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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

    2217 的 999+
    Eaton 71A Cartridge Fuses, 63.5 x 359mm
    • RS庫存編號 245-936
    • 製造零件編號 12OHGMA71
    1 包 3 套
    HK$7,191.58
    Siemens, SENTRON MCCB 4P 300A, Breaking Capacity 100 kA, Fixed Mount
    • RS庫存編號 257-268
    • 製造零件編號 3VA5330-7EF41-2AA0
    个
    HK$29,380.90
    Eaton Terminal Cover for use with N(S)3-4, NZM3-4, NZM3-4-XKV70(-2), PN3-4
    • RS庫存編號 247-639
    • 製造零件編號 132675 NZM3-4-XKSAV
    个
    HK$1,116.08
    Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - BGL 4 Pole 525V Voltage Rating Clip-On, 35A Current
    • RS庫存編號 358-216
    • 製造零件編號 BGL46035LU
    个
    HK$11,940.24
    Siemens, SENTRON MCCB 3P 450A, Breaking Capacity 100 kA, Fixed Mount
    • RS庫存編號 257-249
    • 製造零件編號 3VA5445-7EC31-0AA0
    个
    HK$25,865.20
    TE Connectivity TE Connectivity Thermal Circuit Breaker - Potter & Brumfield W58 Single Pole 50 V ac/dc, 250 V ac/dc
    • RS庫存編號 474-001
    • 製造零件編號 1-1393249-2
    1 托盘 25 套
    HK$1,805.90
    Eaton 5A T Melamine Cartridge Fuse, 1.5 x 0.41in
    • RS庫存編號 261-345
    • 製造零件編號 LP-CC-5
    1 包 10 套
    HK$4,528.50
    Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 2A, Breaking Capacity 50 kA, Fixed Mount
    • RS庫存編號 247-995
    • 製造零件編號 103026 NZMN1-S2-CNA
    个
    HK$4,529.44
    Siemens, SENTRON MCCB 3P 225A, Breaking Capacity 65 kA, Fixed Mount
    • RS庫存編號 257-460
    • 製造零件編號 3VA5322-6EC31-0AA0
    个
    HK$15,234.50
    RS PRO 20A T Ceramic Cartridge Fuse, 6.3 x 32mm
    • RS庫存編號 180-075
    1 包 10 套
    HK$248.81
    Schneider Electric Acti9 3, 3+N Phase Extension Box, 160 A
    • RS庫存編號 339-641
    • 製造零件編號 SEA9PNI1603
    个
    HK$6,245.83
    Eaton Eaton Moeller NZM Door Coupling Handle for use with N(S)2, NZM2
    • RS庫存編號 247-078
    • 製造零件編號 100676 NZM2-XTVDV-0-NA
    个
    HK$1,060.28
    Siemens, SENTRON MCCB 2P 225A, Breaking Capacity 35 kA, Fixed Mount
    • RS庫存編號 257-456
    • 製造零件編號 3VA5322-5EC61-0AA0
    个
    HK$11,216.60
    Siemens 5SM28 RCCB, 40A, 2 Pole, Type A, 230V
    • RS庫存編號 328-318
    • 製造零件編號 5SM2822-8
    个
    HK$1,850.84
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 5 kA, Fixed Mount
    • RS庫存編號 240-932
    • 製造零件編號 191642 NZMN2-4-VX100
    个
    HK$11,439.86
    Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 5A, Breaking Capacity 150 kA, Fixed Mount
    • RS庫存編號 248-001
    • 製造零件編號 103046 NZMH2-S5-CNA
    个
    HK$5,440.91
    Eaton Z-R24 ICS-R16 MCB, 16A, 240V AC
    • RS庫存編號 261-908
    • 製造零件編號 ICS-R16A024B100 Z-R24/16-10
    1 包 2 套
    HK$481.10
    FUSE 125V PICO II FA RoHS 4A
    • RS庫存編號 552-978
    • 製造零件編號 0251004.MAT1L
    毎包：100 个
    HK$446.60
    Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 8A, Breaking Capacity 50 kA, Fixed Mount
    • RS庫存編號 240-634
    • 製造零件編號 103041 NZMN2-S8-CNA
    个
    HK$5,673.43
    Circuit Breaker,25 A,3 + N
    • RS庫存編號 611-285
    • 製造零件編號 PLSM-C25/3N-MW
    个
    HK$1,001.60
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