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

1159 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4733
  • Mfr. Part No. 3VA2163-7HK36-0AA0
Each
$1,832.63(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 260-642
  • Mfr. Part No. 3VA6325-7KM41-2AA0
Each
$12,490.46(exc. GST)
Temporarily out of stock
Eaton xEnergy Main Distribution Board
  • RS Stock No. 258-582
  • Mfr. Part No. 284161 XPL06
Each
$412.05(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-535
  • Mfr. Part No. 3VA6140-8JT41-0AA0
Each
$4,978.22(exc. GST)
Temporarily out of stock
Schneider Electric Resi9 R9F2 MCB, 3P, 13A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-205
  • Mfr. Part No. R9F23313
Each
$238.00(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 40A, Fixed
  • RS Stock No. 122-537
  • Mfr. Part No. LV510723
Each
$935.68(exc. GST)
In Stock
Eaton xComfort Door for use with Mini Compact Distribution Board
  • RS Stock No. 270-5259
  • Mfr. Part No. 177078 T4-MINI
Each
$9.70(exc. GST)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 35 kA
  • RS Stock No. 249-149
  • Mfr. Part No. 3VA6610-7JQ42-0AA0
Each
$30,048.84(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LI, 3 channels
  • RS Stock No. 259-4165
  • Mfr. Part No. 1SDA072281R1
Each
$12,340.38(exc. GST)
Temporarily out of stock
Schneider Electric, MasterPact MTZ Circuit Breaker Accessory
  • RS Stock No. 119-446
  • Mfr. Part No. LV833579SP
Each
$3,870.78(exc. GST)
Temporarily out of stock
Schneider Electric Multi 9 Multi9 MCB, 2P, 63A, 230 → 240V AC
  • RS Stock No. 119-346
  • Mfr. Part No. M9V31263
Each
$2,306.69(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-4264
  • Mfr. Part No. 1SDA072392R1
Each
$19,328.28(exc. GST)
Temporarily out of stock
Schneider Electric R9R RCCB, 25A, 2 Pole, 30mA, Type F, 230V ac
  • RS Stock No. 212-299
  • Mfr. Part No. R9R42225
Each
$655.20(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-4595
  • Mfr. Part No. 1SDA072854R1
Each
$11,938.09(exc. GST)
Temporarily out of stock
Schneider Electric RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type AC, Acti9 Range
  • RS Stock No. 276-9124
  • Mfr. Part No. A9D07210
Each
$1,208.10(exc. GST)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 1A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 514-0175
  • Mfr. Part No. 2CDS253001R0217 S203-K1
Each
$294.16(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 40A, Fixed
  • RS Stock No. 122-514
  • Mfr. Part No. LV510573
Each
$833.31(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 4 channels
  • RS Stock No. 155-801
  • Mfr. Part No. 3VA2325-8HK42-0AA0
Each
$7,969.35(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 259-156
  • Mfr. Part No. 283872 XBSP
Each
$21.90(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8296
  • Mfr. Part No. SG21NA300
Each
$392.54(exc. GST)
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