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

1722 of 999+
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 85 kA
  • RS Stock No. 209-7069
  • Mfr. Part No. 3VA2125-6KP42-0AA0
Each
TWD79,766.00(exc. GST)
Schneider Electric Acti9 Terminal Block for use with Distribution Board
  • RS Stock No. 339-356
  • Mfr. Part No. SEA9BP
Each
TWD578.00(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 32A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3253
  • Mfr. Part No. A9F87232
Each
TWD5,229.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3603
  • Mfr. Part No. 3VA2010-8HM32-0AA0
Each
TWD55,635.00(exc. GST)
Better World
Schneider Electric Acti 9 Acti9 iDT40N XA MCB, 3P, 32A Curve C, 400V AC
  • RS Stock No. 238-3433
  • Mfr. Part No. A9PA4332
Each
TWD8,695.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 30A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-552
  • Mfr. Part No. 3VA5130-4EC31-0AA0
Each
TWD14,813.00(exc. GST)
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 32A Curve D, 440V AC, 15 kA Breaking Capacity
  • RS Stock No. 211-2405
  • Mfr. Part No. M9F23332
Each
TWD3,765.00(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 50A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-793
  • Mfr. Part No. 3VA5250-6ED41-2AA0
Each
TWD49,809.00(exc. GST)
Schneider Electric Horizontal Distribution Length, 2m, 40A, Canalis Series
  • RS Stock No. 207-225
  • Mfr. Part No. KBA40ED2203TW
Each
TWD7,598.00(exc. GST)
Better World
ABB, XT4L MCCB 3P 25A, Fixed Mount
  • RS Stock No. 236-6718
  • Mfr. Part No. 1SDA068367R1 XT4L 160 TMD 25A FF
Each
TWD30,880.00(exc. GST)
HENSEL ENYSTAR Distribution Board, 63 A
  • RS Stock No. 116-989
  • Mfr. Part No. KV 8236 M
Each
TWD6,278.00(exc. GST)
Weidmüller Surge Arrester, 20kA, 1000V dc, Screw Mount Mount
  • RS Stock No. 285-5288
  • Mfr. Part No. 2755970000
Each
TWD19,045.00(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 37 kA, Fixed Mount
  • RS Stock No. 254-545
  • Mfr. Part No. 265922 NZMH4-4-AE800/500
Each
TWD236,132.00(exc. GST)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 400A, Fixed Mount
  • RS Stock No. 232-0086
  • Mfr. Part No. 1SDA054333R1 T5S400 FF PR221-LS 400A
Each
TWD54,343.00(exc. GST)
Schneider Electric, Compact MCCB 3P 1.6kA, Fixed Mount
  • RS Stock No. 247-1767
  • Mfr. Part No. 33260
Each
TWD163,960.00(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.25kA 1SDA07, 4 channels
  • RS Stock No. 259-4568
  • Mfr. Part No. 1SDA072815R1
Each
TWD205,409.00(exc. GST)
Sensata Airpax Airpax Thermal Circuit Breaker - CPP Single Pole Panel Mount, 5A Current Rating
  • RS Stock No. 275-0188
  • Mfr. Part No. CPP11-52-5.00A-OC-V
Each
TWD793.00(exc. GST)
Murrelektronik Limited Mico Pro Electronic Circuit Breaker 10A 24V 9000, 2 channels , DIN Rail
  • RS Stock No. 284-8054
  • Mfr. Part No. 9000-41092-0101000
Each
TWD3,522.00(exc. GST)
ABB IEC Range Busbar for use with DDA200, F200, S200
  • RS Stock No. 250-4736
  • Mfr. Part No. 2CDL210001R1638
Each
TWD2,902.00(exc. GST)
Schneider Electric ComPacT Motor Mechanism for use with NSX250
  • RS Stock No. 429-077
  • Mfr. Part No. LV431548
Each
TWD67,889.00(exc. GST)
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