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    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

    34712 產品顯示為 Circuit Breakers

    1708 的 999+
    Schneider Electric RCBO, 20A Current Rating, 4P Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
    • RS庫存編號 130-443
    • 製造零件編號 A9D77420
    个
    HK$12,887.61
    Better World
    Schneider Electric iID RCCB, 25A, 2 Pole, 30mA, Type B-SI, 230V ac
    • RS庫存編號 248-3717
    • 製造零件編號 A9Z61225
    个
    HK$6,621.90
    ABB SMISSLINE TP MCB, 1P, 2A Curve K, 240V AC
    • RS庫存編號 246-2485
    • 製造零件編號 2CCS571001R0277 S401M-K2
    个
    HK$461.10
    Better World
    Schneider Electric Multi 9 C60SP MCB, 1P, 1A Curve B, 415V AC, 60V DC, 20 kA Breaking Capacity
    • RS庫存編號 211-2326
    • 製造零件編號 M9F21101
    个
    HK$345.60
    ABB 800 mm x 550 mm x 215 mm Distribution Board
    • RS庫存編號 289-1614
    • 製造零件編號 2CPX070780R9999
    个
    HK$3,847.99
    Better World
    Siemens SENTRON 5SY6 MCB, 1P, 6A Curve B, 440V AC, 6 kA Breaking Capacity
    • RS庫存編號 489-6530
    • 製造零件編號 5SY6106-6
    个
    HK$133.30
    Schneider Electric Acti9 A9F MCB, 3P, 10A Curve B, 440V AC, 180V DC, 25 kA Breaking Capacity
    • RS庫存編號 288-7086
    • 製造零件編號 A9F93310
    个
    HK$4,001.98
    Better World
    Schneider Electric Multi 9 MCB Mini Circuit Breaker, 1P, 8A Curve C, 277V AC
    • RS庫存編號 256-6779
    • 製造零件編號 M9F42108
    个
    HK$963.60
    Eaton xEffect MCB, 1P, 25A Curve C, 277 → 480V AC, 60V DC, 15 kA Breaking Capacity
    • RS庫存編號 922-6917
    • 製造零件編號 102092 FAZ-C25/1-NA
    个
    HK$296.60
    RS PRO MCB, 1P, 16A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
    • RS庫存編號 265-0197
    个
    HK$85.80
    Eaton Shunt Release Shunt trip for use with PKE, Shunt release PKZ0(4)
    • RS庫存編號 240-2881
    • 製造零件編號 199340 A-PKZ0(240V50HZ)-PI
    个
    HK$397.59
    HENSEL ENYSTAR Distribution Board, 75 A
    • RS庫存編號 117-059
    • 製造零件編號 FP 1108
    个
    HK$1,394.15
    Better World
    Schneider Electric Acti 9 iC60H MCB, 3P, 63A Curve C, 440V AC, 180V DC, 10 kA Breaking Capacity
    • RS庫存編號 776-3307
    • 製造零件編號 A9F87363
    个
    HK$4,000.47
    ABB SMISSLINE TP MCB, 2P, 10A Curve D, 400V AC
    • RS庫存編號 246-2526
    • 製造零件編號 2CCS571103R8101
    个
    HK$917.70
    Better World
    ABB System Pro M Compact S200 MCB, 3P, 25A Curve C, 400V AC, 10 kA Breaking Capacity
    • RS庫存編號 746-7778
    • 製造零件編號 2CDS253001R0254 S203-C25
    个
    HK$500.40
    Siemens 5SY41 5SY MCB Mini Circuit Breaker, 1P, 3A, Type A, 400V AC, 60V DC, 10 kA Breaking Capacity
    • RS庫存編號 266-9591
    • 製造零件編號 5SY4103-5
    个
    HK$380.70
    Better World
    Schneider Electric Multi 9 MCB, 3P, 20A Curve C, 10 kA Breaking Capacity
    • RS庫存編號 219-9164
    • 製造零件編號 M9F42320
    个
    HK$2,657.30
    ABB System Pro M Compact S200M MCB, 1P, 16A Curve B, 253V AC, 72V DC, 10 kA Breaking Capacity
    • RS庫存編號 535-5995
    • 製造零件編號 2CDS271001R0165 S201M-B16
    个
    HK$132.20
    Schneider Electric Acti9 C120 MCB, 4P, 63A Curve B, 380 → 415V AC, 500V DC, 20 kA Breaking Capacity
    • RS庫存編號 106-756
    • 製造零件編號 A9N18352
    个
    HK$9,977.79
    Better World
    Siemens 5SV3321 RCCB, 16A, 2 Pole, 30mA, Type B, 230V ac
    • RS庫存編號 231-8373
    • 製造零件編號 5SV3321-4
    个
    HK$2,353.80
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