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

4 of 999+
In Stock
Better World
Schneider Electric iID RCCB, 25A, 2 Pole, 300mA
  • RS Stock No. 734-9337
  • Mfr. Part No. A9R14225
Each
HK$1,712.52
In Stock
Better World
Schneider Electric Multi 9 C60SP MCB, 1P, 6A Curve B, 415V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 211-2330
  • Mfr. Part No. M9F21106
Each
HK$171.80
Temporarily out of stock
Better World
Siemens SENTRON 5SL4 MCB, 1+N, 1A Curve B, 230V AC, 72V DC
  • RS Stock No. 209-7478
  • Mfr. Part No. 5SL4501-6
Each
HK$535.60
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 231-9327
  • Mfr. Part No. 1SDA100345R1 XT5N 400 TMA 400-4000 3pFF
Each
HK$9,516.80
Temporarily out of stock
Siemens RCBO, 40A Current Rating, 4P Poles, 300mA Trip Sensitivity, Type AC, Sentron Range
  • RS Stock No. 196-3604
  • Mfr. Part No. 5SM26420
Each
HK$610.00
Currently unavailable
Schneider Electric Multi 9 C68N MCB, 2P, 16A, 415V AC, 6 kA Breaking Capacity
  • RS Stock No. 729-9052
  • Mfr. Part No. C68N 2P 16A (HK)
Each
HK$206.08
In Stock
Better World
Siemens SENTRON MCB, 1P, 16A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 189-3191
  • Mfr. Part No. 5SL6116-7
Each
HK$100.90
Currently unavailable
Schneider Electric IID RCCB, 40A, 4 Pole, 30mA, Type A, 380 → 415V ac
  • RS Stock No. 230-6688
  • Mfr. Part No. A9R51440
Each
HK$858.21
In Stock
Better World
Schneider Electric iID RCCB, 25A, 4 Pole, 30mA
  • RS Stock No. 734-9129
  • Mfr. Part No. A9R11425
Each
HK$2,235.70
In Stock
Better World
Schneider Electric iID RCCB, 63A, 4 Pole, 300mA, Type B-SI, 400V ac
  • RS Stock No. 248-3725
  • Mfr. Part No. A9Z64463
Each
HK$12,009.80
Temporarily out of stock
Contactum 8 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9140
  • Mfr. Part No. DS0818MS
Each
HK$1,039.72
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 2P 63A, Breaking Capacity 85 KA, Fixed Mount
  • RS Stock No. 119-601
  • Mfr. Part No. C10M2TM063
Each
HK$5,476.81
In Stock
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
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P+N 320A, Fixed Mount
  • RS Stock No. 250-4167
  • Mfr. Part No. 1SDA054438R1
Each
HK$36,339.14
In Stock
Siemens SENTRON 5SM2xxx RCCB, 40A, 4 Pole, 30mA, Type A, 400V ac
  • RS Stock No. 241-4428
  • Mfr. Part No. 5SM2342-6
Each
HK$887.50
Temporarily out of stock
ABB S803N MCB, 3P, 20A Curve C, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-913
  • Mfr. Part No. 2CCS893001R0204
Each
HK$4,485.94
Temporarily out of stock
Hager GAMMA 1 Phase Distribution Board, 4 Way, 63 A
  • RS Stock No. 252-2609
  • Mfr. Part No. GD418A
Each
HK$2,463.92
In Stock
ABB, Protecta MCCB 3P 160A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 831-9175
  • Mfr. Part No. 1SDA067418R1 XT1N 160 TMD 160-1600 3p F F
Each
HK$3,024.30
In Stock
Schneider Electric Acti9 iID RCCB, 80A, 4 Pole, 30mA, Type A-SI, 380 → 415V ac
  • RS Stock No. 130-793
  • Mfr. Part No. A9R31480
Each
HK$11,897.97
Temporarily out of stock
Eaton xEffect RCCB, 63A, 4 Pole, 100mA, Type B, 240V ac
  • RS Stock No. 248-947
  • Mfr. Part No. 187805 FRCMM-63/4/01-B
Each
HK$11,224.70
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