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

35852 Products showing for Circuit Breakers

107 of 999+
Eaton xE?ect - FRCmM-NA RCCB, 63A, 2 Pole, 30mA, 110/190V
  • RS Stock No. 121-165
  • Mfr. Part No. 167695 FRCMM-63/2/003-G/A-NA-110
Each
HK$2,804.50
Hager BDC RCCB, 125A, 4P Pole, 30mA, Type AC
  • RS Stock No. 602-057
  • Mfr. Part No. BDC480E
Each
HK$8,431.30
Siemens SENTRON Undervoltage Release for use with Circuit Breaker 3WL10 / 3VA27
  • RS Stock No. 265-655
  • Mfr. Part No. 3VW9011-0AE01
Each
HK$3,130.60
Hager BD Series RCCB, 25A, 2 Pole, 30mA, Type A-HI, 230V
  • RS Stock No. 597-891
  • Mfr. Part No. BD225
Each
HK$3,893.40
Schneider Electric Multi9 Padlock Device for use with Circuit Breaker
  • RS Stock No. 212-132
  • Mfr. Part No. MGN26381
Each
HK$470.98
Eaton xE?ect - FRCmM-NA RCCB, 40A, 2 Pole, 300mA, Type A, 240/415V ac
  • RS Stock No. 120-291
  • Mfr. Part No. 167117 FRCMM-40/2/03-A-NA
Each
HK$2,153.20
Schneider Electric, ComPacT Circuit Breaker Accessory 3, 4, Fixed Mount
  • RS Stock No. 654-990
  • Mfr. Part No. 33511
Each
HK$17,680.95
Schneider Electric EasyPact Electronic Circuit Breaker 32A, Fixed
  • RS Stock No. 122-498
  • Mfr. Part No. LV510542
Each
HK$2,262.76
Eaton IZMX16H3-P12W-1 Electronic Circuit Breaker 1.25kA , DIN Rail
  • RS Stock No. 127-749
  • Mfr. Part No. 183482 IZMX16H3-P12W-1
Each
HK$85,271.64
ETA Thermal Magnetic Circuit Breaker - 3400 Single Pole Panel Mount, 10A Current Rating
  • RS Stock No. 122-9303
  • Mfr. Part No. 3400-P10-H-SI-10A
Each
HK$636.00
Better World
Siemens RCBO, 10A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS Stock No. 243-6203
  • Mfr. Part No. 5SU1336-6FP10
Each
HK$1,551.90
Legrand RCD Switch, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, DX Range
  • RS Stock No. 731-9871
  • Mfr. Part No. 4 107 83
Each
HK$3,703.63
Better World
Siemens SENTRON 3VA1 MCB, 2P, 16A
  • RS Stock No. 224-7902
  • Mfr. Part No. 3VA1196-5ED26-0AA0
Each
HK$1,959.90
Better World
Siemens SENTRON Electronic Circuit Breaker 250A 3VA, 3 channels
  • RS Stock No. 155-818
  • Mfr. Part No. 3VA2325-8KQ32-0AA0
Each
HK$33,996.40
Schneider Electric, ComPacT MCCB 4P 630A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-143
  • Mfr. Part No. C063N450FM
Each
HK$48,348.70
TE Connectivity Thermal Magnetic Circuit Breakers - Potter & Brumfield W54 Single Pole 250V ac Voltage Rating Panel
  • RS Stock No. 240-8954
  • Mfr. Part No. 3-1393250-2
Each (In a Bag of 100)
HK$51.169
Sensata Airpax Airpax Thermal Circuit Breaker - IEG66 2 Pole Panel Mount, 50A Current Rating
  • RS Stock No. 275-0209
  • Mfr. Part No. IEG66-1-62-50.0-AZ-01-V
1 Box of 5
HK$4,031.70
ABB System Pro M Compact S200 MCB, 2P, 25A, Type Z, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-260
  • Mfr. Part No. 2CDS252001R0518
Each
HK$1,710.29
ABB System Pro M Compact S200 MCB, 2P, 6A Curve D, 230V AC, 125V DC, 20 kA Breaking Capacity
  • RS Stock No. 191-9449
  • Mfr. Part No. 2CDS252001R0061 S202-D6
Each
HK$662.43
ABB S800S MCB, 2P, 40A Curve D, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-911
  • Mfr. Part No. 2CCS862001R0401
Each
HK$4,480.42
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