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 產品顯示為 Circuit Breakers

7 of 999+
Better World
Schneider Electric Acti9 iIG40K RCCB, 25A, 3+N Pole, 300mA, Type AC, 380 → 415V ac
  • RS Stock No. 238-3477
  • Mfr. Part No. A9R79725
Each
HK$2,903.80
Europa EUR1 RCCB, 25A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 210-4747
  • Mfr. Part No. EUR125.30/2A
Each
HK$332.90
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Schneider Electric iID RCCB, 63A, 4 Pole, 30mA
  • RS Stock No. 734-9138
  • Mfr. Part No. A9R11463
Each
HK$3,559.90
Schneider Electric Square D QO332VS MCB, 3P, 32A, 500V AC, 10 kA Breaking Capacity
  • RS Stock No. 244-964
  • Mfr. Part No. QO332VSC10
Each
HK$1,959.40
Better World
Siemens Sentron 5SV6 MCB, 2P, 6A, 230V AC, 6 kA Breaking Capacity
  • RS Stock No. 209-7508
  • Mfr. Part No. 5SV6016-6GV06
Each (In a Pack of 12)
HK$1,553.933
ABB Emax2 Electronic Circuit Breaker 6.3kA Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-3383
  • Mfr. Part No. 1SDA071306R1
Each
HK$480,173.44
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 32A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0244
  • Mfr. Part No. 1SDA067392R1 XT1C 160 TMD 32A FF
Each
HK$2,380.20
Schneider Electric Thermal Circuit Breaker - GB2 2 Pole 277V ac Voltage Rating DIN Rail Mount, 3A Current Rating
  • RS Stock No. 312-3796
  • Mfr. Part No. GB2DB08
Each
HK$495.30
Schneider Electric Acti9 3 Phase Distribution Board, 12 Way, 250 A
  • RS Stock No. 207-336
  • Mfr. Part No. SE36B250
Each
HK$4,911.83
RS PRO Single Phase Industrial Surge Protector, 40kA, 0.9kV, DIN Rail Mount
  • RS Stock No. 101-798
Each
HK$706.70
ABB System Pro M Compact S200 M UC MCB, 1P, 10A Curve K, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 203-821
  • Mfr. Part No. 2CDS271061R0427
Each
HK$966.04
ABB SMISSLINE TP MCB, 1P, 20A, Type Z, 220V AC
  • RS Stock No. 246-2513
  • Mfr. Part No. 2CCS571001R1208
Each
HK$804.20
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Schneider Electric Acti 9 iC60H MCB, 2P, 10A Curve B, 440V AC, 133V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-2118
  • Mfr. Part No. A9F06210
Each
HK$489.10
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Siemens Sentron 5SY4 MCB, 2P, 6A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 772-1290
  • Mfr. Part No. 5SY4206-8
Each
HK$819.80
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Schneider Electric Busbar Tap-Off Unit with Circuit Breaker, Canalis KS Series
  • RS Stock No. 211-0513
  • Mfr. Part No. KSB63SM48
Each
HK$1,331.20
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Schneider Electric NSX Motor Mechanism for use with ComPact NSX250
  • RS Stock No. 213-1346
  • Mfr. Part No. LV431546
Each
HK$12,200.98
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ABB System Pro M Compact S200M MCB, 2P, 6A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 132-015
  • Mfr. Part No. 2CDS272001R0064 S202M-C6
Each
HK$590.60
Schneider Electric RCBO, 25A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Resi9 Range
  • RS Stock No. 212-022
  • Mfr. Part No. R9D01625
Each
HK$1,265.47
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS Stock No. 260-8090
  • Mfr. Part No. C40F32D400
Each
HK$32,856.90
Better World
Schneider Electric Acti 9 Cover for use with Linergy FH Horizontal Comb Busbar
  • RS Stock No. 776-2831
  • Mfr. Part No. A9XPT920
Each
HK$87.30
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