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

43 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3897
  • Mfr. Part No. 3VA2063-8HN36-0AA0
Each
TWD43,884.00(exc. GST)
Temporarily out of stock
Hager CFF RCD Switch, 25A, 2 Pole, 300mA, Type F, 230V
  • RS Stock No. 599-731
  • Mfr. Part No. CFF125F
Each
TWD11,258.00(exc. GST)
Temporarily out of stock
Hager BFC RCCB, 40A, 4 Pole, 300mA, Type AC
  • RS Stock No. 602-193
  • Mfr. Part No. BFC843
Each
TWD11,405.00(exc. GST)
Temporarily out of stock
Hager BFF Series RCCB, 25A, 3 Pole, 300mA, Type F
  • RS Stock No. 597-982
  • Mfr. Part No. BFF925F
Each
TWD14,340.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 80A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9622
  • Mfr. Part No. 3VA10804ED420AA0
Each
TWD17,838.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 55 kA
  • RS Stock No. 209-6834
  • Mfr. Part No. 3VA1150-5GF46-0AA0
Each
TWD23,277.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 100A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9640
  • Mfr. Part No. 3VA11103ED220AA0
Each
TWD14,639.00(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 244-091
  • Mfr. Part No. 133073 XNNS-30X30X1300
1 Pack of 5
TWD25,595.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-209
  • Mfr. Part No. 3VA6225-5KP41-2AA0
Each
TWD159,733.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4553
  • Mfr. Part No. 3VA2125-7HL36-0AA0
Each
TWD35,922.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9604
  • Mfr. Part No. 3VA10504ED360AA0
Each
TWD13,892.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 20A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 271-9563
  • Mfr. Part No. 3VA10202ED460AA0
Each
TWD17,488.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9621
  • Mfr. Part No. 3VA10804ED360AA0
Each
TWD15,153.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 243-066
  • Mfr. Part No. 192214 NZMS2-4-PX160/VAR
Each
TWD91,540.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-438
  • Mfr. Part No. 3VA6225-5HM41-2AA0
Each
TWD124,331.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-283
  • Mfr. Part No. 3VA6210-7JQ31-0AA0
Each
TWD145,404.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-380
  • Mfr. Part No. 3VA6225-5HM31-2AA0
Each
TWD99,464.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 25A, Breaking Capacity 35 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-316
  • Mfr. Part No. 3VA5125-5ED21-0AA0
Each
TWD14,578.00(exc. GST)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Protector, 40kA, 1500V (Volts), DIN Rail Mount
  • RS Stock No. 131-486
  • Mfr. Part No. 2910361
Each
TWD2,544.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 271-9726
  • Mfr. Part No. 3VA1112-5ED42-0AA0
Each
TWD38,847.00(exc. GST)
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