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

39184 Products showing for Circuit Breakers

314 of 999+
Schneider Electric A9R RCCB, 40A, 4 Pole, 300mA, Type A, 415V ac
  • RS Stock No. 335-373
  • Mfr. Part No. A9R25440
Each
€416.66(exc. VAT)
Schneider Electric ComPacT Cover Frame for use with ComPacT NS1600b
  • RS Stock No. 654-147
  • Mfr. Part No. C200H3FM
Each
€7,828.76(exc. VAT)
Better World
Schneider Electric Acti9 iDT40 RCD, 40A, 1 Pole, 300mA, Type A-SI, 230V ac
  • RS Stock No. 239-9998
  • Mfr. Part No. A9Y65640
Each
€349.36(exc. VAT)
Eaton xEffect - FRCmM RCCB, 16A, 2 Pole, 500mA, Type A, 240/415V ac
  • RS Stock No. 123-221
  • Mfr. Part No. 170281 FRCMM-16/2/05-A
Each
€205.00(exc. VAT)
Siemens ALPHA Base for use with ALPHA 630 DIN
  • RS Stock No. 629-074
  • Mfr. Part No. 8GK9901-0KA22
Each
€318.10(exc. VAT)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 50A Current Rating
  • RS Stock No. 175-1507
  • Mfr. Part No. GV4P50B
Each
€341.80(exc. VAT)
Siemens ALPHA Assembly Kit for use with 3VA2 Molded Case Circuit Breakers
  • RS Stock No. 629-396
  • Mfr. Part No. 8GK4736-4KK22
Each
€138.85(exc. VAT)
ABB Tmax T Handle, Lockable for use with Circuit Breaker
  • RS Stock No. 232-0142
  • Mfr. Part No. 1SDA060409R1 RHE F T6
Each
€248.22(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-7523
  • Mfr. Part No. 1SDA067844R1 XT2S 160 Ekip I 160A FF
Each
€863.91(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-3681
  • Mfr. Part No. 3VA2025-7JQ32-0AA0
Each
€1,272.10(exc. VAT)
Better World
Siemens SIRIUS Electronic Circuit Breaker 8A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 159-655
  • Mfr. Part No. 3RV2411-1HA20-0DA0
Each
€110.05(exc. VAT)
Eaton xEffect MCB, 1P, 10A Curve C, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 922-7172
  • Mfr. Part No. 279126 FAZ-C10/1-DC
Each
€81.94(exc. VAT)
Better World
ABB System Pro M Compact S200M MCB, 2P, 50A Curve B, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 132-043
  • Mfr. Part No. 2CDS272001R0505 S202M-B50
Each
€72.45(exc. VAT)
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 250mA Current Rating
  • RS Stock No. 782-0898
  • Mfr. Part No. W28-XQ1A-0.25
Each
€9.60(exc. VAT)
Phoenix Contact TTC Electronic Circuit breaker 6A 24V TTC, DIN Rail Mount
  • RS Stock No. 207-2672
  • Mfr. Part No. 1065312
Each
€187.14(exc. VAT)
Better World
Siemens Sentron for use with 3VA Series Circuit Breaker
  • RS Stock No. 874-4540
  • Mfr. Part No. 3VA9988-0BL33
Each
€74.08(exc. VAT)
Siemens 5SM26 RCCB, 100A, 4 Pole, 300mA, Type A, 400V
  • RS Stock No. 328-485
  • Mfr. Part No. 5SM2647-6
Each
€309.13(exc. VAT)
Better World
ABB, XT4L MCCB 4P 250A, Fixed Mount
  • RS Stock No. 236-6636
  • Mfr. Part No. 1SDA068181R1 XT4L 250 BLOC FF
Each
€790.48(exc. VAT)
Eaton xComfort KLV Distribution Board Enclosure
  • RS Stock No. 125-094
  • Mfr. Part No. 178826 KLV-36HWS-F
Each
€174.00(exc. VAT)
Better World
Schneider Electric GFP RCCB, 63A, 2 Pole, 240V
  • RS Stock No. 256-6821
  • Mfr. Part No. M9R81263
Each
€297.05(exc. VAT)
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