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

307 of 999+
Better World
Siemens SENTRON 5SY5 MCB, 2P, 1A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 209-6010
  • Mfr. Part No. 5SY5201-7
Each
€126.96(exc. VAT)
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0777
  • Mfr. Part No. 3WA9111-0AM12
Each
€53.76(exc. VAT)
Better World
Siemens SENTRON 5SL4 MCB, 3P, 25A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 209-6492
  • Mfr. Part No. 5SL4325-8
Each
€192.35(exc. VAT)
Schneider Electric Compact NSX Toggle Extention for use with Compact NSX 400/630
  • RS Stock No. 347-004
  • Mfr. Part No. LV432553T
Each
€39.70(exc. VAT)
Better World
Siemens SENTRON Cover for use with 3VA1 250
  • RS Stock No. 210-9317
  • Mfr. Part No. 3VA9211-0WF30
Each
€26.98(exc. VAT)
ABB Busbar for use with Miniature Circuit Breakers
  • RS Stock No. 250-4776
  • Mfr. Part No. 2CDL701302R1320
1 Box of 10
€53.26(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 600A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-853
  • Mfr. Part No. 3VA6460-7HM41-0AA0
Each
€3,937.08(exc. VAT)
Schneider Electric, ComPacT MCCB 1P 100A, Breaking Capacity 18 kA, Fixed Mount
  • RS Stock No. 341-504
  • Mfr. Part No. C10F1TM100
Each
€489.68(exc. VAT)
ABB S802N MCB, 2P, 20A Curve D, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 141-140
  • Mfr. Part No. 2CCS892001R0201
Each
€159.05(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 500A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-163
  • Mfr. Part No. 113536 NZMN3-4-A500-AVE
Each
€3,937.00(exc. VAT)
Eaton xEffect MCB, 1P, 100A Curve C, 230V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 251-361
  • Mfr. Part No. 211804 AZ-C100
Each
€156.00(exc. VAT)
Siemens SENTRON Plug-In Terminal for use with Circuit Breaker
  • RS Stock No. 152-881
  • Mfr. Part No. 3VA9603-0KP00
Each
€1,399.67(exc. VAT)
Siemens SENTRON Connection Unit for use with Circuit Breaker Busbar
  • RS Stock No. 269-8418
  • Mfr. Part No. 8US1613-4AU01
Each
€163.26(exc. VAT)
ABB RCBO, 50A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5072
  • Mfr. Part No. 2CSR253001R1505
Each
€373.79(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 32A, Fixed Mount
  • RS Stock No. 260-7572
  • Mfr. Part No. C11E4TM032L
Each
€480.05(exc. VAT)
Better World
ABB, Tmax XT MCCB 3P 50A, Fixed Mount
  • RS Stock No. 236-6721
  • Mfr. Part No. 1SDA068370R1 XT4L 160 TMA 50A FF
Each
€862.92(exc. VAT)
Better World
Siemens SIRIUS Electronic Circuit Breaker 65A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 159-695
  • Mfr. Part No. 3RV2431-4JA10
Each
€282.77(exc. VAT)
Siemens Sentron Connecting Terminals for use with Busbar System
  • RS Stock No. 228-8257
  • Mfr. Part No. 8US1941-2AA04
Each
€172.80(exc. VAT)
ABB MCCB Molded Case Circuit Breaker 3P 320A, Fixed Mount
  • RS Stock No. 250-4068
  • Mfr. Part No. 1SDA054334R1
Each
€1,946.82(exc. VAT)
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 2 Pole 525V ac Voltage Rating Clip-On, 25A
  • RS Stock No. 339-334
  • Mfr. Part No. BGL26025LU
Each
€366.56(exc. VAT)
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