each
$397.73(exc. GST)
Schneider Electric Acti 9 3 Phase Distribution Board, 48 Way, 250 A
  • RS Stock No. 230-6842
  • Mfr. Part No. SAU25048183
Each
$679.25(exc. GST)
Better World
Schneider Electric Acti 9 Cover for use with Linergy FH Horizontal Comb Busbar
  • RS Stock No. 776-2831
  • Mfr. Part No. A9XPT920
Each
$33.34(exc. GST)
Better World
Schneider Electric Compact Nsx, Easypact Cvs 2 x Long 3/4" Rear Socket Connection for use with NSX100-250
  • RS Stock No. 221-1154
  • Mfr. Part No. LV429236
Each
$126.38(exc. GST)
Eaton xEffect MCB, 1P, 16A Curve C, 240 → 415V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6905
  • Mfr. Part No. 102090 FAZ-C16/1-NA
Each
$80.61(exc. GST)
Schneider Electric Acti9 3 Phase Distribution Board, 12 Way, 250 A
  • RS Stock No. 339-823
  • Mfr. Part No. SEA9BPN12
Each
$1,291.76(exc. GST)
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6342
  • Mfr. Part No. C16F3
Each
$896.89(exc. GST)
Phoenix Contact Surge Protector, 40kA, 1000V dc
  • RS Stock No. 269-7885
  • Mfr. Part No. 1056071
Each
$977.57(exc. GST)
Hager RCD, 25A, 2 Pole, 30mA
  • RS Stock No. 144-4843
  • Mfr. Part No. BDC225F
Each
$458.98(exc. GST)
Schneider Electric Resi9 R9E MCB, 1P, 16A, 230V AC
  • RS Stock No. 357-153
  • Mfr. Part No. R9ETC616
Each
$650.65(exc. GST)
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 654-746
  • Mfr. Part No. A9DH3632
Each
$604.51(exc. GST)
Socomec 1, 3 Phase Surge Arrester, 20kA, 30V (Volts), DIN Rail Mount
  • RS Stock No. 252-3598
  • Mfr. Part No. 49863020
Each
$243.60(exc. GST)
Schurter Thermal Circuit Breaker - TA45 2 Pole 60 V dc, 240V ac Voltage Rating Panel Mount, 6A Current Rating
  • RS Stock No. 868-9106
  • Mfr. Part No. 4430.0990
Each
$95.50(exc. GST)
Phoenix Contact 3 Phase Surge Protector, 65kA, 1200V (Volts), DIN Rail Mount
  • RS Stock No. 131-483
  • Mfr. Part No. 2910359
Each
$820.12(exc. GST)
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