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

32 of 999+
Temporarily out of stock
Hager BFH Series RCCB, 40A, 3 Pole, 300mA, Type A-HI
  • RS Stock No. 597-989
  • Mfr. Part No. BFH440F
Each
TWD16,213.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti 9 RCD
  • RS Stock No. 219-9027
  • Mfr. Part No. A9N26948
Each
TWD4,012.00(exc. GST)
Temporarily out of stock
ABB, SACE FORMULA MCCB Molded Case Circuit Breaker 1P 20A, Fixed Mount
  • RS Stock No. 231-9291
  • Mfr. Part No. 1SDA066686R1 / A1N 125 TMF 20-400 1p F F
Each
TWD5,464.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 1P 60A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-677
  • Mfr. Part No. 3VA5160-4ED11-0AA0
Each
TWD8,215.00(exc. GST)
Temporarily out of stock
Schneider Electric PowerPact 3 Phase Distribution Board, 18 Way, 800 A
  • RS Stock No. 339-295
  • Mfr. Part No. MG8C18T
Each
TWD350,616.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board, 24 Way, 125 A
  • RS Stock No. 207-329
  • Mfr. Part No. SE125A24
Each
TWD14,878.00(exc. GST)
In Stock
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 32A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-677
  • Mfr. Part No. SE10C332
Each
TWD4,420.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4155
  • Mfr. Part No. 3VA1110-3EF36-0AA0
Each
TWD18,864.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 3VA9 Mounting Frame for use with 3VA2 100/160/250
  • RS Stock No. 218-1807
  • Mfr. Part No. 3VA9163-0SB10
Each
TWD2,022.00(exc. GST)
Temporarily out of stock
Hager NSN MCB, 2P, 10A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-951
  • Mfr. Part No. NSN210
Each
TWD7,904.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti 9 C120N MCB, 2P, 80A Curve C, 440V AC, 250V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3054
  • Mfr. Part No. A9N18361
Each
TWD11,071.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SY4 MCB, 2P, 13A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 209-7513
  • Mfr. Part No. 5SY4213-7
Each
TWD2,654.00(exc. GST)
In Stock
Better World
Siemens SENTRON 5SY4 MCB, 1+N, 500mA Curve C, 230V AC, 72V DC, 5 kA Breaking Capacity
  • RS Stock No. 212-8953
  • Mfr. Part No. 5SY4505-7
Each
TWD2,637.00(exc. GST)
Temporarily out of stock
Hager NSN MCB, 3P, 6A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 597-907
  • Mfr. Part No. NSN306
Each
TWD13,169.00(exc. GST)
In Stock
Siemens SIRIUS Auxiliary Contact for use with Circuit Breaker 3RV2
  • RS Stock No. 272-0034
  • Mfr. Part No. 3RV29012C
Each
TWD703.00(exc. GST)
Temporarily out of stock
Hager CDS RCD Switch, 40A, 2 Pole, 30mA, Type F, 230V
  • RS Stock No. 599-841
  • Mfr. Part No. CDS740F
Each
TWD5,816.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 10A Curve K, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 514-0131
  • Mfr. Part No. 2CDS251001R0427 S201-K10
Each
TWD807.00(exc. GST)
Temporarily out of stock
Better World
Siemens Sentron 5SY4 MCB, 4P, 40A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 124-3206
  • Mfr. Part No. 5SY4440-8
Each
TWD8,872.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 239-852
  • Mfr. Part No. 192264 NZMN3-PX250-SVE
Each
TWD122,776.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB 3P 40A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 219-8306
  • Mfr. Part No. BGL36040LU
Each
TWD31,253.00(exc. GST)
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