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    Fuses & Circuit Breakers

    Although they work in different ways, fuses and circuit breakers broadly have the same purpose; to protect electrical appliances and electrical circuits from short circuits, and excessive current (called overcurrent or overload).

    Fuses

    Fuses are relatively low cost electrical safety devices. If too much current enters the circuit, the fuse will burn out (sometimes called blowing out). When the fuse blows out it breaks the circuit. This protects the attached devices and allows you to touch devices without being electrocuted. When the fuse blows, it must be replaced before using the device or appliance again.

    Circuit breakers

    Circuit breakers work in a similar way to fuses, but they are resettable. Once a fault is detected (this is typically a short circuit or an excessive amount of current flowing through the circuit) the circuit breaker will interrupt the flow of current. When the circuit breaker trips, it's simply a case of flicking a switch to reset the circuit breaker. As soon as you've reset the circuit breaker, it is ready to use again.

    Circuit Breakers
    Circuit Breakers
    Earth & Lightning Protection
    Earth & Lightning Protection
    Fuse Holders & Accessories
    Fuse Holders & Accessories
    Fuses
    Fuses

    44887 產品顯示為 Fuses & Circuit Breakers

    15 的 999+
    ABB FH200 RCCB, 40A, 2 Pole, 30mA, Type AC
    • RS庫存編號 540-1622
    • 製造零件編號 2CSF202006R1400 FH202 AC-40/0,03
    个
    HK$614.15
    ABB SN201 MCB, 1+N, 10A Curve C, 230V AC, 4.5 kA Breaking Capacity
    • RS庫存編號 186-3478
    • 製造零件編號 2CSS245202R0104
    个
    HK$142.90
    Mersen 20A T Fibreglass Cartridge Fuse, 10 x 38mm
    • RS庫存編號 914-4376
    • 製造零件編號 ATQR20
    个
    HK$91.60
    Limitor Thermal Fuse +80°C 2.5 A, 250V ac
    • RS庫存編號 176-9148
    • 製造零件編號 P82 80 05100
    个
    HK$50.60
    Hager Electronic Circuit Breaker 32A MFS, 1 channels
    • RS庫存編號 251-2070
    • 製造零件編號 MFS732
    个（每托盘 12 ）
    HK$245.421
    Better World
    Schneider Electric Multi 9 C60SP MCB, 2P, 6A Curve D, 440V AC, 125V DC, 15 kA Breaking Capacity
    • RS庫存編號 211-2395
    • 製造零件編號 M9F23206
    个
    HK$350.30
    RS PRO 1A F Glass Cartridge Fuse, 5 x 20mm
    • RS庫存編號 668-5966
    个（每托盘 10 ）
    HK$2.98
    Schurter 5A F Glass Cartridge Fuse, 5 x 20mm
    • RS庫存編號 870-1647
    • 製造零件編號 7010.3480
    个（每托盘 10 ）
    HK$22.55
    Littelfuse 3A F Glass Cartridge Fuse, 5 x 15mm
    • RS庫存編號 878-3573
    • 製造零件編號 0225003.HXP
    个（每托盘 50 ）
    HK$4.366
    RS PRO 5A T Glass Cartridge Fuse, 5 x 20mm
    • RS庫存編號 563-532
    个（每托盘 10 ）
    HK$2.99
    Better World
    Schneider Electric Acti 9 2 Phase Busbar, 415V ac, 18mm Pitch
    • RS庫存編號 776-2724
    • 製造零件編號 A9XPH224
    个
    HK$328.20
    RS PRO 10A British Standard Fuse, A2, 550V ac, 73mm
    • RS庫存編號 521-2573
    个（每托盘 5 ）
    HK$38.36
    Better World
    ABB System Pro M Compact S200 MCB, 2P, 500mA Curve C, 440V AC, 125V DC, 20 kA Breaking Capacity
    • RS庫存編號 231-9679
    • 製造零件編號 2CDS252001R0984 S202 C 0.5A - 10 KA
    毎盒：1 个
    HK$515.37
    Schurter 2A T Ceramic Cartridge Fuse, 6.3 x 32mm
    • RS庫存編號 830-4228
    • 製造零件編號 8020.5014.G
    个（每托盘 10 ）
    HK$5.65
    Eaton 250A British Standard Fuse, FM, 690 V ac, 500V dc, 80 → 85mm
    • RS庫存編號 156-9083
    • 製造零件編號 250FM
    个
    HK$379.10
    ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 4A Current Rating
    • RS庫存編號 458-8712
    • 製造零件編號 1180-01-4A
    个
    HK$140.20
    RS PRO PC Board Non Resettable Fuse, Radial 250mA, 250V
    • RS庫存編號 767-5171
    个（每托盘 10 ）
    HK$3.41
    Siemens Sentron 5SJ6 MCB, 3P, 20A Curve B, 230V AC, 60V DC, 6 kA Breaking Capacity
    • RS庫存編號 621-9878
    • 製造零件編號 5SJ6320-6KS
    个
    HK$656.20
    RS PRO 25A Bolted Tag Fuse, A2, 250 V dc, 690V ac, 73mm
    • RS庫存編號 221-3711
    毎包：5 个
    HK$326.70
    HENSEL ENYSTAR Distribution Board, 63 A
    • RS庫存編號 117-826
    • 製造零件編號 KV 4648
    个
    HK$1,784.59
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