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

156 of 999+
ABB System Pro M Compact S200 MCB, 4P, 1A, Type Z, 400V AC, 110V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-731
  • Mfr. Part No. 2CDS254001R0218
Each
TWD16,070.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 3 channels
  • RS Stock No. 156-653
  • Mfr. Part No. 3VA2216-5MQ32-0AA0
Each
TWD78,782.00(exc. GST)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7262
  • Mfr. Part No. 1SDA067341R1 Ekip LSI In=25A XT2 4p
Each
TWD40,700.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 20A, Breaking Capacity 7.5 kA, Fixed Mount
  • RS Stock No. 259-419
  • Mfr. Part No. 281245 NZMN1-4-A20
Each
TWD21,341.00(exc. GST)
Eaton xEffect RCCB, 25A, 4 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 248-945
  • Mfr. Part No. 187438 FRCMM-25/4/03-S/F
Each
TWD10,335.00(exc. GST)
ABB S402M MCB, 2P, 25A Curve C, 440V AC, 12V DC, 15 kA Breaking Capacity
  • RS Stock No. 140-365
  • Mfr. Part No. 2CCS572001R0254
Each
TWD7,470.00(exc. GST)
Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4870
  • Mfr. Part No. 3VA2580-7MQ32-0AA0
Each
TWD476,716.00(exc. GST)
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-413
  • Mfr. Part No. 3VA5325-6EF31-0AA0
Each
TWD73,181.00(exc. GST)
Schneider Electric ComPact Mechanical Interlock Kit for use with ComPact NSX Circuit Breaker
  • RS Stock No. 247-1754
  • Mfr. Part No. 32609
Each
TWD62,096.00(exc. GST)
Schneider Electric, PowerPact MCCB 1P 50A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 341-559
  • Mfr. Part No. BDF16050
Each
TWD17,201.00(exc. GST)
ABB S802N MCB, 2P, 25A Curve B, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-618
  • Mfr. Part No. 2CCS892001R0255
Each
TWD14,161.00(exc. GST)
Better World
Siemens SENTRON 5SY5 MCB, 2P, 4A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6674
  • Mfr. Part No. 5SY5204-7
Each
TWD3,740.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Dip LI, 3 channels
  • RS Stock No. 259-4202
  • Mfr. Part No. 1SDA072321R1
Each
TWD263,161.00(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 160A 3VA2, 4 channels
  • RS Stock No. 157-091
  • Mfr. Part No. 3VA2116-5HM46-0AA0
Each
TWD76,320.00(exc. GST)
Eaton xEffect FAZ MCB, 1P, 40A Curve D, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-699
  • Mfr. Part No. 102116 FAZ-D40/1-NA
Each
TWD3,054.00(exc. GST)
Eaton Eaton xEnergy Safety Base for use with CI Floor Standing Distribution Board
  • RS Stock No. 243-854
  • Mfr. Part No. 079611 SS5-ID0375
Each
TWD3,785.00(exc. GST)
Eaton xEffect MCB, 1P, 4A Curve B
  • RS Stock No. 230-0912
  • Mfr. Part No. 177380 FAZ6-B4/1
Each
TWD746.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 110A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-185
  • Mfr. Part No. 3VA5111-4EC41-0AA0
Each
TWD25,276.00(exc. GST)
ABB S804C MCB, 4P, 16A Curve K, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 140-494
  • Mfr. Part No. 2CCS884001R0467
Each
TWD22,732.00(exc. GST)
ABB S801S MCB, 1P, 16A, UC-K, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 141-036
  • Mfr. Part No. 2CCS861001R1467
Each
TWD10,604.00(exc. GST)
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