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 產品顯示為 Circuit Breakers

1678 of 999+
Temporarily out of stock
Siemens SENTRON 5SY8 MCB, 1P, 3A Curve D, 400V AC, 60V DC, 50 kA Breaking Capacity
  • RS Stock No. 610-451
  • Mfr. Part No. 5SY8103-8
Each
TWD2,087.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9744
  • Mfr. Part No. 3VA1112-6FF46-0AA0
Each
TWD44,830.00(exc. GST)
In Stock
Schneider Electric RCBO, 16A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-839
  • Mfr. Part No. A9DC3716
Each
TWD7,706.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Base for use with ALPHA 630 DIN
  • RS Stock No. 629-057
  • Mfr. Part No. 8GK9900-0KK23
Each
TWD7,175.00(exc. GST)
Temporarily out of stock
Better World
ABB S200C MCB, 3P, 20A Curve C, 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-1647
  • Mfr. Part No. 2CDS253280R0204
Each
TWD2,535.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 1+N, 3.5A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 256-928
  • Mfr. Part No. 278639 FAZ-B3,5/1N
Each
TWD2,268.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 3VA9 Wire Connector for use with 3VA2 100/160/250
  • RS Stock No. 218-1841
  • Mfr. Part No. 3VA9264-0QB00
Each
TWD3,132.00(exc. GST)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 320A, Fixed Mount
  • RS Stock No. 250-4129
  • Mfr. Part No. 1SDA054394R1
Each
TWD244,804.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 25A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 253-665
  • Mfr. Part No. 269144 NZMB2-AF25-NA
Each
TWD19,119.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 35A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-872
  • Mfr. Part No. 3VA5235-5ED31-2AA0
Each
TWD35,903.00(exc. GST)
Temporarily out of stock
Schneider Electric, Powerpact Circuit breaker 2P 45A, Breaking Capacity 65 kA, Clip-On
  • RS Stock No. 444-303
  • Mfr. Part No. BJL26045LU
Each
TWD32,978.00(exc. GST)
Temporarily out of stock
Eaton Distribution Parts Undervoltage Release for use with MCB
  • RS Stock No. 252-944
  • Mfr. Part No. 212053 FAZ-XUA(400VAC)
Each
TWD3,536.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-172
  • Mfr. Part No. 3VA5110-6EF31-0AA0
Each
TWD24,825.00(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3P, 13A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 248-627
  • Mfr. Part No. 102248 FAZ-C13/3-NA
Each
TWD7,625.00(exc. GST)
Temporarily out of stock
Schneider Electric BDF Thermal Circuit Breaker - PowerPacT 4 Pole 525V ac Voltage Rating Clip-On, 30A Current Rating
  • RS Stock No. 335-095
  • Mfr. Part No. BDF46030
Each
TWD17,653.00(exc. GST)
Temporarily out of stock
Eaton Eaton Moeller xPole 3 Phase Busbar, 415V
  • RS Stock No. 257-775
  • Mfr. Part No. 291487 EVG-16/3X1PHAS/6MODUL/HI
Each
TWD487.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 13A Current Rating, 4P Poles, 100mA Trip Sensitivity, Type A, Type D, FRBm6 Range
  • RS Stock No. 123-363
  • Mfr. Part No. 170940 FRBM6-D13/3N/01-A
Each
TWD9,027.00(exc. GST)
Temporarily out of stock
ABB, Tmax MCCB 4P 320A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 237-5955
  • Mfr. Part No. 1SDA054129R1 T4S320 FF PR221-LS 320A
Each
TWD56,174.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0773
  • Mfr. Part No. 3WA9111-0AL26
Each
TWD9,270.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 IC60L MCB, 1P, 6A Curve K, 230V AC, 72V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0142
  • Mfr. Part No. A9F95106
Each
TWD3,777.00(exc. GST)
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