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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

    1676 的 999+
    Schneider Electric Cross Elbow Busbar Trunking, 290 → 800mm, 630A, KSA Series
    • RS庫存編號 335-015
    • 製造零件編號 KSA630DZCH43A
    个
    HK$25,174.20
    Schneider Electric Cross Elbow Busbar Trunking, 290 → 1200mm, 1000A, KSA Series
    • RS庫存編號 334-986
    • 製造零件編號 KSA1000DZE43F
    个
    HK$40,059.30
    Schneider Electric Cross Elbow Busbar Trunking, 290 → 800mm, 630A, KSA Series
    • RS庫存編號 335-039
    • 製造零件編號 KSA630DZE41A
    个
    HK$21,102.90
    Schneider Electric Mounting Plate, KS Series
    • RS庫存編號 358-259
    • 製造零件編號 KSB250DCZFL21
    个
    HK$887.01
    Phoenix Contact Fixing Bracket, AB-UTI Series
    • RS庫存編號 556-891
    • 製造零件編號 1141346
    个（每托盘 250 ）
    HK$3.03
    Better World
    Schneider Electric Busbar Feed Unit Joint, Canalis KBB Series
    • RS庫存編號 211-0393
    • 製造零件編號 KBB40ZJ44W
    个
    HK$297.90
    Eaton BB-EV 3 Phase Busbar, 690V, 17.8mm Pitch
    • RS庫存編號 244-243
    • 製造零件編號 168869 BB-EVP-16/3P-1MU
    个
    HK$615.20
    Schneider Electric Vertical Busbar, KSA250 Series
    • RS庫存編號 346-717
    • 製造零件編號 KSA250ED33012
    个
    HK$13,537.73
    Better World
    Schneider Electric Straight Busbar Trunking, 2m, 40A, Canalis KBB Series
    • RS庫存編號 211-0383
    • 製造零件編號 KBB40ED2202W
    个
    HK$734.40
    Schneider Electric Flexible Busbar Trunking, 2m, 400A, KBA40 Series
    • RS庫存編號 207-291
    • 製造零件編號 KBA40DF420TW
    个
    HK$3,070.20
    Schneider Electric Horizontal Distribution Length, 3m, 63A, KNT63 Series
    • RS庫存編號 244-984
    • 製造零件編號 KNT63ED4306
    个
    HK$4,510.45
    Schneider Electric Cross Elbow Busbar Trunking, 290 → 800mm, 630A, KSA Series
    • RS庫存編號 335-036
    • 製造零件編號 KSA630DZCG43A
    个
    HK$25,174.20
    Schneider Electric Cross Elbow Busbar Trunking, 290 → 800mm, 630A, KSA Series
    • RS庫存編號 335-073
    • 製造零件編號 KSA630DZCG41A
    个
    HK$23,570.70
    Better World
    Schneider Electric, Canalis KBB Series
    • RS庫存編號 211-0403
    • 製造零件編號 KBC16ZL20
    个（每托盘 20 ）
    HK$60.855
    Schneider Electric Canalis White Busbar Trunking, W113 mm x, L3m, Aluminium
    • RS庫存編號 276-9238
    • 製造零件編號 KSA800ED43010
    个
    HK$37,553.17
    Schneider Electric Flexible Busbar Trunking, 3mm, 400A, KSC40 Series
    • RS庫存編號 207-303
    • 製造零件編號 KSC400ED4306
    个
    HK$22,586.65
    Siemens SENTRON 3 Phase Busbar, 26.4mm Pitch
    • RS庫存編號 328-501
    • 製造零件編號 5ST3714-3HG
    个
    HK$1,209.09
    Better World
    Schneider Electric Busbar Trunking Raiser, Canalis KBB Series
    • RS庫存編號 219-8872
    • 製造零件編號 KBB40ZFMP
    个（每托盘 10 ）
    HK$221.697
    Schneider Electric Cross Elbow Busbar Trunking, 290 → 1200mm, 1000A, KSA Series
    • RS庫存編號 335-109
    • 製造零件編號 KSA1000DMBK41F
    个
    HK$37,686.40
    Schneider Electric Busbar End Feed Unit, 250A, Canalis KSA Series
    • RS庫存編號 119-275
    • 製造零件編號 KSA250ABDD4
    个
    HK$27,963.43
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