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

378 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 100A, Breaking Capacity 65 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-495
  • Mfr. Part No. 3VA5110-6ED21-0AA0
Each
€359.16(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 211-3775
  • Mfr. Part No. 3VA2110-6HL42-0AA0
Each
€708.74(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Compact Cover for use with Compact NSX circuit breaker
  • RS Stock No. 211-2657
  • Mfr. Part No. LV432461
Each
€26.69(exc. VAT)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 1P Poles, Type B
  • RS Stock No. 237-5222
  • Mfr. Part No. 2CSR275051R0065
Each
€166.27(exc. VAT)
Temporarily out of stock
WEG EC-SD Busbar for use with CWB40, CWB50, CWB66, CWB80
  • RS Stock No. 201-3475
  • Mfr. Part No. EC-SD2
Each
€43.93(exc. VAT)
Temporarily out of stock
Hager Hager NSN Circuit Breaker, 3P, 10A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 599-720
  • Mfr. Part No. NSN310
Each
€290.03(exc. VAT)
Temporarily out of stock
Siemens 24V ac Circuit Trip
  • RS Stock No. 223-7649
  • Mfr. Part No. 5TT4455-2
Each
€115.25(exc. VAT)
Temporarily out of stock
ABB S800C MCB, 3P, 16A Curve D, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-228
  • Mfr. Part No. 2CCS883001R0161
Each
€183.74(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 257-634
  • Mfr. Part No. 3VA5560-0MH32-0AA0
Each
€2,254.96(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 125A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 340-871
  • Mfr. Part No. BGF36125
Each
€767.00(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-624
  • Mfr. Part No. 3VA5140-4EF31-0AA0
Each
€267.35(exc. VAT)
In Stock
Siemens SENTRON 5SJ4 MCB, 1P, 4A Curve C, 14 kA Breaking Capacity
  • RS Stock No. 202-7059
  • Mfr. Part No. 5SJ4104-7HG40
Each
€49.87(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 90A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 147-602
  • Mfr. Part No. 3VA5190-4ED31-1AA0
Each
€288.23(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 225A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-801
  • Mfr. Part No. 3VA5222-5GC41-2AA0
Each
€1,462.15(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 3A Curve C, 440V AC, 180V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-3499
  • Mfr. Part No. A9F74303
Each
€187.33(exc. VAT)
In Stock
ABB S-ARC1 M MCB, 1+N, 13A Curve C, 240V AC, 10 kA Breaking Capacity
  • RS Stock No. 175-9936
  • Mfr. Part No. 2CSA275901R9134
Each
€225.41(exc. VAT)
Temporarily out of stock
Contactum 18 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9155
  • Mfr. Part No. DD181SPMS
Each
€217.25(exc. VAT)
Temporarily out of stock
Eaton RCCB, 40A, 4 Pole, 100mA, Type G, 230 V ac, 400 V ac
  • RS Stock No. 227-0729
  • Mfr. Part No. 264997 PFGM-40/4/01-G
Each
€320.77(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 63A, Fixed Mount
  • RS Stock No. 254-6319
  • Mfr. Part No. C11H3TM063L
Each
€469.42(exc. VAT)
In Stock
Better World
Siemens, SENTRON MCCB 4P 250A, Fixed Mount
  • RS Stock No. 210-1692
  • Mfr. Part No. 3VA1225-1AA42-0AA0
Each
€563.66(exc. VAT)
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