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

23542 Products showing for Circuit Breakers

1032 of 999+
Temporarily out of stock
Eaton xEnergy Main Distribution Board
  • RS Stock No. 257-935
  • Mfr. Part No. 284103 XPBCB0802
Each
$864.12(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller Series NZM Fixing Screws for use with N(S)3-4, NZM3-4, PN3-4
  • RS Stock No. 255-647
  • Mfr. Part No. 266780 NZM3-4-XKS
Each
$95.68(exc. GST)
New product - Preorder today
Schneider Electric RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 654-795
  • Mfr. Part No. A9DH3606
Each
$612.62(exc. GST)
Temporarily out of stock
Siemens SENTRON 3VA9 Mounting Frame for use with 3VA1 400/630, 3VA2 400/630
  • RS Stock No. 218-1850
  • Mfr. Part No. 3VA9363-0SB20
Each
$191.87(exc. GST)
Temporarily out of stock
nVent HOFFMAN Busbar
  • RS Stock No. 270-1506
  • Mfr. Part No. NS750
Each
$108.26(exc. GST)
Temporarily out of stock
Schneider Electric, Compact MCCB 3P 800A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 354-475
  • Mfr. Part No. C080L3FM
Each
$7,674.88(exc. GST)
In Stock
Schneider Electric Acti9 Active Vigi iC60 MCB Mini Circuit Breaker, 2P, 25A, Type A-SI, 230V AC
  • RS Stock No. 655-444
  • Mfr. Part No. A9V6E225
Each
$1,576.37(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 3m, 40A, Canalis KN Series
  • RS Stock No. 211-0435
  • Mfr. Part No. KNT40ED4303
Each
$791.25(exc. GST)
Temporarily out of stock
BB-EV 1 Phase Busbar, 1000V
  • RS Stock No. 247-501
  • Mfr. Part No. 168827 BB-EVF-16/1P-1MU
Each
$76.38(exc. GST)
Temporarily out of stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 6A Current Rating
  • RS Stock No. 221-5631
  • Mfr. Part No. 3-128-236
Each
$49.36(exc. GST)
In Stock
Schneider Electric C120 A9N Circuit Breaker, 2P, 80A, Type AC, 415V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-7116
  • Mfr. Part No. A9N18383
Each
$1,005.88(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-816
  • Mfr. Part No. 3VA6560-5KT42-2AA0
Each
$16,387.83(exc. GST)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T12 Single Pole 240V ac Voltage Rating, 2A Current Rating
  • RS Stock No. 284-6072
  • Mfr. Part No. 4410.0126
Each
$68.97(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 150A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-024
  • Mfr. Part No. 3VA6115-8JQ41-2AA0
Each
$8,947.38(exc. GST)
Temporarily out of stock
SENTRON Busbar Connector for use with 3VA55, 3VA65 Series
  • RS Stock No. 263-795
  • Mfr. Part No. 3VA9674-0QB00
1 Kit
$1,403.42(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9755
  • Mfr. Part No. 3VA1116-3FD46-0AA0
Each
$2,143.82(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 100A, Plug In
  • RS Stock No. 122-345
  • Mfr. Part No. LV510307P
Each
$267.88(exc. GST)
Temporarily out of stock
BB-EV 3 Phase Busbar, 690V
  • RS Stock No. 247-507
  • Mfr. Part No. 168847 BB-EVF-16/3P-1MU/AUX
Each
$205.69(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller Series NZM Terminal Extention for use with N4-4, NZM4-4
  • RS Stock No. 257-862
  • Mfr. Part No. 281592 NZM4-4-XKV95
Each
$1,273.80(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 16 kA
  • RS Stock No. 209-6741
  • Mfr. Part No. 3VA1063-2ED32-0AA0
Each
$689.46(exc. GST)
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