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 Products showing for Circuit Breakers

246 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LI, 4 channels
  • RS Stock No. 259-4502
  • Mfr. Part No. 1SDA072724R1
Each
TWD160,010.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LI, 3 channels
  • RS Stock No. 259-4133
  • Mfr. Part No. 1SDA072244R1
Each
TWD212,553.00(exc. GST)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-254
  • Mfr. Part No. 3VA6210-8JP31-2AA0
Each
TWD135,633.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 3P, 20A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 514-0232
  • Mfr. Part No. 2CDS253001R0487 S203-K20
Each
TWD3,555.00(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 4A Curve K, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7983
  • Mfr. Part No. 2CDS252001R0337 S202-K4
Each
TWD2,453.00(exc. GST)
Temporarily out of stock
Schneider Electric Cross Elbow Busbar Trunking, 290 → 1200mm, 630A, Canalis Series
  • RS Stock No. 335-119
  • Mfr. Part No. KSA630DMCK43F
Each
TWD126,125.00(exc. GST)
In Stock
Better World
Schneider Electric Industrial Surge Protection, 2.5kA, DIN Rail Mount
  • RS Stock No. 247-1956
  • Mfr. Part No. A9L08600
Each
TWD15,117.00(exc. GST)
In Stock
Eaton xEffect MCB, 1P, 32A Curve B, 240V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-6986
  • Mfr. Part No. 278538 FAZ-B32/1
Each
TWD846.00(exc. GST)
In Stock
Eaton Busbar Adapter, 690V
  • RS Stock No. 250-9761
  • Mfr. Part No. 142528 BBA0K-32
Each
TWD1,878.00(exc. GST)
Temporarily out of stock
ABB S403M MCB, 3P, 16A Curve K, 440V AC, 16V DC, 25 kA Breaking Capacity
  • RS Stock No. 140-598
  • Mfr. Part No. 2CCS573001R0467
Each
TWD13,528.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-583
  • Mfr. Part No. 3VA5180-6EF41-0AA0
Each
TWD30,737.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-849
  • Mfr. Part No. 3VA5225-6GD41-0AA0
Each
TWD97,041.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 211-9600
  • Mfr. Part No. 5SU1354-3KK10
Each
TWD8,211.00(exc. GST)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 4P Poles, Type B
  • RS Stock No. 237-5203
  • Mfr. Part No. 2CSR274101R1065
Each
TWD14,672.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Compact Nsx, Easypact Cvs Terminal Extention for use with Compact Nsx 100/160/250, Easypact Cvs
  • RS Stock No. 221-1187
  • Mfr. Part No. LV429308
Each
TWD2,400.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-491
  • Mfr. Part No. 3VA5110-6EC41-0AA0
Each
TWD29,338.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 260-9496
  • Mfr. Part No. C10N3MA050
Each
TWD23,215.00(exc. GST)
Temporarily out of stock
ABB Cover for use with SACE Tmax XT
  • RS Stock No. 192-0925
  • Mfr. Part No. 1SDA066664R1
Each
TWD1,691.00(exc. GST)
Temporarily out of stock
Eaton ZSD-K29 Distribution Board
  • RS Stock No. 127-347
  • Mfr. Part No. 183257 ZSD-K29
Each
TWD13,048.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 40A, Breaking Capacity 35 kA, Clip-On
  • RS Stock No. 346-796
  • Mfr. Part No. BGF26040
Each
TWD26,251.00(exc. GST)
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