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

1668 of 999+
In Stock
Better World
Siemens SENTRON 5SY6 MCB, 3P, 10A Curve B, 6 kA Breaking Capacity
  • RS Stock No. 203-2354
  • Mfr. Part No. 5SY6310-6
Each
TWD2,758.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller xPole 3 Phase Busbar, 415V
  • RS Stock No. 259-329
  • Mfr. Part No. 291478 EVG-16/3PHAS/N/8MODUL/LS
Each
TWD728.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SV60 MCB, 2P, 20A Curve B, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 328-332
  • Mfr. Part No. 5SV6016-6KP20
Each
TWD7,740.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 630A, Fixed Mount
  • RS Stock No. 250-4134
  • Mfr. Part No. 1SDA054401R1
Each
TWD161,168.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SY4 MCB, 1P, 4A Curve B, 10 kA Breaking Capacity
  • RS Stock No. 202-7143
  • Mfr. Part No. 5SY4104-6
Each
TWD2,090.00(exc. GST)
Temporarily out of stock
ABB S800S MCB, 4P, 20A Curve C, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-715
  • Mfr. Part No. 2CCS864001R0204
Each
TWD32,526.00(exc. GST)
Temporarily out of stock
ABB SU200 M MCB, 1P, 8A Curve C, 277V AC, 48V DC, 15 kA Breaking Capacity
  • RS Stock No. 200-589
  • Mfr. Part No. 2CDS271337R0084
Each
TWD3,583.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 90A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 269-809
  • Mfr. Part No. 3VA5290-7EC31-1AA0
Each
TWD43,295.00(exc. GST)
In Stock
Eaton xEffect MCB, 2P, 15A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 847-3504
  • Mfr. Part No. 278782 FAZ-D15/2
Each
TWD2,237.00(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-3279
  • Mfr. Part No. 1SDA071177R1
Each
TWD910,216.00(exc. GST)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 4P, 40A Curve D, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7930
  • Mfr. Part No. 2CDS254001R0401 S204-D40
Each
TWD6,645.00(exc. GST)
In Stock
Legrand DX Range DX3 MCB, 2P, 6A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 731-9708
  • Mfr. Part No. 4 077 80
Each
TWD4,576.00(exc. GST)
Temporarily out of stock
ABB Copper Copper Bar for Use with TriLine
  • RS Stock No. 237-6605
  • Mfr. Part No. 2CPX061424R9999
1 Box of 1
TWD19,513.00(exc. GST)
Temporarily out of stock
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 173-9823
  • Mfr. Part No. 4400.001
Each (In a Box of 100)
TWD227.90(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 500mA Curve C, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-5985
  • Mfr. Part No. 5SL4505-7
Each
TWD2,696.00(exc. GST)
Temporarily out of stock
ABB SU200 M MCB, 4P, 32A, Type Z, 480V AC, 15 kA Breaking Capacity
  • RS Stock No. 201-263
  • Mfr. Part No. 2CDS274337R0538
Each
TWD21,729.00(exc. GST)
In Stock
RS PRO MCB, 1P, 10A Curve C, 240 → 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 265-0188
Each
TWD284.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 25A Current Rating
  • RS Stock No. 175-1538
  • Mfr. Part No. GV4PE25B
Each
TWD20,655.00(exc. GST)
Temporarily out of stock
ABB IEC Range Busbar for use with DDA200, F200, S200
  • RS Stock No. 250-4739
  • Mfr. Part No. 2CDL210002R1038
Each
TWD1,419.00(exc. GST)
Currently unavailable
ABB System Pro M Compact S200 MCB, 1P, 4A Curve B, 230/400V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-712
  • Mfr. Part No. 2CDS251001R0045
Each
TWD3,442.00(exc. GST)
1
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