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

270 of 999+
In Stock
Schneider Electric Motor Mechanism for use with ComPacT NSX New Generation
  • RS Stock No. 130-374
  • Mfr. Part No. LV429435
Each
TWD35,985.00(exc. GST)
Temporarily out of stock
ABB System Pro M Compact S300P MCB, 3+N, 3A Curve K, 415V AC, 100 kA Breaking Capacity
  • RS Stock No. 200-343
  • Mfr. Part No. 2CDS383103R0317
Each
TWD23,512.00(exc. GST)
In Stock
Eaton MCB, 1+N, 20A Curve C
  • RS Stock No. 230-1078
  • Mfr. Part No. 264747 PLG4-C20/1N
Each
TWD468.00(exc. GST)
Temporarily out of stock
Hager Thermal Circuit Breaker - HAD 2P Pole Fixed, 60A Current Rating
  • RS Stock No. 602-097
  • Mfr. Part No. HDA260F
Each
TWD7,876.00(exc. GST)
Temporarily out of stock
Schneider Electric Feed Unit, KSC25 Series
  • RS Stock No. 207-237
  • Mfr. Part No. KSC250AB4
Each
TWD44,076.00(exc. GST)
Temporarily out of stock
Siemens SENTRON External Current Sensor
  • RS Stock No. 277-0703
  • Mfr. Part No. 3WA9111-0AA22
Each
TWD27,544.00(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-567
  • Mfr. Part No. 3VA5180-5EF41-0AA0
Each
TWD24,127.00(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 1kA, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 341-204
  • Mfr. Part No. C100N420FM
Each
TWD411,684.00(exc. GST)
Temporarily out of stock
Eaton PFR RCCB, 25A, 4 Pole, 3mA, Type A, 230/400V ac
  • RS Stock No. 255-060
  • Mfr. Part No. 235864 PFR2-03-S/A
Each
TWD10,230.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Trip Unit for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 266-658
  • Mfr. Part No. 3VW9017-5AA00
Each
TWD96,936.00(exc. GST)
Temporarily out of stock
Electronic Circuit Breaker 4A 24V , 1 channels , DIN Rail
  • RS Stock No. 262-477
  • Mfr. Part No. PXS24E04A002 PXS24E-e4/F
Each
TWD1,422.00(exc. GST)
In Stock
Better World
Siemens 5SV3 RCCB, 25A, 4 Pole, 300mA, Type A
  • RS Stock No. 124-7739
  • Mfr. Part No. 5SV3642-6
Each
TWD5,390.00(exc. GST)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 125A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9695
  • Mfr. Part No. 3VA11123ED420AA0
Each
TWD32,628.00(exc. GST)
Temporarily out of stock
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 3 channels
  • RS Stock No. 156-743
  • Mfr. Part No. 3VA2340-5KQ32-0AF0
Each
TWD141,561.00(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4628
  • Mfr. Part No. 1SDA072898R1
Each
TWD460,530.00(exc. GST)
In Stock
FI/LS-Schalter Resi9 1P+N, 13A, B-Char.,
  • RS Stock No. 537-863
  • Mfr. Part No. R9D41613
Each
TWD9,025.00(exc. GST)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 2kA , Fixed
  • RS Stock No. 132-666
  • Mfr. Part No. 183638 IZMX40H3-P20F-1
Each
TWD705,879.00(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 2A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3372
  • Mfr. Part No. A9F54302
Each
TWD4,698.00(exc. GST)
In Stock
Eaton xPole PXL MCB, 3P, 32A Curve C, 400V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 490-315
  • Mfr. Part No. 236429 PXL-C32/3
Each
TWD1,748.00(exc. GST)
Temporarily out of stock
Eaton xEffect - FRCmM RCCB, 63A, 4 Pole, 30mA, 240/415V ac
  • RS Stock No. 123-563
  • Mfr. Part No. 170296 FRCMM-63/4/003-G/A
Each
TWD17,110.00(exc. GST)
1
270
1794
Results per page

Related links