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
RCDs
RCDs
Surge Protection Devices
Surge Protection Devices
Thermal Breakers
Thermal Breakers

39184 Products showing for Circuit Breakers

145 of 999+
Temporarily out of stock
Allen Bradley 1492-GS 1492-GS MCB, 1P, 20A, Type G
  • RS Stock No. 218-8610
  • Mfr. Part No. 1492-GS1G200
Each
€100.64(exc. VAT)
Temporarily out of stock
ABB Distribution Board
  • RS Stock No. 237-5944
  • Mfr. Part No. 188T3PB3MD
Each
€4,774.13(exc. VAT)
Temporarily out of stock
ABB S800U MCB, 1P, 15A Curve K, 240V AC, 30 kA Breaking Capacity
  • RS Stock No. 140-449
  • Mfr. Part No. 2CCS881017R0457
Each
€107.18(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3759
  • Mfr. Part No. 3VA2040-6KQ42-0AA0
Each
€1,632.36(exc. VAT)
Temporarily out of stock
Weidmuller Three Phase Surge Arrester, 1kA, 10kV, DIN Rail Mount
  • RS Stock No. 249-3329
  • Mfr. Part No. 1070230000
Each
€36.88(exc. VAT)
Temporarily out of stock
ABB 2CCS MCB, 4P, 125A, 50 KA Breaking Capacity
  • RS Stock No. 140-867
  • Mfr. Part No. 2CCS864001R1647
Each
€730.31(exc. VAT)
Temporarily out of stock
Schneider Electric MasterPact External Current Sensor for use with Circuit Breakers
  • RS Stock No. 245-015
  • Mfr. Part No. 34036
Each
€1,263.67(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 211-9604
  • Mfr. Part No. 5SU1354-3KK25
Each
€188.74(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 50A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 345-084
  • Mfr. Part No. NHGL36050
Each
€1,377.74(exc. VAT)
Temporarily out of stock
Allen Bradley Bulletin 1694 Electronic Circuit Protection (ECP) Electronic Circuit breaker 3A 1694-PMD, 2 channels
  • RS Stock No. 236-8715
  • Mfr. Part No. 1694-PMD233-CL2
Each
€104.28(exc. VAT)
In Stock
Schneider Electric, ComPacT NSX MCCB 4P 160A, Fixed Mount
  • RS Stock No. 254-6346
  • Mfr. Part No. C16F4
Each
€739.02(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 125A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-523
  • Mfr. Part No. 3VA5112-1MH31-0AA0
Each
€698.32(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 4kA , 4 channels , Withdrawable
  • RS Stock No. 132-917
  • Mfr. Part No. 183809 IZMX40H4-V40W-1
Each
€36,236.00(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8746
  • Mfr. Part No. 5SU1354-6LB10
Each
€272.02(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip G Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-3437
  • Mfr. Part No. 1SDA071380R1
Each
€9,165.35(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 257-403
  • Mfr. Part No. 3VA5340-7EF41-2AA0
Each
€2,537.69(exc. VAT)
In Stock
Murrelektronik Limited Mico Pro Circuit Breaker
  • RS Stock No. 285-5883
  • Mfr. Part No. 9000-41014-0400000
Each
€136.95(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0287
  • Mfr. Part No. 8GK1061-4KK20
Each
€1,364.23(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 400A, Breaking Capacity 20 kA, Fixed Mount
  • RS Stock No. 347-123
  • Mfr. Part No. C40H47E400
Each
€12,225.82(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 270-049
  • Mfr. Part No. 3VA6110-7HM41-0AA0
Each
€1,254.77(exc. VAT)
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