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

263 of 999+
ABB RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 181-4368
  • Mfr. Part No. 2CSA255103R1165 DS-ARC1 B16 A30
Each
€291.45(exc. VAT)
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA2, 3 channels
  • RS Stock No. 157-322
  • Mfr. Part No. 3VA2225-7JQ32-0AA0
Each
€2,066.29(exc. VAT)
Legrand Vistop MCB, 4P, 125A, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 620-2959
  • Mfr. Part No. 0 225 39
Each
€295.24(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3574
  • Mfr. Part No. 3VA2010-7HM42-0AA0
Each
€1,084.78(exc. VAT)
Allen Bradley 140MT Three Phase Busbar, 45mm Pitch
  • RS Stock No. 273-2322
  • Mfr. Part No. 140MT-C-W455
Each
€18.79(exc. VAT)
Siemens SENTRON 2 Phase Busbar, 27mm Pitch
  • RS Stock No. 187-5165
  • Mfr. Part No. 5ST3611
Each
€9.91(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4757
  • Mfr. Part No. 3VA2163-7KP36-0AA0
Each
€1,328.23(exc. VAT)
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 4 channels
  • RS Stock No. 259-3675
  • Mfr. Part No. 1SDA071649R1
Each
€12,058.54(exc. VAT)
Better World
Schneider Electric Easypact Cvs400...630, Nsx400...630 Dc, Powerpact Multistandard Front Plate for use with Compact Nsx
  • RS Stock No. 221-1256
  • Mfr. Part No. LV432558
Each
€55.21(exc. VAT)
Siemens Busbar Trunking Fixing Bracket, BD01 Series
  • RS Stock No. 213-2428
  • Mfr. Part No. BVP:081945
Each
€7.18(exc. VAT)
Better World
Siemens SIRIUS Electronic Circuit Breaker 12.5A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-706
  • Mfr. Part No. 3RV2321-1KC20
Each
€89.96(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 63A, Fixed Mount
  • RS Stock No. 260-9481
  • Mfr. Part No. C10H4TM063
Each
€889.85(exc. VAT)
nVent ERICO Surge Protector, DIN Rail Mount
  • RS Stock No. 277-6245
  • Mfr. Part No. LANRJ45C6P
Each
€216.60(exc. VAT)
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-838
  • Mfr. Part No. A9D73616
Each
€295.91(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 80A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 271-9433
  • Mfr. Part No. 3VA1180-6ED46-0AA0
Each
€385.54(exc. VAT)
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7318
  • Mfr. Part No. 1SDA067497R1 MA 200 Im=1000...2000 XT4
Each
€461.70(exc. VAT)
ETA Thermal Circuit Breaker - 1140, 12A Current Rating
  • RS Stock No. 289-0567
  • Mfr. Part No. 1140-G151-P7M1-12A
Each
€28.20(exc. VAT)
Legrand DX3 Circuit Breaker for use with Electrical Circuits
  • RS Stock No. 266-1333
  • Mfr. Part No. 408062
Each
€238.90(exc. VAT)
Better World
Schneider Electric iID RCD, 80A, 300mA
  • RS Stock No. 776-3711
  • Mfr. Part No. A9R15480
Each
€526.21(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 3P, 2A Curve K, 440V AC, 20 kA Breaking Capacity
  • RS Stock No. 514-0181
  • Mfr. Part No. 2CDS253001R0277 S203-K2
Each
€124.19(exc. VAT)
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