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

39187 Products showing for Circuit Breakers

81 of 999+
Temporarily out of stock
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P, Fixed Mount
  • RS Stock No. 232-0273
  • Mfr. Part No. 1SDA068174R1 XT4S 250 BLOC FF
Each
€434.93(exc. VAT)
In Stock
brennenstuhl BD 4 Phase Distribution Board, 4 Way, 30 mA
  • RS Stock No. 270-2188
  • Mfr. Part No. 1154911
Each
€200.44(exc. VAT)
Temporarily out of stock
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 3P 800A, Fixed Mount
  • RS Stock No. 232-0134
  • Mfr. Part No. 1SDA060268R1 T6N800 FF PR221-LS/I 800A
Each
€2,843.17(exc. VAT)
In Stock
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 183-3702
  • Mfr. Part No. 2CSR245041R1204
Each
€115.59(exc. VAT)
Temporarily out of stock
Allen Bradley 140MT Lockable Twist Knob for use with Motor Circuit Protectors
  • RS Stock No. 273-2291
  • Mfr. Part No. 140MT-C-KN
Each
€3.32(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 6A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 734-9254
  • Mfr. Part No. A9F77606
Each
€100.33(exc. VAT)
In Stock
ETA Thermal Circuit Breaker - 104-PR Single Pole 240V Voltage Rating PCB Mount, 800mA Current Rating
  • RS Stock No. 728-8601
  • Mfr. Part No. 104-PR-0.8A
Each
€16.24(exc. VAT)
Temporarily out of stock
ABB Tmax T Undervoltage Release for use with T4, T5, T6 Circuit Breakers
  • RS Stock No. 225-5860
  • Mfr. Part No. 1SDA054891R1 UVR-C 230VAC/DC T4-6
Each
€205.41(exc. VAT)
In Stock
Siemens SENTRON 1 Phase Busbar, 230V, 8.6mm Pitch
  • RS Stock No. 187-5186
  • Mfr. Part No. 5ST3674-0
Each
€25.16(exc. VAT)
In Stock
Contactum 6 Way Steel Consumer Unit, 63A Defender
  • RS Stock No. 184-9134
  • Mfr. Part No. DR068MS
Each
€107.59(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric TeSys Deca Motor Protection Circuit Breaker - 3 Pole 690V Voltage Rating, 65A Current Rating
  • RS Stock No. 256-4181
  • Mfr. Part No. GV3P656
Each
€548.29(exc. VAT)
In Stock
Lovato ModuLo P1MB MCB, 2P, 10A Curve C, 230V AC, 80V DC, 10 kA Breaking Capacity
  • RS Stock No. 825-5716
  • Mfr. Part No. P1MB2PC10
Each
€52.96(exc. VAT)
In Stock
Eaton RCD, 20A, 2 Pole, 30mA, Type C, 230V
  • RS Stock No. 922-8737
  • Mfr. Part No. 236249 PKNM-20/1N/C/003-A-MW
Each
€133.78(exc. VAT)
In Stock
Eaton Switching Interlock for use with PLS Range MCB, ZP-A Circuit Breaker
  • RS Stock No. 922-7248
  • Mfr. Part No. 274418 Z-IS/SPE-1TE
Each
€8.76(exc. VAT)
Temporarily out of stock
Eaton PFIM RCCB, 40A, 4 Pole, 300mA, Type F, Type S, 230/400V ac
  • RS Stock No. 248-929
  • Mfr. Part No. 187363 PFIM-40/4/03-S/F
Each
€205.00(exc. VAT)
Temporarily out of stock
Better World
ABB S200C MCB, 2P, 20A Curve B, 240V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-1614
  • Mfr. Part No. 2CDS251281R0205
Each
€51.11(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 1+N, 2A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 191-6084
  • Mfr. Part No. A9P22602
Each
€34.73(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric RCBO, 16A Current Rating, 1P Poles, 300mA Trip Sensitivity, Acti9 Range
  • RS Stock No. 201-2249
  • Mfr. Part No. A9DF7616
Each
€143.36(exc. VAT)
In Stock
Schneider Electric Acti9 A9F76 MCB, 4P, 16A, 440V AC, 250V DC, 6000 A Breaking Capacity
  • RS Stock No. 276-8722
  • Mfr. Part No. A9F76416
Each
€202.05(exc. VAT)
In Stock
Eaton RCBO, 20A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-286
  • Mfr. Part No. 170741 FRBMM-C20/3/003-A
Each
€183.00(exc. VAT)
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