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

209 of 999+
Temporarily out of stock
ABB S802S RCCB, 100A, 2 Pole, 690V
  • RS Stock No. 140-831
  • Mfr. Part No. 2CCS802901R0639
Each
TWD59,068.00(exc. GST)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 630A, Breaking Capacity 9 kA, Withdrawable
  • RS Stock No. 240-912
  • Mfr. Part No. 191384 NZMH3-4-VX630-T-AVE
Each
TWD209,849.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 5m, 500A, KS Series
  • RS Stock No. 219-8924
  • Mfr. Part No. KSA500ED45010
Each
TWD187,258.00(exc. GST)
In Stock
Siemens SENTRON Cover for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9401
  • Mfr. Part No. 3VA9481-0WD30
Each
TWD1,885.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 2P 50A, Breaking Capacity 35 kA, Clip-On
  • RS Stock No. 341-125
  • Mfr. Part No. BGF26050
Each
TWD26,251.00(exc. GST)
Temporarily out of stock
Legrand MCB, 3+N, 500V AC, 100 kA Breaking Capacity
  • RS Stock No. 180-6101
  • Mfr. Part No. 0 058 48
1 Box of 2
TWD5,451.00(exc. GST)
In Stock
Europa EUC3P EUC MCB, 3P, 32A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6591
  • Mfr. Part No. EUC3P32C
Each
TWD964.00(exc. GST)
Temporarily out of stock
Eaton Eaton xEnergy Main Busbar Support for use with Busbar
  • RS Stock No. 258-110
  • Mfr. Part No. 283892 XDSF16
Each
TWD4,674.00(exc. GST)
In Stock
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, SENTRON Range
  • RS Stock No. 211-9619
  • Mfr. Part No. 5SV1316-6GV16
Each (In a Pack of 12)
TWD3,800.50(exc. GST)
Temporarily out of stock
Better World
Siemens SENTRON 3VA1 MCB, 3P, 80A
  • RS Stock No. 224-7891
  • Mfr. Part No. 3VA1180-5MH36-0AA0
Each
TWD19,518.00(exc. GST)
Temporarily out of stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8744
  • Mfr. Part No. 5SU1354-6GV10
Each (In a Pack of 36)
TWD7,063.00(exc. GST)
In Stock
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 1A Current Rating
  • RS Stock No. 782-0905
  • Mfr. Part No. W28-XQ1A-1
Each
TWD297.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 50A, Breaking Capacity 55 kA
  • RS Stock No. 210-1666
  • Mfr. Part No. 3VA1150-5EE32-0AA0
Each
TWD15,619.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4703
  • Mfr. Part No. 3VA2163-0KQ46-0AA0
Each
TWD113,028.00(exc. GST)
Temporarily out of stock
Eaton Eaton xEffect SASY 60i Busbar
  • RS Stock No. 248-032
  • Mfr. Part No. 107204 BBT-CU-BAR500/720-150
Each (In a Pack of 3)
TWD3,042.70(exc. GST)
Temporarily out of stock
Siemens SENTRON Cable for use with COM060, COM800
  • RS Stock No. 210-9421
  • Mfr. Part No. 3VA9987-0TC40
Each
TWD3,053.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 225A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 428-705
  • Mfr. Part No. NJJF36225TW
Each
TWD160,273.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9362
  • Mfr. Part No. 3VA1150-5ED36-0AA0
Each
TWD16,787.00(exc. GST)
In Stock
Better World
Schneider Electric NSX Motor Mechanism for use with ComPact NSX250
  • RS Stock No. 213-1345
  • Mfr. Part No. LV431545
Each
TWD45,462.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4072
  • Mfr. Part No. 3VA2116-6HM36-0AA0
Each
TWD66,577.00(exc. GST)
1
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