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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

    44440 產品顯示為 Fuses & Circuit Breakers

    2221 的 999+
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 140A, Breaking Capacity 5 kA, Fixed Mount
    • RS庫存編號 239-827
    • 製造零件編號 191632 NZMN2-MX140
    个
    HK$11,449.16
    Schneider Electric, ComPacT MCCB 4P 250A, Breaking Capacity 15 kA, Fixed Mount
    • RS庫存編號 429-200
    • 製造零件編號 C25N6TM250
    个
    HK$29,815.07
    Schneider Electric Industrial Surge Protection, 8kA, 400V (Volts), Clip-On Mount
    • RS庫存編號 340-981
    • 製造零件編號 A9L08300
    个
    HK$2,511.19
    Schneider Electric, PowerPact MCCB 3P 10A, Breaking Capacity 18 kA, DIN Rail Mount
    • RS庫存編號 428-687
    • 製造零件編號 NHGL36040
    个
    HK$12,813.95
    30A Fuse Holder for 10 x 38mm Fuse, 1P, 600V
    • RS庫存編號 262-613
    • 製造零件編號 CHM1DIU
    1 包 12 套
    HK$968.70
    Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)4, NZM4
    • RS庫存編號 248-256
    • 製造零件編號 100670 NZM4-XTVDV-60-NA
    个
    HK$2,873.92
    Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 8A, Breaking Capacity 25 kA, Fixed Mount
    • RS庫存編號 247-999
    • 製造零件編號 103035 NZMB2-S8-CNA
    个
    HK$4,873.57
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Fixed Mount
    • RS庫存編號 240-965
    • 製造零件編號 192048 NZMN2-PX100-BT
    个
    HK$14,750.91
    Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 65 kA, Fixed Mount
    • RS庫存編號 257-236
    • 製造零件編號 3VA5340-6GC41-2AA0
    个
    HK$25,697.80
    Eaton Fuse Holder Assembly Kit
    • RS庫存編號 258-914
    • 製造零件編號 288915 Z-D02/PE-35
    1 包 12 套
    HK$31.80
    TE Connectivity 30A Fuse Holder for 10 x 38mm Fuse, 3P, 600V
    • RS庫存編號 299-071
    • 製造零件編號 1SNF100027R0000
    个
    HK$89.91
    Littelfuse 6.3A T Glass Cartridge Fuse, 5 x 20mm
    • RS庫存編號 878-3340
    • 製造零件編號 21806.3HXP
    个（每托盘 50 ）
    HK$7.848
    Eaton 80A Cartridge Fuse, 76 x 403mm
    • RS庫存編號 228-614
    • 製造零件編號 7.2WFNHO80 7.2KV 80A 3" MOTOR START FUSE
    1 包 3 套
    HK$14,704.41
    Siemens, SENTRON MCCB 4P 225A, Breaking Capacity 35 kA, Fixed Mount
    • RS庫存編號 257-208
    • 製造零件編號 3VA5322-5EF41-2AA0
    个
    HK$20,173.20
    Eaton Eaton xEffect SASY 60i Busbar, 690V
    • RS庫存編號 243-375
    • 製造零件編號 138370 BBS-3/FL-C
    个（每托盘 10 ）
    HK$96.616
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 175A, Breaking Capacity 5 kA, Fixed Mount
    • RS庫存編號 231-996
    • 製造零件編號 107599 NZMH2-VEF175-BT-NA
    个
    HK$19,317.55
    Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 65 kA, Fixed Mount
    • RS庫存編號 257-306
    • 製造零件編號 3VA5325-6EC31-2AA0
    个
    HK$16,908.70
    Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 100 kA, Fixed Mount
    • RS庫存編號 257-241
    • 製造零件編號 3VA5340-7GC41-2AA0
    个
    HK$28,041.60
    Schneider Electric Resi9 Electronic Circuit Breaker 16A R9PDCS, Clip-On Type C
    • RS庫存編號 432-806
    • 製造零件編號 R9PDCS16
    个
    HK$5,266.99
    Schneider Electric Acti9 3+N/PE Phase Distribution Board, 8 Way, 250 A
    • RS庫存編號 339-635
    • 製造零件編號 SEA9BPN8E
    个
    HK$3,093.63
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