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

1105 of 999+
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA12
  • RS Stock No. 153-372
  • Mfr. Part No. 3VA9254-0JC22
Each
$564.12(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Busbar Trunking Joint, Canalis KN Series
  • RS Stock No. 211-0434
  • Mfr. Part No. KNT100ZJ4
Each
$224.95(exc. GST)
Temporarily out of stock
Schneider Electric Cross Elbow Busbar Trunking, 290mm, 630A, Canalis Series
  • RS Stock No. 335-035
  • Mfr. Part No. KSA630DXC40
Each
$5,273.32(exc. GST)
In Stock
Siemens SENTRON 2 Phase Busbar, 18mm Pitch
  • RS Stock No. 226-0813
  • Mfr. Part No. 5ST3636
Each (In a Pack of 10)
$20.231(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 630A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 341-378
  • Mfr. Part No. C063L35AFM
Each
$27,293.20(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 800A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 341-273
  • Mfr. Part No. C080L350FM
Each
$23,192.66(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 40A
  • RS Stock No. 221-0894
  • Mfr. Part No. BDL36040LU
Each
$1,982.39(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT NSX MCCB 3P 100A, Fixed Mount
  • RS Stock No. 254-6292
  • Mfr. Part No. C10H3
Each
$1,155.73(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9342
  • Mfr. Part No. 3VA1140-6GF42-0AA0
Each
$1,399.49(exc. GST)
Temporarily out of stock
Eaton xEnergy Main Distribution Board
  • RS Stock No. 257-942
  • Mfr. Part No. 284165 XPMMB0804
Each
$155.40(exc. GST)
Temporarily out of stock
Schneider Electric Cross Canalis, 165mm, 250A, Canalis Series
  • RS Stock No. 119-585
  • Mfr. Part No. KSA250DXC40
Each
$4,430.80(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 55 kA
  • RS Stock No. 209-6834
  • Mfr. Part No. 3VA1150-5GF46-0AA0
Each
$1,324.57(exc. GST)
In Stock
Better World
Schneider Electric Mounting Plate for use with AK5 Series
  • RS Stock No. 608-6808
  • Mfr. Part No. AK5PA232
Each
$240.66(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 800A IZMX/INX, 3 channels , Withdrawable
  • RS Stock No. 132-836
  • Mfr. Part No. 183595 IZMX40N3-P08W-1
Each
$24,701.39(exc. GST)
Temporarily out of stock
Siemens 5SV56 RCCB, 63A, 4 Pole, 300mA, Type A, 400V
  • RS Stock No. 328-526
  • Mfr. Part No. 5SV5646-6KL
Each
$346.15(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 630A 3VA, 3 channels
  • RS Stock No. 156-772
  • Mfr. Part No. 3VA2463-7KP32-0AA0
Each
$9,770.31(exc. GST)
Temporarily out of stock
SENTRON Cover Frame for use with 3VA61/62 Series
  • RS Stock No. 263-708
  • Mfr. Part No. 3VA9233-0SB30
Each
$303.36(exc. GST)
Temporarily out of stock
Siemens ALPHA Mounting Plate for use with ALPHA DIN Installation Distributor
  • RS Stock No. 272-0346
  • Mfr. Part No. 8GK4452-1KK12
Each
$181.89(exc. GST)
Temporarily out of stock
Eaton xComfort KLV Installaton Accessory for use with Basic Device, Installation Distribution Boards, KLV for Projects
  • RS Stock No. 124-687
  • Mfr. Part No. 178884 KLV-SF3L-4PR
Each
$195.77(exc. GST)
Temporarily out of stock
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX100/160/250
  • RS Stock No. 260-9395
  • Mfr. Part No. C106MA100
Each
$745.44(exc. GST)
1
1105
1190
Results per page

Related links