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

15 of 999+
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 9 kA, Withdrawable
  • RS Stock No. 249-052
  • Mfr. Part No. 192265 NZMH3-PX250-AVE
Each
TWD154,058.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 2P 175A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-485
  • Mfr. Part No. 3VA5217-6ED61-0AA0
Each
TWD55,968.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-649
  • Mfr. Part No. 3VA6210-7HL31-2AA0
Each
TWD97,357.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4719
  • Mfr. Part No. 3VA2163-6HM46-0AA0
Each
TWD56,195.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 60A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-675
  • Mfr. Part No. 3VA5160-4EC41-0AA0
Each
TWD21,304.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 249-032
  • Mfr. Part No. 192138 NZMH2-PX250-BT
Each
TWD104,589.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-3722
  • Mfr. Part No. 3VA2025-8KQ36-0AA0
Each
TWD87,024.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 36 kA
  • RS Stock No. 210-1626
  • Mfr. Part No. 3VA1116-4EE32-0AA0
Each
TWD32,473.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-524
  • Mfr. Part No. 3VA5112-1MU31-0AA0
Each
TWD42,280.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 80A, Breaking Capacity 55 kA
  • RS Stock No. 209-7015
  • Mfr. Part No. 3VA1180-5EF32-0AA0
Each
TWD18,872.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 32A, Breaking Capacity 25 kA
  • RS Stock No. 209-6739
  • Mfr. Part No. 3VA1032-3ED32-0AA0
Each
TWD12,890.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 16A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9452
  • Mfr. Part No. 3VA1196-3GF46-0AA0
Each
TWD20,702.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 85 kA
  • RS Stock No. 209-7066
  • Mfr. Part No. 3VA2116-6HN42-0AA0
Each
TWD69,271.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4121
  • Mfr. Part No. 1SDA072228R1
Each
TWD306,624.00(exc. GST)
Temporarily out of stock
Eaton xEffect RCCB, 40A, 2 Pole, 300mA, Type F, 240V ac
  • RS Stock No. 246-771
  • Mfr. Part No. 187397 FRCMM-40/2/03-S/F
Each
TWD10,064.00(exc. GST)
Temporarily out of stock
Schneider Electric C120 RCD, 125A, 300mA
  • RS Stock No. 776-2869
  • Mfr. Part No. A9N18560
Each
TWD53,746.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 25 kA
  • RS Stock No. 209-6969
  • Mfr. Part No. 3VA1112-3EF32-0AA0
Each
TWD27,195.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 20A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9829
  • Mfr. Part No. 3VA1120-5ED46-0AA0
Each
TWD21,830.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 110A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-195
  • Mfr. Part No. 3VA5111-4GC41-0AA0
Each
TWD26,540.00(exc. GST)
Temporarily out of stock
Hager BD RCCB, 63A, 4P Pole, 30mA, Type AC
  • RS Stock No. 602-054
  • Mfr. Part No. BD466
Each
TWD22,615.00(exc. GST)
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