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

261 of 999+
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 2P 30A, Breaking Capacity 85 KA
  • RS Stock No. 119-603
  • Mfr. Part No. C10M2TM030
Each
TWD23,280.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 25A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type D, FRBdM Range
  • RS Stock No. 121-245
  • Mfr. Part No. 168227 FRBDM-D25/2/01-G/A
Each
TWD8,412.00(exc. GST)
Temporarily out of stock
ABB S304 MCB, 4P, 4A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 203-738
  • Mfr. Part No. 2CDS384001R0044
Each
TWD18,998.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 3m, 400A, KS Series
  • RS Stock No. 219-8921
  • Mfr. Part No. KSA400ED4306
Each
TWD90,749.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 150A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-899
  • Mfr. Part No. 3VA5215-5EC31-2AA0
Each
TWD59,579.00(exc. GST)
In Stock
Osram Surge Protector, 15A, 20kV, Screw Mount Mount
  • RS Stock No. 251-5285
  • Mfr. Part No. SPD-20-275-G2
Each
TWD539.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric ComPact NSX100 Front Plate for use with ComPact NSX
  • RS Stock No. 219-9360
  • Mfr. Part No. LV429525
Each
TWD1,896.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 2 Phase Busbar, 27mm Pitch
  • RS Stock No. 187-5165
  • Mfr. Part No. 5ST3611
Each
TWD369.00(exc. GST)
In Stock
Murrelektronik Limited Electronic Circuit Breaker
  • RS Stock No. 123-6691
  • Mfr. Part No. 9000-41034-0401005
Each
TWD10,333.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 3VA9 Rotary Operator for use with 3VA15/25 1000
  • RS Stock No. 218-1867
  • Mfr. Part No. 3VA9687-0EK11
Each
TWD8,942.00(exc. GST)
Temporarily out of stock
Siemens Busbar
  • RS Stock No. 210-1775
  • Mfr. Part No. 8US1941-2AC00
Each (In a Pack of 6)
TWD890.80(exc. GST)
Temporarily out of stock
ABB F200 RCCB, 125A, 4 Pole, 500mA, Type A
  • RS Stock No. 177-5098
  • Mfr. Part No. 2CSF204201R4950
Each
TWD104,967.00(exc. GST)
Temporarily out of stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 25A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7573
  • Mfr. Part No. 2CDS252001R0255 S202-B25
Each
TWD1,598.00(exc. GST)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 35 kA, Cable Mount
  • RS Stock No. 249-235
  • Mfr. Part No. 3VA6610-6HN46-0AA0
Each
TWD386,976.00(exc. GST)
Temporarily out of stock
Siemens 8WH9130 Terminal for use with Mounting Plates
  • RS Stock No. 230-2198
  • Mfr. Part No. 8WH9130-0AA00
Each (In a Pack of 10)
TWD288.20(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 10A Curve C, 250V DC
  • RS Stock No. 772-1509
  • Mfr. Part No. A9N61508
Each
TWD2,478.00(exc. GST)
Temporarily out of stock
Eaton RCBO, 13A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBmM Range
  • RS Stock No. 123-705
  • Mfr. Part No. 170887 FRBMM-B13/2/003-LIA
Each
TWD5,703.00(exc. GST)
Temporarily out of stock
Schneider Electric, PowerPact B Circuit breaker 4P 25A, Breaking Capacity 14 KA, Clip-On
  • RS Stock No. 119-194
  • Mfr. Part No. BDL46025LU
Each
TWD47,889.00(exc. GST)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Arrester, DIN Rail Mount
  • RS Stock No. 131-800
  • Mfr. Part No. 2910476
Each
TWD11,217.00(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Power Pact Mounting Adapter for use with H- and J-Frame Mechanical Lugs
  • RS Stock No. 212-0287
  • Mfr. Part No. S37448
Each
TWD7,430.00(exc. GST)
1
261
1794
Results per page

Related links