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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

    35148 產品顯示為 Circuit Breakers

    1670 的 999+
    Schneider Electric ComPacT Control Unit for use with Compact NS630b to NS1600
    • RS庫存編號 341-524
    • 製造零件編號 C6PFM
    个
    HK$72,813.79
    Siemens SENTRON Library for use with For Integration Of The Devices In Process Control System PCS 7 V9.0 SP1 / SP2 / SP3
    • RS庫存編號 266-712
    • 製造零件編號 3ZS2787-1CC30-0YG0
    个
    HK$11,154.60
    Hager Incoming Power Terminal for use with KBN663A Busbars, KBN663C Busbars
    • RS庫存編號 144-4694
    • 製造零件編號 KF83D
    个（每托盘 4 ）
    HK$56.243
    Siemens SENTRON Connection Unit for use with Circuit Breaker 3WL10 / 3VA27
    • RS庫存編號 266-700
    • 製造零件編號 3VW9011-0AN73
    个
    HK$6,018.50
    Siemens SENTRON Connection Unit for use with Circuit Breaker 3WL10 / 3VA27
    • RS庫存編號 266-699
    • 製造零件編號 3VW9011-0AN33
    整套：1 个
    HK$2,084.30
    Schneider Electric ComPacT Cover for use with ComPacT
    • RS庫存編號 357-658
    • 製造零件編號 C47067
    个
    HK$134.30
    Siemens SENTRON Door Locking Kit for use with Circuit Breaker 3WL10 / 3VA27
    • RS庫存編號 266-725
    • 製造零件編號 3VW9011-0BB10
    个
    HK$3,842.10
    Siemens SENTRON Connection Unit for use with Circuit Breaker 3WL10 / 3VA27
    • RS庫存編號 266-696
    • 製造零件編號 3VW9011-0AL75
    个
    HK$2,762.30
    Contactum Conversion Kit
    • RS庫存編號 184-9100
    • 製造零件編號 DCA25
    个
    HK$350.46
    Schneider Electric Resi9 Extension Box for use with Resi9 enclosure
    • RS庫存編號 357-156
    • 製造零件編號 R9H10750
    个
    HK$596.17
    Siemens SENTRON Plug for use with Circuit Breaker 3WL10 / 3VA27
    • RS庫存編號 266-729
    • 製造零件編號 3VW9011-0LF56
    个
    HK$1,197.00
    Schneider Electric MasterPacT Locking Kit for use with MasterPact NW
    • RS庫存編號 432-742
    • 製造零件編號 64937
    个
    HK$2,067.17
    Siemens SENTRON Cover for use with Circuit Breaker 3WL10 / 3VA27
    • RS庫存編號 266-735
    • 製造零件編號 3VW9723-0WF30
    整套：1 个
    HK$1,222.10
    Siemens SENTRON Plug for use with Circuit Breaker 3WL10 / 3VA27
    • RS庫存編號 266-745
    • 製造零件編號 3VW9011-0AA56
    个
    HK$1,197.00
    Schneider Electric Resi9 Extension Box for use with Resi9 enclosure
    • RS庫存編號 358-446
    • 製造零件編號 R9H10760
    个
    HK$691.14
    Schneider Electric Compact Guide Frame for use with NS800H
    • RS庫存編號 354-409
    • 製造零件編號 33381
    个
    HK$47,861.40
    Schneider Electric PowerPact H Terminal Cover for use with Circuit Breaker
    • RS庫存編號 339-303
    • 製造零件編號 S37436
    个
    HK$844.49
    Siemens SENTRON Guide Frame for use with Circuit Breaker 3VA27
    • RS庫存編號 266-743
    • 製造零件編號 3VW8116-7AE01
    个
    HK$15,653.10
    Schneider Electric PowerPact H Lug Connector for use with Short lug
    • RS庫存編號 358-467
    • 製造零件編號 S37447
    个
    HK$1,909.25
    Siemens SENTRON Terminal Cover for use with 5SM1
    • RS庫存編號 328-366
    • 製造零件編號 5SW3008
    个
    HK$59.80
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