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

89 of 999+
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VA2 Molded Case Circuit Breakers
  • RS Stock No. 629-304
  • Mfr. Part No. 8GK6720-4KK13
Each
$649.21(exc. GST)
In Stock
ASSMANN WSW Surge Protector, 10kV, DIN Rail Mount
  • RS Stock No. 649-587
  • Mfr. Part No. DN-95421
Each
$90.83(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 800A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 654-489
  • Mfr. Part No. C080N350FM
Each
$8,892.97(exc. GST)
Temporarily out of stock
Schneider Electric Altivar Process Modular Busbar, 380 → 480V
  • RS Stock No. 578-327
  • Mfr. Part No. VW3A98ABPDCE1
Each
$348.29(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1410-L Single Pole 250V Voltage Rating PCB Mount, 630mA Current Rating
  • RS Stock No. 409-750
  • Mfr. Part No. 1410-L210-L2F1-S02-0.63A
Each
$25.04(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4726
  • Mfr. Part No. 3VA2163-6JQ42-0AA0
Each
$4,170.43(exc. GST)
Currently unavailable
Legrand HX 2 Phase Busbar, 400V, 35.5mm Pitch
  • RS Stock No. 731-9437
  • Mfr. Part No. 4 049 38
Each
$59.03(exc. GST)
Temporarily out of stock
Clipsal Electrical MAX9 MX9MC MCB, 3P, 40A, 415V AC, 6000 A Breaking Capacity
  • RS Stock No. 282-2955
  • Mfr. Part No. MX9MC340
Each
$67.11(exc. GST)
In Stock
Phoenix Contact EC Electronic Circuit breaker 4A 12V EC 1, On Base Element
  • RS Stock No. 885-6261
  • Mfr. Part No. 3000763
1 Box of 6
$1,155.63(exc. GST)
Temporarily out of stock
Hager BDF Series RCCB, 40A, 4 Pole, 30mA, Type F
  • RS Stock No. 597-899
  • Mfr. Part No. BDF840
Each
$990.07(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 100A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 178-7919
  • Mfr. Part No. LV426707
Each
$2,675.38(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4127
  • Mfr. Part No. 3VA2116-8HN32-0AA0
Each
$3,857.45(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 6A Current Rating
  • RS Stock No. 344-5327
  • Mfr. Part No. 1658-G21-02-P10-6A
Each
$12.39(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - TMC 1 Single Pole 65 V dc, 250V ac Voltage Rating DIN Rail Mount, 16A
  • RS Stock No. 801-7003
  • Mfr. Part No. 0914183
Each
$169.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4214
  • Mfr. Part No. 1SDA072334R1
Each
$12,266.08(exc. GST)
Temporarily out of stock
Schneider Electric Surge Arrester, 8kA, 460V ac, Clip-On Mount
  • RS Stock No. 429-213
  • Mfr. Part No. A9L08421
Each
$1,634.13(exc. GST)
In Stock
ABB Tmax T Undervoltage Release for use with T4, T5, T6 Circuit Breakers
  • RS Stock No. 225-5860
  • Mfr. Part No. 1SDA054891R1 UVR-C 230VAC/DC T4-6
Each
$472.93(exc. GST)
Temporarily out of stock
Siemens SENTRON Universal Release for use with 3VA1 and 3VA20-26
  • RS Stock No. 155-338
  • Mfr. Part No. 3VA9908-0BD13
Each
$731.83(exc. GST)
Temporarily out of stock
Schneider Electric Acti 9 iC60H MCB, 2P, 16A Curve C
  • RS Stock No. 230-6673
  • Mfr. Part No. A9F54216
Each
$200.23(exc. GST)
In Stock
Siemens 230V ac Circuit Trip
  • RS Stock No. 622-0654
  • Mfr. Part No. 5TT4102-0
Each
$153.36(exc. GST)
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