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

42 of 999+
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 211-3741
  • Mfr. Part No. 3VA1163-3ED32-0AA0
Each
TWD12,841.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-505
  • Mfr. Part No. 3VA6140-6KM41-0AA0
Each
TWD110,001.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 209-5130
  • Mfr. Part No. 3VA2110-6KP36-0AA0
Each
TWD75,538.00(exc. GST)
Mersen Surge Protector, 50kA, 2000V (Volts), DIN Rail Mount
  • RS Stock No. 361-616
  • Mfr. Part No. 44120401
Each
TWD13,654.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9660
  • Mfr. Part No. 3VA11104FE460AA0
Each
TWD25,115.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-478
  • Mfr. Part No. 3VA6210-5JQ41-2AA0
Each
TWD162,683.00(exc. GST)
Siemens, SENTRON MCCB 3P 225A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 257-454
  • Mfr. Part No. 3VA5322-5EC31-2AA0
Each
TWD74,599.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4668
  • Mfr. Part No. 3VA2140-7KP32-0AA0
Each
TWD73,443.00(exc. GST)
Eaton NZM Circuit Breaker for use with Circuit Breaker
  • RS Stock No. 246-902
  • Mfr. Part No. 192319 NZMH3-4-PX250/VAR-TAZ-AVE
Each
TWD240,549.00(exc. GST)
Better World
Schneider Electric Linergy Mounting Plate for use with Busbar
  • RS Stock No. 211-8754
  • Mfr. Part No. AK5PA211N3
Each
TWD3,882.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9788
  • Mfr. Part No. 3VA1116-5FE46-0AA0
Each
TWD46,561.00(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-551
  • Mfr. Part No. 3VA6210-5JQ41-0AA0
Each
TWD151,725.00(exc. GST)
Better World
Siemens 5SV3342 RCCB, 25A, 4 Pole, 30mA, Type A, 400V ac
  • RS Stock No. 231-8378
  • Mfr. Part No. 5SV3342-6GV01
Each (In a Pack of 18)
TWD3,858.70(exc. GST)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 243-059
  • Mfr. Part No. 192166 NZMN2-PX250-SVE
Each
TWD92,520.00(exc. GST)
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 210-3324
  • Mfr. Part No. 3VA1040-3ED32-0AA0
Each
TWD12,890.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 50A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9348
  • Mfr. Part No. 3VA1150-3GD46-0AA0
Each
TWD18,515.00(exc. GST)
Siemens, SENTRON MCCB 4P 300A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-266
  • Mfr. Part No. 3VA5330-7EC41-0AA0
Each
TWD128,124.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-4925
  • Mfr. Part No. 3VA1116-5ED42-0AA0
Each
TWD45,680.00(exc. GST)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 63A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9380
  • Mfr. Part No. 3VA1163-3GD46-0AA0
Each
TWD18,515.00(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4044
  • Mfr. Part No. 3VA2110-8KP46-0AA0
Each
TWD99,978.00(exc. GST)
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