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

38192 Products showing for Circuit Breakers

1863 of 999+
Hager Distribution Board
  • RS Stock No. 252-0202
  • Mfr. Part No. SL200809039011
Each
Kr. 379,65(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-393
  • Mfr. Part No. 113393 NZMH2-4-VE250-SVE
Each
Kr. 32 203,60(exc. VAT)
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-9902
  • Mfr. Part No. 1SDA070748R1
Each
Kr. 80 604,07(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 1.25kA 1SDA07, 4 channels
  • RS Stock No. 259-3511
  • Mfr. Part No. 1SDA071477R1
Each
Kr. 116 384,35(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 9 kA, Fixed Mount
  • RS Stock No. 240-816
  • Mfr. Part No. 192325 NZMH3-PMX250
Each
Kr. 31 084,08(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 630A Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-4007
  • Mfr. Part No. 1SDA072066R1
Each
Kr. 39 515,70(exc. VAT)
Schneider Electric Acti9 Busbar, 440V ac, 18mm Pitch
  • RS Stock No. 466-492
  • Mfr. Part No. A9XPF524
1 Pack of 5
Kr. 4 637,48(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-587
  • Mfr. Part No. 3VA6560-6KT46-2AA0
Each
Kr. 94 514,99(exc. VAT)
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-767
  • Mfr. Part No. 3VA6560-5JT32-2AA0
Each
Kr. 66 437,80(exc. VAT)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 1P, 40A Curve B, 240V AC, 10000 A Breaking Capacity
  • RS Stock No. 335-289
  • Mfr. Part No. SE10B140
Each
Kr. 343,33(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 229-982
  • Mfr. Part No. 107780 NZMB2-A100-BT-NA
Each
Kr. 7 470,32(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 25A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 258-070
  • Mfr. Part No. 281239 NZMB1-4-A25
Each
Kr. 5 148,00(exc. VAT)
ABB S800U MCB, 3P, 30A, Type Z, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-645
  • Mfr. Part No. 2CCS863017R0305
Each
Kr. 4 211,58(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-554
  • Mfr. Part No. 3VA6210-5KL31-0AA0
Each
Kr. 31 427,97(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 35A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-352
  • Mfr. Part No. 3VA5135-4EC41-0AA0
Each
Kr. 5 592,33(exc. VAT)
ABB IEC Range Busbar for use with S200C
  • RS Stock No. 250-4785
  • Mfr. Part No. 2CDL801145R1013
1 Box of 15
Kr. 1 419,46(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 30A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-568
  • Mfr. Part No. 3VA5130-4EF41-0AA0
Each
Kr. 6 250,93(exc. VAT)
Siemens SENTRON Signaling Switch for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 265-665
  • Mfr. Part No. 3VW9011-0AH08
Each
Kr. 1 011,07(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LI, 3 channels
  • RS Stock No. 259-4021
  • Mfr. Part No. 1SDA072091R1
Each
Kr. 30 472,65(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-818
  • Mfr. Part No. 3VA6440-5HM31-0AA0
Each
Kr. 39 053,87(exc. VAT)
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