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

183 of 999+
Eaton Eaton xEffect SASY 60i Busbar
  • RS Stock No. 248-032
  • Mfr. Part No. 107204 BBT-CU-BAR500/720-150
Each (In a Pack of 3)
TWD3,042.70(exc. GST)
Better World
ABB, XT4H MCCB 3P 16A, Fixed Mount
  • RS Stock No. 236-6698
  • Mfr. Part No. 1SDA068332R1 XT4H 160 TMD 16A FF
Each
TWD25,239.00(exc. GST)
Better World
Siemens 5SV3 RCCB, 63A, 4 Pole, 300mA, Type B, 400V ac
  • RS Stock No. 211-9703
  • Mfr. Part No. 5SV3646-5
Each
TWD60,175.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9728
  • Mfr. Part No. 3VA1112-5FD42-0AA0
Each
TWD38,847.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 269-996
  • Mfr. Part No. 3VA6110-8JQ31-0AA0
Each
TWD96,553.00(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Plug In
  • RS Stock No. 122-474
  • Mfr. Part No. LV510453P
Each
TWD7,424.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 210-1690
  • Mfr. Part No. 3VA1216-4EF32-0AA0
Each
TWD36,632.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-3522
  • Mfr. Part No. 1SDA071499R1
Each
TWD414,537.00(exc. GST)
ABB System Pro M Compact S200 M UC MCB, 1P, 4A Curve C, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-019
  • Mfr. Part No. 2CDS271061R0044
Each
TWD3,498.00(exc. GST)
Better World
Siemens Sentron 5SY4 MCB, 4P, 63A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3211
  • Mfr. Part No. 5SY4463-7
Each
TWD6,662.00(exc. GST)
Siemens, SENTRON MCCB 4P 800A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4842
  • Mfr. Part No. 3VA2580-5JP42-0AA0
Each
TWD431,354.00(exc. GST)
Eaton RCCB, 63A, 4 Pole, 30mA, Type G, 230 V ac, 400 V ac
  • RS Stock No. 227-0747
  • Mfr. Part No. 264998 PFGM-63/4/003-G
Each
TWD10,523.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-656
  • Mfr. Part No. 3VA6225-5KM41-2AA0
Each
TWD155,557.00(exc. GST)
Better World
Schneider Electric Acti 9 A9N1 MCB, 2P, 125A Curve B
  • RS Stock No. 219-8284
  • Mfr. Part No. A9N18415
Each
TWD13,249.00(exc. GST)
Eaton IZMX/INX Electronic Circuit Breaker 2.5kA , DIN Rail
  • RS Stock No. 132-877
  • Mfr. Part No. 183747 IZMX40H3-V25W-1
Each
TWD727,256.00(exc. GST)
Eaton Three Phase Surge Protector, 12.5kA, 1.5kV, DIN Rail Mount
  • RS Stock No. 120-845
  • Mfr. Part No. 158335 SPBT12-280-3+NPE-AX
Each
TWD40,827.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 36 kA
  • RS Stock No. 209-6747
  • Mfr. Part No. 3VA1110-4EF32-0AA0
Each
TWD19,004.00(exc. GST)
Siemens SENTRON 3 Phase Busbar Connector, 400V
  • RS Stock No. 152-513
  • Mfr. Part No. 5ST3623-4
Each
TWD843.00(exc. GST)
Better World
Schneider Electric Multi 9 C60BP MCB, 1P, 500mA Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 211-2416
  • Mfr. Part No. M9F42170
Each
TWD4,548.00(exc. GST)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6354
  • Mfr. Part No. C25F3TM160
Each
TWD49,262.00(exc. GST)
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