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

23551 Products showing for Circuit Breakers

73 of 999+
Better World
ABB System Pro M Compact S200 MCB, 2P, 20A Curve B, 400V AC, 110V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7564
  • Mfr. Part No. 2CDS252001R0205 S202-B20
Each
$107.71(exc. GST)
Schneider Electric, ComPacT New generation MCCB 4P 250A, Breaking Capacity 440 V, Fixed Mount
  • RS Stock No. 205-341
  • Mfr. Part No. C25B47E250
Each
$15,624.51(exc. GST)
Schneider Electric, ComPacT MCCB 3P 1kA, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 346-737
  • Mfr. Part No. C100L350FM
Each
$33,468.45(exc. GST)
ABB 220 → 240V ac Undervoltage Release Circuit Trip for use with XT2, XT3, XT4 Circuit Breakers
  • RS Stock No. 225-5869
  • Mfr. Part No. 1SDA066406R1 UVR-C XT2-XT4 W 220-240VAC
Each
$359.06(exc. GST)
Rittal SZ Busbar
  • RS Stock No. 230-4854
  • Mfr. Part No. 2364000
Each
$292.60(exc. GST)
ABB Emax2 Electronic Circuit Breaker 5kA 1SDA07, 3 channels
  • RS Stock No. 259-4433
  • Mfr. Part No. 1SDA072624R1
Each
$79,654.84(exc. GST)
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 4P 40A, Fixed Mount
  • RS Stock No. 221-1065
  • Mfr. Part No. LV433850
Each
$5,181.91(exc. GST)
Better World
Siemens SIRIUS Electronic Circuit Breaker 5A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 159-652
  • Mfr. Part No. 3RV2411-1FA20-0DA0
Each
$318.29(exc. GST)
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 6A Current Rating
  • RS Stock No. 458-8728
  • Mfr. Part No. 1180-01-6A
Each
$45.44(exc. GST)
Phoenix Contact Thermal Circuit Breaker - CB TM1 Single Pole 50V dc Voltage Rating, 1A Current Rating
  • RS Stock No. 217-6361
  • Mfr. Part No. 2800858
Each
$88.23(exc. GST)
Siemens SENTRON 3VA9 Mounting Kit for use with 3VA2 100/160/250
  • RS Stock No. 218-1800
  • Mfr. Part No. 3VA9126-0SS10
Each
$109.99(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 260-525
  • Mfr. Part No. 3VA6225-7JT41-0AA0
Each
$15,107.08(exc. GST)
Siemens SENTRON Cover Frame for use with 3VA10/11, 3VA9114-0RL10, 3VA9114-0RL20
  • RS Stock No. 161-935
  • Mfr. Part No. 3VA9054-0SB10
Each
$141.71(exc. GST)
Better World
Schneider Electric Acti 9 2 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2724
  • Mfr. Part No. A9XPH224
Each
$192.68(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 500A 3VA, 3 channels
  • RS Stock No. 155-870
  • Mfr. Part No. 3VA2450-7JP32-0AA0
Each
$8,757.29(exc. GST)
Hager RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type A
  • RS Stock No. 602-093
  • Mfr. Part No. ADH720F
Each
$498.20(exc. GST)
Schneider Electric Acti9 Acti9 iC60 MCB, 1P, 40A Curve B, 500V AC, 72V DC, 240 V Breaking Capacity
  • RS Stock No. 479-574
  • Mfr. Part No. A9F93140
Each
$460.99(exc. GST)
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT Single Pole 240V ac Voltage Rating Clip-On,
  • RS Stock No. 339-335
  • Mfr. Part No. BJL16015
Each
$761.96(exc. GST)
Hager CFB RCD Switch, 40A, 4 Pole, 300mA, Type B, 230 → 400V
  • RS Stock No. 599-754
  • Mfr. Part No. CFB740F
Each
$2,235.16(exc. GST)
Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4843
  • Mfr. Part No. 3VA2580-5KQ32-0AA0
Each
$12,210.87(exc. GST)
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