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

23559 Products showing for Circuit Breakers

64 of 999+
Siemens SENTRON 5SY Circuit Breaker, 3P, 16A Curve D, 440V AC, 72V DC, 30 kA Breaking Capacity
  • RS Stock No. 664-315
  • Mfr. Part No. 5SY8316-8BB08
Each
$303.50(exc. GST)
Legrand VX 1 Phase Busbar, 230V, 125mm Pitch
  • RS Stock No. 786-5687
  • Mfr. Part No. 4 050 02
Each
$143.12(exc. GST)
Hager Hager HMX Circuit Breaker, 3P, 16A Curve C, 415V AC, 50 kA Breaking Capacity
  • RS Stock No. 599-871
  • Mfr. Part No. HMX316
Each
$1,098.50(exc. GST)
Eaton Phase Busbar 1 Phase Busbar, 277V
  • RS Stock No. 230-997
  • Mfr. Part No. 121992 BB-UL-25/1P-1,5M/37
Each
$82.40(exc. GST)
ABB SN201 MCB, 1+N, 40A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 186-3491
  • Mfr. Part No. 2CSS255102R0404 SN201 C40-L
Each
$132.30(exc. GST)
RS PRO Three Phase Industrial Surge Protector, 50kA, 1.35kV, DIN Rail Mount
  • RS Stock No. 101-795
Each
$845.47(exc. GST)
Siemens SENTRON 5SY8 MCB, 4P, 500mA Curve C, 400V AC, 70 kA Breaking Capacity
  • RS Stock No. 610-370
  • Mfr. Part No. 5SY8605-7
Each
$560.66(exc. GST)
ABB System Pro M Compact S200M MCB, 1P, 20A Curve C, 253V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 535-4166
  • Mfr. Part No. 2CDS271001R0204 S201M-C20
Each
$47.40(exc. GST)
Schneider Electric Acti 9 iC60N MCB, 3P, 2A Curve C
  • RS Stock No. 230-6661
  • Mfr. Part No. A9F44302
Each
$71.82(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 2P, 10A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7719
  • Mfr. Part No. 2CDS252001R0104 S202-C10
Each
$123.85(exc. GST)
Phoenix Contact 3 Phase Surge Protector, 50kA, 1.9kV, DIN Rail Mount
  • RS Stock No. 890-3742
  • Mfr. Part No. 2905340
Each
$895.04(exc. GST)
Schneider Electric ComPact Trip Unit for use with Compact NSX 100/160/250 circuit breakers
  • RS Stock No. 221-0929
  • Mfr. Part No. LV429116
Each
$3,080.06(exc. GST)
Better World
Schneider Electric TeSys TeSyS GV MCB, 3P, 7A, 690V AC, 50 kA Breaking Capacity
  • RS Stock No. 175-1428
  • Mfr. Part No. GV4L07N
Each
$1,420.42(exc. GST)
Clipsal Electrical Surge Arrester, 40kA, 240V ac, DIN Rail Mount
  • RS Stock No. 282-3008
  • Mfr. Part No. MX9SP40C
Each
$94.67(exc. GST)
Eaton Eaton Moeller NZM Assembly Kit for use with N(S)1(-4), NZM1(-4), PN1(-4)
  • RS Stock No. 254-554
  • Mfr. Part No. 266626 NZM1-XHB
Each
$251.20(exc. GST)
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 80A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 254-6280
  • Mfr. Part No. C10B3TM080
Each
$948.94(exc. GST)
Schneider Electric Acti 9 Cover for use with ARA, IC60, iDPN Vigi, iLD, iSW, ISW-NA, RCA, Reflex iC60
  • RS Stock No. 791-2773
  • Mfr. Part No. A9A26981
Each (In a Pack of 20)
$4.205(exc. GST)
Schneider Electric RCBO, 32A Current Rating, 1P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 230-6649
  • Mfr. Part No. A9D61832
Each
$85.23(exc. GST)
Schneider Electric Acti9 iID RCCB, 80A, 4 Pole, 415V
  • RS Stock No. 245-091
  • Mfr. Part No. A9R12480
Each
$757.06(exc. GST)
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Dip LI, 4 channels
  • RS Stock No. 259-3826
  • Mfr. Part No. 1SDA071841R1
Each
$56,981.22(exc. GST)
Results per page
1
64
1178

Related links