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

20 of 999+
In Stock
Better World
ABB Compact Home SH200 MCB, 1P, 32A Curve B, 440V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 539-8188
  • Mfr. Part No. 2CDS211001R0325 SH201-B32
Each
$34.38(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SL60 MCB, 1P + N, 6A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 328-538
  • Mfr. Part No. 5SL6006-7KL
Each
$154.54(exc. GST)
In Stock
Schneider Electric Thermal Circuit Breaker - GB2 2 Pole 277V ac Voltage Rating DIN Rail Mount, 500mA Current Rating
  • RS Stock No. 312-3768
  • Mfr. Part No. GB2DB05
Each
$246.28(exc. GST)
In Stock
ETA REX12 Electronic Circuit breaker 2A 24V REX12-T, 1 channels , DIN Rail Mount
  • RS Stock No. 175-0364
  • Mfr. Part No. REX12-TA1-107-DC24V-2A
Each
$101.37(exc. GST)
Temporarily out of stock
Schneider Electric Linergy Connector Support for use with Linergy (Linergy BS) Busbar, PrismaSeT (PrismaSeT P) Enclosure
  • RS Stock No. 276-8820
  • Mfr. Part No. LVS04694
Each
$595.56(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 A9F9 MCB, 2P, 32A, Type Z, 400V AC, 125V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 211-2491
  • Mfr. Part No. A9F92232
Each
$298.17(exc. GST)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IEG6 Single Pole Panel Mount, 50A Current Rating
  • RS Stock No. 275-0205
  • Mfr. Part No. IEG6-1-72-50.0-A-21-V
1 Box of 5
$518.73(exc. GST)
In Stock
Europa Blanking Plate
  • RS Stock No. 201-7936
  • Mfr. Part No. ECUBP
1 Pair
$7.91(exc. GST)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8297
  • Mfr. Part No. SG21NA300R
Each
$487.49(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.25kA , DIN Rail
  • RS Stock No. 127-482
  • Mfr. Part No. 183344 IZMX16B3-V12W-1
Each
$12,621.03(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 2P, 32A Curve C, 230V AC, 60V DC, 30 kA Breaking Capacity
  • RS Stock No. 610-673
  • Mfr. Part No. 5SY8532-7
Each
$249.18(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY Circuit Breaker, 1P, 500mA Curve C, 440V AC, 70 kA Breaking Capacity
  • RS Stock No. 664-368
  • Mfr. Part No. 5SY8105-7
Each
$105.77(exc. GST)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - LELHK11 2 Pole 240V ac Voltage Rating Panel Mount, 15A Current Rating
  • RS Stock No. 275-0376
  • Mfr. Part No. LELHK11-1-62-15.0-U-01-V
1 Box of 5
$1,878.07(exc. GST)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Arrester, 25kA, 350V ac, DIN Rail Mount
  • RS Stock No. 522-384
  • Mfr. Part No. 2905419
Each
$1,625.67(exc. GST)
Temporarily out of stock
Eaton, xEnergy MCCB 1P 160A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 537-5573
  • Mfr. Part No. 259123 NZMN2-VE160
Each
$1,763.78(exc. GST)
Temporarily out of stock
Schneider Electric Acti 9 C60H MCB, 1P, 10A Curve C
  • RS Stock No. 230-6685
  • Mfr. Part No. A9N61508
Each
$91.12(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 106 Single Pole 240V Voltage Rating Panel Mount, 6A Current Rating
  • RS Stock No. 728-8642
  • Mfr. Part No. 106-P10-000040-6A
Each
$33.65(exc. GST)
In Stock
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 782-0911
  • Mfr. Part No. W28-XQ1A-3
Each
$14.17(exc. GST)
In Stock
ABB 4 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS Stock No. 811-1880
  • Mfr. Part No. 1SL1200A00 65P04X12
Each
$30.82(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Linergy Busbar, 690V, 60mm Pitch
  • RS Stock No. 219-9103
  • Mfr. Part No. LA9ZX01495
Each (In a Pack of 10)
$97.479(exc. GST)
1
20
1190
Results per page

Related links