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

35 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9611
  • Mfr. Part No. 3VA10633ED460AA0
Each
TWD17,861.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 3 kA, Plug In
  • RS Stock No. 249-024
  • Mfr. Part No. 192071 NZMS2-4-PX100/VAR-SVE
Each
TWD95,640.00(exc. GST)
Temporarily out of stock
Phoenix Contact 2 Phase Surge Protector, 40kA, DIN Rail Mount
  • RS Stock No. 201-6286
  • Mfr. Part No. 2905351
Each
TWD14,842.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 160A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9754
  • Mfr. Part No. 3VA1116-3FD42-0AA0
Each
TWD38,052.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-291
  • Mfr. Part No. 3VA6210-7KQ31-0AA0
Each
TWD151,725.00(exc. GST)
In Stock
Better World
Schneider Electric Circuit Trip
  • RS Stock No. 219-9354
  • Mfr. Part No. LV429386
Each
TWD5,004.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 80A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-632
  • Mfr. Part No. 3VA5280-6EF31-2AA0
Each
TWD45,977.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9762
  • Mfr. Part No. 3VA1116-3GE42-0AA0
Each
TWD38,731.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-1718
  • Mfr. Part No. 3VA2110-6HN42-0AA0
Each
TWD46,486.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-404
  • Mfr. Part No. 3VA5340-7GF41-0AA0
Each
TWD122,606.00(exc. GST)
In Stock
Eaton, xEnergy MCCB 3P 125A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 454-8146
  • Mfr. Part No. 259086 NZMN1-A125
Each
TWD18,877.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SJ4 MCB, 3P, 30A Curve C, 14 kA Breaking Capacity
  • RS Stock No. 202-7128
  • Mfr. Part No. 5SJ4330-7HG41
Each
TWD8,714.00(exc. GST)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 6 Way, 250 A
  • RS Stock No. 339-366
  • Mfr. Part No. SEA9BPN6
Each
TWD21,385.00(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 3A Current Rating
  • RS Stock No. 217-6369
  • Mfr. Part No. 2800871
Each
TWD3,084.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Terminal for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9390
  • Mfr. Part No. 3VA9403-0QE00
Each
TWD6,070.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4092
  • Mfr. Part No. 3VA2116-7HM32-0AA0
Each
TWD68,748.00(exc. GST)
Temporarily out of stock
Phoenix Contact EC-E4 Electronic Circuit breaker 8A 24V EC-E4 8A, 1 channels , DIN Rail Mount
  • RS Stock No. 801-6952
  • Mfr. Part No. 0903037
Each (In a Pack of 6)
TWD3,282.80(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - CB TM2 2 Pole 80V dc Voltage Rating, 4A Current Rating
  • RS Stock No. 217-6370
  • Mfr. Part No. 2800872
Each
TWD3,084.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4073
  • Mfr. Part No. 3VA2116-6HM42-0AA0
Each
TWD81,281.00(exc. GST)
Temporarily out of stock
Hager MMN MCB, 3P, 63A, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 602-133
  • Mfr. Part No. MMN363
Each
TWD24,082.00(exc. GST)
Results per page
1
35
1794