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

39187 Products showing for Circuit Breakers

17 of 999+
In Stock
Eaton 3 Phase Surge Protector, 15kA, 110 → 230 V dc, 110 → 415V ac, DIN Rail Mount
  • RS Stock No. 847-3677
  • Mfr. Part No. 102036 FAZ-XAA-NA110-415VAC
Each
€39.97(exc. VAT)
In Stock
ABB F200 RCCB, 25A, 4 Pole, 30mA, Type A, 110V ac
  • RS Stock No. 177-5069
  • Mfr. Part No. 2CSF204199R1250 F204 A-25/0,03 110V
Each
€203.02(exc. VAT)
In Stock
ABB PS3 3 Phase Busbar, 400V
  • RS Stock No. 231-9641
  • Mfr. Part No. 2CDL230001R1060 PS3/60
1 Box of 1
€81.30(exc. VAT)
In Stock
Eaton RCD, 25A, 4 Pole, 300mA, Type AC
  • RS Stock No. 922-8623
  • Mfr. Part No. 235408 PFIM-25/4/03-MW
Each
€144.22(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 10A Current Rating, 2P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 790-9248
  • Mfr. Part No. A9D11210
Each
€233.83(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 10A Current Rating, 1P Poles, 30mA Trip Sensitivity, Resi9 Range
  • RS Stock No. 247-2230
  • Mfr. Part No. R9D01610
Each
€66.86(exc. VAT)
Temporarily out of stock
Schneider Electric 12 Way Split Load Metal Consumer Unit, 63A, IP2X, IP3X R9H
  • RS Stock No. 335-285
  • Mfr. Part No. R9HMSR6R6
Each
€488.98(exc. VAT)
In Stock
Better World
Schneider Electric TeSys Deca Motor Protection Circuit Breaker - 3 Pole 690V Voltage Rating, 32A Current Rating
  • RS Stock No. 256-4177
  • Mfr. Part No. GV3P321
Each
€311.06(exc. VAT)
In Stock
Better World
Schneider Electric iID RCCB, 63A, 4 Pole, 300mA, Type B-SI, 400V ac
  • RS Stock No. 248-3725
  • Mfr. Part No. A9Z64463
Each
€1,014.68(exc. VAT)
Temporarily out of stock
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti9 Range
  • RS Stock No. 339-509
  • Mfr. Part No. SEE110B03
Each
€158.52(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 20A Curve B, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3168
  • Mfr. Part No. A9F53120
Each
€23.14(exc. VAT)
In Stock
Better World
Siemens Sentron 5SY4 MCB, 3P, 25A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1381
  • Mfr. Part No. 5SY4325-8
Each
€99.77(exc. VAT)
In Stock
Better World
ABB System Pro M Compact S200 MCB, 1P, 63A Curve D, 253V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 527-9532
  • Mfr. Part No. 2CDS251001R0631 S201-D63
Each
€22.30(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6345
  • Mfr. Part No. C16F3TM160
Each
€1,024.62(exc. VAT)
In Stock
Schneider Electric Acti9 Busbar, 440V ac, 18mm Pitch
  • RS Stock No. 466-546
  • Mfr. Part No. A9XPH318
1 Pack of 5
€294.56(exc. VAT)
In Stock
Eaton RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, PXK Range
  • RS Stock No. 183-3546
  • Mfr. Part No. 236965 PXK-C20/1N/003-A
Each
€76.97(exc. VAT)
In Stock
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 12A Current Rating
  • RS Stock No. 782-7962
  • Mfr. Part No. W58-XB1A4A-12
Each
€8.15(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 32A Current Rating, 3P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 238-3269
  • Mfr. Part No. A9DA7732
Each
€302.10(exc. VAT)
In Stock
Siemens ALPHA Busbar
  • RS Stock No. 226-0831
  • Mfr. Part No. 8GK9733-0KK10
Each
€44.20(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Compact NSX, Easy Pact CVS, FuPact INFB Crimp Lug for use with For copper cable 300 mm2
  • RS Stock No. 219-9402
  • Mfr. Part No. LV432503
Each
€102.62(exc. VAT)
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