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

1108 of 999+
Temporarily out of stock
Eaton xComfort Distribution Board Enclosure, 18 Way
  • RS Stock No. 257-995
  • Mfr. Part No. 280357 BC-U-2/36-ECO
Each
$317.87(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 600A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 249-868
  • Mfr. Part No. 3VA6460-8KT41-0AA0
Each
$15,764.42(exc. GST)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VA1 Molded Case Circuit Breakers
  • RS Stock No. 629-344
  • Mfr. Part No. 8GK6736-6KK33
Each
$891.36(exc. GST)
In Stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 10A Current Rating
  • RS Stock No. 221-5613
  • Mfr. Part No. 3-128-219
1 Box of 10
$380.01(exc. GST)
Temporarily out of stock
Hager NGN MCB, 2P, 500mA Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 144-4755
  • Mfr. Part No. NGN200
Each
$277.86(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 25 kA
  • RS Stock No. 209-6960
  • Mfr. Part No. 3VA1110-3ED32-0AA0
Each
$940.24(exc. GST)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 63A, Fixed
  • RS Stock No. 122-521
  • Mfr. Part No. LV510685
Each
$586.98(exc. GST)
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA1 400/630, 3VA2 400/630
  • RS Stock No. 269-7186
  • Mfr. Part No. 3VA9383-0JG13
Each (In a Pack of 3)
$480.857(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 6 Way, 250 A
  • RS Stock No. 339-366
  • Mfr. Part No. SEA9BPN6
Each
$1,047.12(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Breaking Capacity 8 kA, Fixed Mount
  • RS Stock No. 346-755
  • Mfr. Part No. C10F44B100
Each
$7,687.46(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller xPole 3 Phase Busbar, 500V
  • RS Stock No. 251-083
  • Mfr. Part No. 215658 EVG-3PHAS/12MODUL/HI
Each
$35.09(exc. GST)
Temporarily out of stock
Siemens SENTRON Control Wire Tap for use with 3VA1 100/160 3VA2 100/160/250
  • RS Stock No. 210-9312
  • Mfr. Part No. 3VA9200-0WB00
Each (In a Pack of 10)
$32.897(exc. GST)
In Stock
Better World
ABB Compact Home SH200 MCB, 3P, 40A Curve B, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8324
  • Mfr. Part No. 2CDS213001R0405 SH203-B40
Each
$131.11(exc. GST)
Temporarily out of stock
Schneider Electric Tee Elbow Busbar Trunking, 290 → 800mm, 1000A, Canalis Series
  • RS Stock No. 346-712
  • Mfr. Part No. KSA1000DLE4CFM
Each
$17,477.08(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 250-153
  • Mfr. Part No. 3VA6580-6JT46-2AA0
Each
$23,994.21(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 270-3835
  • Mfr. Part No. 3VA2063-5KQ32-0AA0
Each
$4,466.80(exc. GST)
In Stock
Phoenix Contact PTCB Electronic Circuit breaker 24A 24V PTCB E1, 1 channels
  • RS Stock No. 220-5804
  • Mfr. Part No. 1135751
Each
$77.88(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 260-576
  • Mfr. Part No. 3VA6340-0KQ41-0AA0
Each
$14,620.76(exc. GST)
In Stock
Eaton, xEnergy MCCB 3P 40A, Breaking Capacity 50 kA
  • RS Stock No. 454-8095
  • Mfr. Part No. 259081 NZMN1-A40
Each
$1,160.06(exc. GST)
In Stock
Siemens SENTRON Connection Unit for use with Circuit Breaker Busbar
  • RS Stock No. 269-8414
  • Mfr. Part No. 8US1261-5MS13
Each
$198.53(exc. GST)
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