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

60 of 999+
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.6kA IZMX/INX, 4 channels , Fixed
  • RS Stock No. 127-529
  • Mfr. Part No. 183461 IZMX16B4-P16W-1
Each
$30,256.30(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4155
  • Mfr. Part No. 3VA1110-3EF36-0AA0
Each
$1,090.78(exc. GST)
Temporarily out of stock
Hager RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type AC
  • RS Stock No. 602-217
  • Mfr. Part No. ADC817F
Each
$446.04(exc. GST)
In Stock
Eaton 208 → 240V ac Undervoltage Release Circuit Trip for use with N(S)2(-4) Series, N(S)3(-4) Series, NZM2(-4)
  • RS Stock No. 537-5630
  • Mfr. Part No. 259591 NZM2/3-XUHIV208-240AC
Each
$470.12(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-394
  • Mfr. Part No. 3VA5140-6ED31-1AA0
Each
$1,688.94(exc. GST)
In Stock
Schneider Electric Multi9 M9F MCB Mini Circuit Breaker, 1P, 6A Curve D, 240V AC, 10 kA Breaking Capacity
  • RS Stock No. 654-531
  • Mfr. Part No. M9F12106
Each
$100.08(exc. GST)
Temporarily out of stock
Hager CDA RCD Switch, 40A, 2 Pole, 30mA, Type A, 127 → 230V
  • RS Stock No. 599-822
  • Mfr. Part No. CDA747F
Each
$232.83(exc. GST)
Temporarily out of stock
Phoenix Contact Surge Arrester, 4.2kV, DIN Rail Mount
  • RS Stock No. 493-502
  • Mfr. Part No. 1466776
Each
$475.13(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY Circuit Breaker, 1P + N, 16A Curve D, 250V AC, 60V DC, 30 kA Breaking Capacity
  • RS Stock No. 664-335
  • Mfr. Part No. 5SY8516-8
Each
$212.67(exc. GST)
Temporarily out of stock
Siemens SENTRON Undervoltage Release for use with 3VA1 and 3VA20-26
  • RS Stock No. 157-837
  • Mfr. Part No. 3VA9908-0BB12
Each
$440.85(exc. GST)
In Stock
Schneider Electric Distribution Block for use with Compact, Kaedra, Pragma, Prisma-G, Prisma-P, Prisma-Pack, Prisma-PH,
  • RS Stock No. 822-7953
  • Mfr. Part No. LGY412548
Each
$83.82(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 Acti9 iC60 MCB, 3P, 63A, Type AC, 500V AC, 300 mA Breaking Capacity
  • RS Stock No. 347-125
  • Mfr. Part No. A9V15363
Each
$1,689.36(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 1P, 20A Curve D, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 610-535
  • Mfr. Part No. 5SY7120-8
Each
$102.20(exc. GST)
Temporarily out of stock
Hager RCBO, 25A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type F
  • RS Stock No. 602-090
  • Mfr. Part No. ADF825F
Each
$705.52(exc. GST)
Temporarily out of stock
Hager RCBO, 16A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type AC
  • RS Stock No. 602-213
  • Mfr. Part No. AFC416F
Each
$835.42(exc. GST)
Temporarily out of stock
Schneider Electric 4 Phase Surge Arrester, 75kA, 2500V (Volts), Clip-On Mount
  • RS Stock No. 438-847
  • Mfr. Part No. M9L47600
Each (In a Pack of 36)
$3,016.489(exc. GST)
Temporarily out of stock
Schneider Electric Horizontal Distribution Length, 3m, 40A, Canalis Series
  • RS Stock No. 214-786
  • Mfr. Part No. KNA40ED4301
Each
$457.95(exc. GST)
Temporarily out of stock
Schneider Electric CompacT Cover Frame for use with ComPacT NS630b
  • RS Stock No. 654-976
  • Mfr. Part No. C080N3WM
Each
$4,383.41(exc. GST)
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 200mA 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-103
  • Mfr. Part No. 3RV2411-0BA10
Each
$437.65(exc. GST)
Temporarily out of stock
Siemens SENTRON Magnet for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 265-518
  • Mfr. Part No. 3VW9011-0AK06
Each
$535.92(exc. GST)
1
60
1190
Results per page

Related links