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

1845 of 999+
Eaton IZMX16H4-P06F-1 Electronic Circuit Breaker 630A , Fixed
  • RS Stock No. 127-744
  • Mfr. Part No. 183452 IZMX16H4-P06F-1
Each
€9,272.00(exc. VAT)
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Plug In
  • RS Stock No. 122-467
  • Mfr. Part No. LV510443P
Each
€184.88(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 55 kA
  • RS Stock No. 209-6906
  • Mfr. Part No. 3VA2110-5HM32-0AA0
Each
€803.78(exc. VAT)
Eaton IZMX16N4-P08W-1 Electronic Circuit Breaker 800A , DIN Rail
  • RS Stock No. 127-725
  • Mfr. Part No. 183408 IZMX16N4-P08W-1
Each
€8,474.00(exc. VAT)
Better World
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-3308
  • Mfr. Part No. 1SDA071216R1
Each
€20,482.95(exc. VAT)
Siemens SENTRON Protection Module for use with 5SY
  • RS Stock No. 211-9561
  • Mfr. Part No. 5SM2322-3
Each
€404.41(exc. VAT)
Sensata Airpax Airpax Thermal Circuit Breaker - IEG6 Single Pole Panel Mount, 50A Current Rating
  • RS Stock No. 275-0206
  • Mfr. Part No. IEG6-1-72-50.0-A-21-V
Each
€38.22(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-324
  • Mfr. Part No. 3VA6140-7JT41-0AA0
Each
€1,463.89(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 250A Ekip Touch LI, 4 channels
  • RS Stock No. 259-3391
  • Mfr. Part No. 1SDA071324R1
Each
€5,951.53(exc. VAT)
Siemens ALPHA Assembly Kit for use with Terminal Block
  • RS Stock No. 629-204
  • Mfr. Part No. 8GK4003-8KK13
Each
€231.90(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 5kA 1SDA07, 4 / f channels
  • RS Stock No. 259-3940
  • Mfr. Part No. 1SDA071985R1
Each
€36,456.31(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 3.2kA 1SDA07, 4 channels
  • RS Stock No. 259-3804
  • Mfr. Part No. 1SDA071809R1
Each
€25,719.29(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 4 channels
  • RS Stock No. 259-3592
  • Mfr. Part No. 1SDA071569R1
Each
€10,786.59(exc. VAT)
Phoenix Contact 1 Phase Surge Protector, 30kA, 2500V (Volts), DIN Rail Mount
  • RS Stock No. 131-212
  • Mfr. Part No. 2910388
Each
€91.08(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4214
  • Mfr. Part No. 1SDA072334R1
Each
€5,451.13(exc. VAT)
Better World
Siemens SENTRON Electronic Circuit Breaker 40A 3VA2, 4 channels
  • RS Stock No. 157-421
  • Mfr. Part No. 3VA2140-8JQ46-0AA0
Each
€1,743.42(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4769
  • Mfr. Part No. 3VA2163-7MQ36-0AA0
Each
€1,155.32(exc. VAT)
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 0.8A Current Rating
  • RS Stock No. 899-1844
  • Mfr. Part No. 2G08UM
Each
€30.71(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LI, 4 channels
  • RS Stock No. 259-4545
  • Mfr. Part No. 1SDA072781R1
Each
€6,019.56(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-4252
  • Mfr. Part No. 1SDA072377R1
Each
€10,456.20(exc. VAT)
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