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

35874 Products showing for Circuit Breakers

1709 of 999+
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0789
  • Mfr. Part No. 3WA9111-0AN31
Each
TWD14,399.00(exc. GST)
Temporarily out of stock
Siemens Alpha Support for use with Busbar System
  • RS Stock No. 228-8266
  • Mfr. Part No. 8WH9143-0AH01
Each (In a Pack of 50)
TWD31.80(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 100A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 345-320
  • Mfr. Part No. C11F34V100B
Each
TWD98,820.00(exc. GST)
In Stock
Schurter Thermal Circuit Breaker - T13 Single Pole 240V ac Voltage Rating, 1A Current Rating
  • RS Stock No. 284-6139
  • Mfr. Part No. 4411.0129
Each
TWD618.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 40A Curve B, 230V AC, 72V DC
  • RS Stock No. 210-3384
  • Mfr. Part No. 5SL4540-6
Each
TWD2,528.00(exc. GST)
Temporarily out of stock
Eaton xEnergy Main Distribution Board
  • RS Stock No. 259-236
  • Mfr. Part No. 284105 XPBCB1202
Each
TWD16,015.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact SU200M MCB, 3P, 2A Curve C
  • RS Stock No. 231-9756
  • Mfr. Part No. 2CDS273337R0024 SU203M-C2
1 Box of 1
TWD6,863.00(exc. GST)
Temporarily out of stock
ABB S304 MCB, 4P, 63A Curve B, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 203-765
  • Mfr. Part No. 2CDS384001R0635
Each
TWD25,645.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3666
  • Mfr. Part No. 1SDA071639R1
Each
TWD501,740.00(exc. GST)
Temporarily out of stock
Eaton MCB, 3P, 6A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-552
  • Mfr. Part No. 101317 PLI-C6/3
Each
TWD5,709.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 3A Curve B, 254V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 245-841
  • Mfr. Part No. 132417 FAZ-B3/1-NA
1 Pack of 2
TWD2,220.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9432
  • Mfr. Part No. 3VA1180-6ED36-0AA0
Each
TWD15,196.00(exc. GST)
Temporarily out of stock
Phoenix Contact Plug In Bridge for use with TMCP Circuit Breaker
  • RS Stock No. 801-7104
  • Mfr. Part No. 0916615
Each (In a Pack of 20)
TWD491.00(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 3 channels
  • RS Stock No. 157-246
  • Mfr. Part No. 3VA2116-5KQ32-0AA0
Each
TWD94,785.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 4 channels
  • RS Stock No. 259-4512
  • Mfr. Part No. 1SDA072733R1
Each
TWD200,943.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Adapter for use with Circuit Breaker
  • RS Stock No. 232-0170
  • Mfr. Part No. 1SDA066308R1 ADP PF XT2 4P
Each
TWD1,077.00(exc. GST)
Temporarily out of stock
XLAFCC Cover for use with Circuit Breaker
  • RS Stock No. 252-408
  • Mfr. Part No. 196893 XLAFCC
Each
TWD1,153.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8818
  • Mfr. Part No. 5SV1316-6LK13
Each
TWD4,646.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 249-261
  • Mfr. Part No. 3VA6440-8KQ41-2AA0
Each
TWD306,516.00(exc. GST)
In Stock
Europa EUC3P EUC MCB, 3P, 40A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6601
  • Mfr. Part No. EUC3P40C
Each
TWD637.00(exc. GST)
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