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

25111 Products showing for Circuit Breakers

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In Stock
RS Better World
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker, Fixed
  • RS Stock No. 221-0947
  • Mfr. Part No. LV429408
Subtotal (1 unit)
$910.77(exc. GST)
$910.77/unit
Temporarily out of stock
Rittal Copper SZ SZ Busbar
  • RS Stock No. 230-4854
  • Mfr. Part No. 2364000
Subtotal (1 unit)
$378.09(exc. GST)
$378.09/unit
In Stock
RS Better World
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker 3-Pole 400A, Breaking Capacity 50 kA
  • RS Stock No. 260-8121
  • Mfr. Part No. C40N3
Subtotal (1 unit)
$4,548.34(exc. GST)
$4,548.34/unit
In Stock
RS Better World
Schneider Electric Acti9 C120N Miniature Circuit Breaker, 3-Pole, 125A, Type C, 440V ac AC, 375 V dc DC, 10 kA Breaking
  • RS Stock No. 776-3076
  • Mfr. Part No. A9N18369
Subtotal (1 unit)
$462.10(exc. GST)
$462.10/unit
Temporarily out of stock
Schneider Electric IID Series Residual Current Circuit Breaker, 40A, 4-Pole, 30 mA, Type A 415V ac
  • RS Stock No. 230-6688
  • Mfr. Part No. A9R51440
Subtotal (1 unit)
$112.80(exc. GST)
$112.80/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 1A, Type C, 240V ac AC, 72 V dc DC, 50 kA Breaking
  • RS Stock No. 435-913
  • Mfr. Part No. A9F44101
Subtotal (1 unit)
$37.75(exc. GST)
$37.75/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 20A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 230-6647
  • Mfr. Part No. A9D61820
Subtotal (1 unit)
$90.83(exc. GST)
$90.83/unit
Temporarily out of stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 3-Pole, 32A, Type C, 440V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 230-6668
  • Mfr. Part No. A9F44332
Subtotal (1 unit)
$75.28(exc. GST)
$75.28/unit
In Stock
nVent ERIFLEX Copper ERIFLEX 55020 Busbar, 18 mm Pitch
  • RS Stock No. 277-6092
  • Mfr. Part No. 550200
Subtotal (1 pack of 10 units)
$1,308.24(exc. GST)
$130.824/unit
Unavailable
Schneider Electric, NSX MCCB 4P 630A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 219-8375
  • Mfr. Part No. LV432808
Subtotal (1 unit)
$8,232.12(exc. GST)
$8,232.12/unit
In Stock
Schneider Electric TeSys Earthing Block for use with V1, V02, V01, V0, V2
  • RS Stock No. 279-6191
  • Mfr. Part No. VZ14
Subtotal (1 unit)
$93.93(exc. GST)
$93.93/unit
In Stock
RS Better World
Schneider Electric Acti9 Acti9 C120 Miniature Circuit Breaker, 3-Pole, 125A, Type D, 375 V dc DC, 15000 A Breaking
  • RS Stock No. 219-8302
  • Mfr. Part No. A9N18514
Subtotal (1 unit)
$1,398.77(exc. GST)
$1,398.77/unit
Temporarily out of stock
RS Better World
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker 3-Pole 630A, Breaking Capacity 36 kA
  • RS Stock No. 260-8199
  • Mfr. Part No. C63F32D630
Subtotal (1 unit)
$7,564.10(exc. GST)
$7,564.10/unit
Temporarily out of stock
ABB DDA200 Series Residual Current Device, 25A, 2-Pole, 10 mA, Type AC, 1 kA 400V ac
  • RS Stock No. 183-3647
  • Mfr. Part No. 2CSB202001R0250
Subtotal (1 unit)
$550.19(exc. GST)
$550.19/unit
Temporarily out of stock
Siemens SENTRON Remote Controlled Mechanism for use with Miniature Circuit Breaker
  • RS Stock No. 187-5154
  • Mfr. Part No. 5ST3053
Subtotal (1 unit)
$1,074.13(exc. GST)
$1,074.13/unit
Temporarily out of stock
RS Better World
Schneider Electric Acti9 C120N Miniature Circuit Breaker, 1-Pole, 80A, Type C, 240V ac AC, 125 V dc DC, 10 kA Breaking
  • RS Stock No. 230-6679
  • Mfr. Part No. A9N18357
Subtotal (1 unit)
$142.12(exc. GST)
$142.12/unit
Temporarily out of stock
HPM Electronic Circuit Breaker 32A 230V, Plug-in Type C
  • RS Stock No. 273-1129
  • Mfr. Part No. CDCB132
Subtotal (1 unit)
$40.98(exc. GST)
$40.98/unit
In Stock
ETA 1658 Thermal Circuit Breaker -, 15A Current Rating 1-Pole, Panel
  • RS Stock No. 273-0882
  • Mfr. Part No. 1658-G21-02-P10-15A
Subtotal (1 unit)
$17.81(exc. GST)
$17.81/unit
In Stock
RS Better World
ABB, Protecta, XT1D Molded Case Circuit Breaker 3-Pole 160A, Breaking Capacity 36 kA, DIN Rail
  • RS Stock No. 831-9181
  • Mfr. Part No. 1SDA068208R1 XT1D 160 3p F F
Subtotal (1 unit)
$948.80(exc. GST)
$948.80/unit
In Stock
Phoenix Contact CLIPLINE UT 6-TMC Thermal Circuit Breaker -, 4A Current Rating 1-Pole, DIN Rail
  • RS Stock No. 684-3597
  • Mfr. Part No. 0916606
Subtotal (1 unit)
$62.63(exc. GST)
$62.63/unit
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