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

1656 of 999+
In Stock
Better World
Schneider Electric iID RCCB, 40A, 4 Pole, 300mA
  • RS Stock No. 734-9355
  • Mfr. Part No. A9R14440
Each
TWD8,188.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 271-9661
  • Mfr. Part No. 3VA11104FF420AA0
Each
TWD24,394.00(exc. GST)
Temporarily out of stock
Siemens ALPHA Terminal
  • RS Stock No. 226-2883
  • Mfr. Part No. 8JK406
Each (In a Pack of 5)
TWD4,059.80(exc. GST)
In Stock
Lovato ModuLo P1MB MCB, 1+N, 6A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 825-5517
  • Mfr. Part No. P1MB1NC06
Each
TWD1,665.00(exc. GST)
Temporarily out of stock
ABB Tmax XT Rear Terminal for use with XT3
  • RS Stock No. 237-6170
  • Mfr. Part No. 1SDA066945R1 R XT3 3PCS
Each
TWD2,525.00(exc. GST)
Temporarily out of stock
Eaton NZMH3 Electronic Circuit Breaker 500A , 3 channels , Fixed
  • RS Stock No. 120-677
  • Mfr. Part No. 168919 NZMH3-S500-SVE
Each
TWD129,908.00(exc. GST)
Temporarily out of stock
ABB F200 RCCB, 100A, 2 Pole, 100mA, Type A, 277V ac
  • RS Stock No. 177-5077
  • Mfr. Part No. 2CSF202201R2900
Each
TWD11,355.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 1.25kA, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4891
  • Mfr. Part No. 3VA2612-6JP32-0AA0
Each
TWD605,380.00(exc. GST)
Temporarily out of stock
Better World
Siemens SIRIUS Adapter for use with M20/M25 Cable Entry
  • RS Stock No. 271-9528
  • Mfr. Part No. 3SU19000JM100AA0
Each
TWD4,871.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 25A, Breaking Capacity 65 kA, Screw Mount
  • RS Stock No. 207-252
  • Mfr. Part No. BGL36025LU
Each
TWD20,062.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-678
  • Mfr. Part No. 3VA5212-5GD41-0AA0
Each
TWD52,111.00(exc. GST)
Temporarily out of stock
Eaton PKE System-Protective Circuit-Breaker Electronic Circuit Breaker 12A , Fixed
  • RS Stock No. 120-827
  • Mfr. Part No. 158243 PKE12/AK/XTU-12
Each
TWD6,278.00(exc. GST)
In Stock
Schneider Electric RCBO, 32A Current Rating, 1P Poles, Type C, Acti9 Range
  • RS Stock No. 207-394
  • Mfr. Part No. A9D05832
Each
TWD6,761.00(exc. GST)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 2P, 10A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1300
  • Mfr. Part No. 5SY4210-6
Each
TWD2,573.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 40A, Fixed Mount
  • RS Stock No. 260-7619
  • Mfr. Part No. C11H3TM040B
Each
TWD26,559.00(exc. GST)
Temporarily out of stock
Siemens SENTRON 5SY7 MCB, 2P, 300mA Curve D, 400V AC, 50 kA Breaking Capacity
  • RS Stock No. 610-648
  • Mfr. Part No. 5SY7214-8
Each
TWD4,942.00(exc. GST)
Temporarily out of stock
Legrand DX3 RCD, 40A, 3+N Pole, 30mA, Type AC
  • RS Stock No. 732-0017
  • Mfr. Part No. 4 111 90
Each
TWD25,327.00(exc. GST)
Temporarily out of stock
Schneider Electric MasterPacT Chassis for use with Masterpact MTZ1
  • RS Stock No. 207-137
  • Mfr. Part No. LV833723
Each
TWD125,027.00(exc. GST)
In Stock
Okaya Electric Industries 3 Phase Surge Protector, 5kA, Surface Mount Mount
  • RS Stock No. 190-2022
  • Mfr. Part No. SV275DA-U4
Each
TWD2,470.00(exc. GST)
Temporarily out of stock
ABB S800S MCB, 3P, 32A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-181
  • Mfr. Part No. 2CCS863001R0537
Each
TWD30,064.00(exc. GST)
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