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

1923 of 999+
Temporarily out of stock
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0829
  • Mfr. Part No. 3WA9111-0AV32
1 Set
€609.56(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4527
  • Mfr. Part No. 3VA2125-6HK42-0AA0
Each
€709.79(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SP3250 MCB, 2P, 50A, Type E
  • RS Stock No. 231-8310
  • Mfr. Part No. 5SP3250-3
Each
€410.32(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-4748
  • Mfr. Part No. 1SDA073028R1
Each
€13,809.47(exc. VAT)
Temporarily out of stock
Eaton NZM DC Link Kit for use with N4-4-(800)(1000)(1250)(1400)-S1(-S15)-DC, N4-4-...-S1(-S15)-PV-NA
  • RS Stock No. 127-216
  • Mfr. Part No. 180020 NZM4-4-XKVI2P
Each
€441.00(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 4kA IZMX/INX Circuit-Breaker, 4 channels , Fixed
  • RS Stock No. 132-754
  • Mfr. Part No. 183909 IZMX40N4-V40F-1
Each
€34,299.00(exc. VAT)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2.5kA Ekip Touch LSI, 3 channels
  • RS Stock No. 259-3198
  • Mfr. Part No. 1SDA071065R1
Each
€8,655.69(exc. VAT)
Temporarily out of stock
Eaton RCBO, 13A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type D, FRBDM Range
  • RS Stock No. 120-935
  • Mfr. Part No. 168209 FRBDM-D13/2/003-G/A
Each
€182.00(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Cassette for use with INX16…4-…W, IZMX16…4-…W
  • RS Stock No. 132-945
  • Mfr. Part No. 183956 IZMX-CAS164-1600-SEC-1
Each
€2,689.00(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-4251
  • Mfr. Part No. 1SDA072376R1
Each
€7,945.41(exc. VAT)
Currently unavailable
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 25A Current Rating
  • RS Stock No. 899-1777
  • Mfr. Part No. 2E25UM
Each
€30.71(exc. VAT)
Temporarily out of stock
Lovato 1 Phase Surge Protector, 50kA
  • RS Stock No. 216-8298
  • Mfr. Part No. SG21PA300
Each
€65.98(exc. VAT)
Temporarily out of stock
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 1kA, Breaking Capacity 35 kA, Cable Mount
  • RS Stock No. 249-174
  • Mfr. Part No. 3VA6610-6KL46-0AA0
Each
€8,714.71(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-552
  • Mfr. Part No. 3VA6580-5KT42-0AA0
Each
€6,685.73(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 630A Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-4008
  • Mfr. Part No. 1SDA072067R1
Each
€5,951.53(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3954
  • Mfr. Part No. 3VA2110-6HM36-0AA0
Each
€931.43(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4657
  • Mfr. Part No. 3VA2140-7HN36-0AA0
Each
€972.37(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 271-9592
  • Mfr. Part No. 3VA10403ED360AA0
Each
€203.47(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-8055
  • Mfr. Part No. C25W45E100
Each
€4,042.88(exc. VAT)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 3.2kA 1SDA07, 4 channels
  • RS Stock No. 259-3796
  • Mfr. Part No. 1SDA071801R1
Each
€20,780.27(exc. VAT)
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