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

38220 Products showing for Circuit Breakers

144 of 999+
Hager BDC RCCB, 25A, 3P+N Pole, 30mA, Type AC
  • RS Stock No. 602-163
  • Mfr. Part No. BDC925F
Each
Kr. 3 365,65(exc. VAT)
Siemens SENTRON 5SJ4103 MCB, 1P, 3A Curve D, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 299-717
  • Mfr. Part No. 5SJ4103-8HG40
Each
Kr. 600,83(exc. VAT)
Siemens SENTRON 5SJ4214 MCB, 2P, 300mA Curve D, 400V AC, 60V DC, 14 kA Breaking Capacity
  • RS Stock No. 299-670
  • Mfr. Part No. 5SJ4214-8HG41
Each
Kr. 2 114,46(exc. VAT)
Eaton Eaton Moeller Enclosure for use with PKZM0
  • RS Stock No. 272-2287
  • Mfr. Part No. 219657 CI-K2-PKZ0-GV
Each
Kr. 261,13(exc. VAT)
Eaton Eaton Moeller NZM Residual Current Release for use with N(S)1, Three Pole NZM1
  • RS Stock No. 240-650
  • Mfr. Part No. 104611 NZM1-XFIU
Each
Kr. 14 791,92(exc. VAT)
Hager Hager NKN Circuit Breaker, 3P, 63A Curve C, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 599-919
  • Mfr. Part No. NKN363
Each
Kr. 4 001,71(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 4kA Ekip G Touch LSIG, 4 channels
  • RS Stock No. 259-3845
  • Mfr. Part No. 1SDA071857R1
Each
Kr. 395 132,98(exc. VAT)
Schneider Electric Acti9 A9F0 MCB, 2P, 2A Curve C, 440V AC, 125V DC, 25 kA Breaking Capacity
  • RS Stock No. 212-097
  • Mfr. Part No. A9F04202
Each
Kr. 1 161,27(exc. VAT)
Schneider Electric Cable Connection Kit for use with ComPact NS630b → 1600 Circuit Breaker
  • RS Stock No. 247-1849
  • Mfr. Part No. 33640
Each
Kr. 4 332,90(exc. VAT)
ABB S803S MCB, 3P, 63A, UC-K, 750V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-277
  • Mfr. Part No. 2CCS863001R1597
Each
Kr. 5 947,51(exc. VAT)
Eaton xEffect MCB, 4P, 63A Curve C, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 251-913
  • Mfr. Part No. 211797 AZ-4-C63
Each
Kr. 5 468,32(exc. VAT)
Siemens SENTRON 5SY8 MCB, 2P, 50A Curve D, 230V AC, 60V DC, 50 kA Breaking Capacity
  • RS Stock No. 610-280
  • Mfr. Part No. 5SY8550-8
Each
Kr. 2 253,68(exc. VAT)
Eaton MCB, 4P, 4A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 241-189
  • Mfr. Part No. 101365 PLI-D4/4
Each
Kr. 2 230,80(exc. VAT)
Eaton xEffect FAZ MCB, 3P, 16A, Type Z, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 256-949
  • Mfr. Part No. 278927 FAZ-Z16/3
Each
Kr. 1 555,84(exc. VAT)
Siemens SENTRON 5SY8 MCB, 2P, 32A Curve D, 230V AC, 60V DC, 30 kA Breaking Capacity
  • RS Stock No. 610-408
  • Mfr. Part No. 5SY8532-8
Each
Kr. 1 487,20(exc. VAT)
Siemens SENTRON 5SY4 MCB, 3P, 4A, Type A, 400V AC, 60V DC, 35 kA Breaking Capacity
  • RS Stock No. 610-314
  • Mfr. Part No. 5SY4304-5
Each
Kr. 2 127,84(exc. VAT)
Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)4(-4), NZM4(-4)
  • RS Stock No. 257-825
  • Mfr. Part No. 279403 NZM4-XTVDVR-0
Each
Kr. 3 752,32(exc. VAT)
Eaton MCB, 4P, 8A Curve B, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 241-184
  • Mfr. Part No. 101353 PLI-B8/4
Each
Kr. 1 704,56(exc. VAT)
Schneider Electric Acti9 3, 3+N Phase Distribution Board, 22 Way, 250 A
  • RS Stock No. 654-761
  • Mfr. Part No. SEA9BPN10AFD12
Each
Kr. 12 739,77(exc. VAT)
Better World
ABB Emax2 Electronic Circuit Breaker 1.25kA 1SDA07, 3 channels
  • RS Stock No. 259-3101
  • Mfr. Part No. 1SDA070953R1
Each
Kr. 67 988,40(exc. VAT)
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