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

99 of 999+
Temporarily out of stock
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 257-306
  • Mfr. Part No. 3VA5325-6EC31-2AA0
Each
HK$12,866.20
In Stock
Phoenix Contact Electronic Circuit Breaker
  • RS Stock No. 252-5377
  • Mfr. Part No. 1115657
Each
HK$974.60
New product - Preorder today
Schneider Electric R9R RCCB, 63A, 4 Pole, 30mA, Type A, 400V ac
  • RS Stock No. 654-678
  • Mfr. Part No. R9R22463
Each
HK$3,697.07
Temporarily out of stock
Better World
Siemens SIRIUS Electronic Circuit Breaker 22A 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-243
  • Mfr. Part No. 3RV2821-4CD10
Each
HK$3,232.90
In Stock
Europa EUC3P EUC MCB, 3P, 20A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6594
  • Mfr. Part No. EUC3P20C
Each
HK$276.50
Temporarily out of stock
Hager BS RCCB, 63A, 2P Pole, Type AC
  • RS Stock No. 602-080
  • Mfr. Part No. BS264
Each
HK$3,858.70
Temporarily out of stock
Hager BFH RCCB, 63A, 4 Pole, 300mA
  • RS Stock No. 602-076
  • Mfr. Part No. BFH863
Each
HK$5,721.20
Temporarily out of stock
Better World
Siemens 5SV3 RCCB, 10A, 2 Pole, 30mA, Type F, 230/400V
  • RS Stock No. 218-884
  • Mfr. Part No. 5TY1350-3MF10
Each
HK$5,722.00
Temporarily out of stock
Eaton xE?ect - FRCmM-NA RCCB, 63A, 4 Pole, 30mA, Type A, 240/415V ac
  • RS Stock No. 120-322
  • Mfr. Part No. 167103 FRCMM-63/4/003-A-NA
Each
HK$2,591.90
In Stock
Phoenix Contact Electronic Circuit Breaker 4A 12 → 24V, 1 channels , Plug-On
  • RS Stock No. 269-8048
  • Mfr. Part No. 1157285
Each
HK$447.80
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 1.6kA, Breaking Capacity 42 kA, Fixed Mount
  • RS Stock No. 345-332
  • Mfr. Part No. C160H42AFM
Each
HK$156,628.72
In Stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - TeSyS GV 3 Pole 690V ac Voltage Rating, 80A Current Rating
  • RS Stock No. 175-1484
  • Mfr. Part No. GV4LE80B
Each
HK$2,352.70
In Stock
ABB Surge Protector, DIN Rail Mount
  • RS Stock No. 136-3878
  • Mfr. Part No. 1SNA198729R0100
Each (In a Pack of 5)
HK$10.06
In Stock
Hager CDC RCD Switch, 40A, 4 Pole, 30mA, Type AC, 230 → 400V
  • RS Stock No. 599-743
  • Mfr. Part No. CDC447F
Each
HK$2,742.20
Currently unavailable
Schneider Electric Vigi iC60 RCD, 63A, 3 Pole, 30mA
  • RS Stock No. 230-6695
  • Mfr. Part No. A9V54363
Each
HK$5,378.84
Temporarily out of stock
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT Single Pole 240V ac Voltage Rating Clip-On,
  • RS Stock No. 336-585
  • Mfr. Part No. BJL16020
Each
HK$3,955.00
In Stock
Better World
ABB System Pro M Compact S200 MCB, 2P, 40A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7570
  • Mfr. Part No. 2CDS252001R0405 S202-B40
Each
HK$507.50
Temporarily out of stock
ABB S204L MCB, 4P, 10A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 204-251
  • Mfr. Part No. 2CDS244701R0104
Each
HK$1,529.12
In Stock
Europa EUC1P EUC MCB, 1P, 1A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6493
  • Mfr. Part No. EUC1P1C
Each
HK$55.20
In Stock
Europa EUC1P EUC MCB, 1P, 4A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 849-6490
  • Mfr. Part No. EUC1P4C
Each
HK$67.30
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