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

39184 Products showing for Circuit Breakers

346 of 999+
In Stock
Better World
Schneider Electric Plug-in Base for use with NSX100, NSX100 DC, NSX160, NSX160 DC, NSX250, NSX250 DC
  • RS Stock No. 248-4111
  • Mfr. Part No. LV429288
Each
€231.22(exc. VAT)
Temporarily out of stock
Eaton 1 Phase Surge Protector, 110 → 230 V dc, 12 → 110V ac, DIN Rail Mount
  • RS Stock No. 847-3686
  • Mfr. Part No. 102037 FAZ-XAA-NA12-110VAC
Each
€39.97(exc. VAT)
Temporarily out of stock
Siemens SENTRON Interlock for use with 3VA51
  • RS Stock No. 275-981
  • Mfr. Part No. 3VA9158-0VF30
Each
€154.66(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-3561
  • Mfr. Part No. 1SDA071539R1
Each
€10,654.40(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-384
  • Mfr. Part No. 3VA5140-6EC31-0AA0
Each
€310.06(exc. VAT)
In Stock
Schurter TA36 Rocker Circuit Breaker - TA36 2 Pole 60 V dc, 277 V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 221-5635
  • Mfr. Part No. 3-128-239
Each
€20.00(exc. VAT)
Temporarily out of stock
ABB S800U MCB, 4P, 80A, Type Z, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-304
  • Mfr. Part No. 2CCS864017R0805
Each
€596.44(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-153
  • Mfr. Part No. C11N44V100L
Each
€1,713.11(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 6.3A, Fixed Mount
  • RS Stock No. 260-9493
  • Mfr. Part No. C10N3MA007
Each
€681.14(exc. VAT)
In Stock
Allen Bradley Bulletin 3 Phase Busbar, 690V, 54mm Pitch
  • RS Stock No. 213-2233
  • Mfr. Part No. 140MP-A-W545
Each
€24.72(exc. VAT)
In Stock
Hager Push Button Circuit Trip for use with Modular Devices
  • RS Stock No. 144-4651
  • Mfr. Part No. SVN332
Each
€44.08(exc. VAT)
In Stock
Better World
Schneider Electric ComPact NSX, Easy Pact CVS Cover for use with ComPact NSX, Easy Pact CVS
  • RS Stock No. 219-9409
  • Mfr. Part No. LV432594
Each
€64.83(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 2P, 10A Curve B, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5677
  • Mfr. Part No. P1MB2PB10
Each
€52.96(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9502
  • Mfr. Part No. 3VA1510-5EF32-0AA0
Each
€3,423.83(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3037
  • Mfr. Part No. 1SDA070892R1
Each
€5,021.63(exc. VAT)
Temporarily out of stock
Better World
Siemens, 0AA0 MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-6049
  • Mfr. Part No. 3VA2010-6HL42-0AA0
Each
€693.48(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 3+N, 4A Curve C, 400V AC, 72V DC
  • RS Stock No. 209-6648
  • Mfr. Part No. 5SL4604-7
Each
€168.04(exc. VAT)
In Stock
ABB Tmax XT Motor Operator for use with XT2, XT4
  • RS Stock No. 237-6083
  • Mfr. Part No. 1SDA066463R1 MOE XT2-XT4 24VDC
Each
€793.08(exc. VAT)
In Stock
Eaton xEffect - FRCmM-125 Type A RCCB, 125A, 2 Pole, 100mA, Type A, 240V ac
  • RS Stock No. 123-382
  • Mfr. Part No. 171165 FRCMM-125/2/01-A
Each
€618.00(exc. VAT)
Temporarily out of stock
Rockwell Automation 1492-SP 1492-SPM MCB, 3P, 15A Curve C
  • RS Stock No. 218-8855
  • Mfr. Part No. 1492-SPM3C150
Each
€73.30(exc. VAT)
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