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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

    44630 產品顯示為 Fuses & Circuit Breakers

    1 的 999+
    Bourns SMD Non Resettable Fuse 15A, 250V ac
    • RS庫存編號 187-8675
    • 製造零件編號 SF-3812F1500T-2
    个（每托盘 10 ）
    HK$24.13
    Siemens 100A Centred Tag Fuse, NH000, 500V ac
    • RS庫存編號 203-2011
    • 製造零件編號 3NA7830
    个（每托盘 3 ）
    HK$39.567
    Schurter 500mA T Ceramic Cartridge Fuse, 6.3 x 32mm
    • RS庫存編號 269-3865
    • 製造零件編號 8020.5008
    个
    HK$5.32
    Schurter 16A PCB Mount Fuse Holder for 6.3 x 32mm Fuse, 400V ac
    • RS庫存編號 866-4750
    • 製造零件編號 0031.3822
    个（每托盘 10 ）
    HK$29.75
    Better World
    Siemens 3VA91 RCD, 160A, 4 Pole, Type B
    • RS庫存編號 218-1795
    • 製造零件編號 3VA9114-0RL21
    个
    HK$17,691.90
    MEAN WELL Surge Protector, 10kA, 320V (Volts), Panel Mount Mount
    • RS庫存編號 145-107
    • 製造零件編號 SPD-10-320S
    个
    HK$98.11
    Limitor Thermal Fuse +167°C 15 A, 250V ac
    • RS庫存編號 797-6052
    • 製造零件編號 SF 167 R
    个（每托盘 10 ）
    HK$6.87
    Better World
    Siemens Sentron 5SY4 MCB, 3P, 32A Curve D, 400V AC, 10 kA Breaking Capacity
    • RS庫存編號 772-1385
    • 製造零件編號 5SY4332-8
    个
    HK$1,143.00
    Better World
    Siemens Sentron 5SY4 MCB, 1P, 3A Curve C, 230V AC, 10 kA Breaking Capacity
    • RS庫存編號 622-0020
    • 製造零件編號 5SY4103-7
    个
    HK$372.50
    Better World
    Siemens SENTRON 5SY MCB, 1P, 2A, Type A
    • RS庫存編號 232-2282
    • 製造零件編號 5SY4102-5
    个
    HK$350.00
    Littelfuse SMD Non Resettable Fuse 500mA, 125V ac/dc
    • RS庫存編號 541-3350
    • 製造零件編號 0451.500MRL
    个（每托盘 10 ）
    HK$6.93
    RS PRO 30A Rail Mount Fuse Holder for 5 x 20mm Fuse, 1P, 500V
    • RS庫存編號 242-0497
    毎包：10 个
    HK$296.70
    Mersen 63A NH Fuse, NH000, 500V ac
    • RS庫存編號 270-3102
    • 製造零件編號 R212466
    个 (以毎盒：3)
    HK$79.37
    Siemens 400A Centred Tag Fuse, NH2, 500V ac
    • RS庫存編號 203-1988
    • 製造零件編號 3NA7260
    个（每托盘 3 ）
    HK$142.873
    Better World
    Schneider Electric Acti 9 iC60H MCB, 1P, 10A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
    • RS庫存編號 791-3293
    • 製造零件編號 A9F54110
    个
    HK$395.40
    Siemens 35A NH Fuse, NH000, 500V ac
    • RS庫存編號 395-913
    • 製造零件編號 3NA3814
    个（每托盘 3 ）
    HK$51.80
    Murrelektronik Limited Electronic Circuit Breaker
    • RS庫存編號 123-6689
    • 製造零件編號 9000-41034-0100600
    个
    HK$2,415.90
    Mersen 35A D02 Neozed Fuse, gG, 400V ac
    • RS庫存編號 377-0285
    • 製造零件編號 R219826
    个（每托盘 5 ）
    HK$14.34
    Eaton 63A British Standard Fuse, A3, 500V, 73.5mm
    • RS庫存編號 156-8636
    • 製造零件編號 BAO63M100
    个
    HK$112.80
    Sato Parts Panel Mount Fuse Holder for 5 x 20 mm, 6.3 x 32 mm Fuse
    • RS庫存編號 371-8552
    • 製造零件編號 F-7155
    个（每托盘 5 ）
    HK$24.52
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