Fuses | Circuit Breakers | Circuit Safety | RS
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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

    44740 產品顯示為 Fuses & Circuit Breakers

    2214 的 999+
    Eaton BCZ-A Terminal for use with LV Systems
    • RS庫存編號 248-685
    • 製造零件編號 101590 BCZ-A-KLT
    个
    HK$82.87
    Schneider Electric, PowerPact MCCB 3P 250A, Breaking Capacity 14 kA, DIN Rail Mount
    • RS庫存編號 428-700
    • 製造零件編號 NJDF36250TW
    个
    HK$28,403.87
    400A Tag Fuse, 71 x 150mm, 690V
    • RS庫存編號 262-751
    • 製造零件編號 400NHG3B-690 NH FUSE 400A 690V gG SIZE 3
    1 包 3 套
    HK$677.30
    Siemens SENTRON 5SL60 MCB, 1P + N, 20A Curve C, 230V AC, 60V DC, 6 kA Breaking Capacity
    • RS庫存編號 328-545
    • 製造零件編號 5SL6020-7
    个
    HK$630.59
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 5 kA, Withdrawable
    • RS庫存編號 231-402
    • 製造零件編號 113535 NZMN3-4-A400/250-AVE
    个
    HK$31,082.94
    Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 12A, Breaking Capacity 150 kA, Fixed Mount
    • RS庫存編號 248-466
    • 製造零件編號 103048 NZMH2-S12-CNA
    个
    HK$5,440.91
    Schneider Electric, ComPacT MCCB 3P 400A, Breaking Capacity 10 kA, Fixed Mount
    • RS庫存編號 341-221
    • 製造零件編號 C40F37E400
    个
    HK$87,365.94
    Phoenix Contact PTCB Electronic Circuit Breaker 8A 24V PTCB, 1 channels , DIN Rail Type E
    • RS庫存編號 535-869
    • 製造零件編號 1388391
    个
    HK$307.41
    Eaton xEnergy Light Distribution Board
    • RS庫存編號 231-082
    • 製造零件編號 116528 XLSPP208
    个
    HK$1,320.70
    Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 600A, Breaking Capacity 100 kA, Fixed Mount
    • RS庫存編號 256-473
    • 製造零件編號 3VA5560-7EC46-0AA0
    个
    HK$41,350.90
    Siemens, SENTRON MCCB 4P 250A, Breaking Capacity 35 kA, Fixed Mount
    • RS庫存編號 256-497
    • 製造零件編號 3VA5325-5GC41-2AA0
    个
    HK$19,168.70
    Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 65 kA, Fixed Mount
    • RS庫存編號 257-395
    • 製造零件編號 3VA5340-6EC31-0AA0
    个
    HK$18,080.60
    Eaton xEffect SASY 60i Busbar
    • RS庫存編號 252-782
    • 製造零件編號 194595 BBT-S60-20x10-CI
    个
    HK$252.98
    Eaton xEffect FAZ MCB, 4P, 6A Curve C, 440V AC, 60V DC, 10 kA Breaking Capacity
    • RS庫存編號 246-831
    • 製造零件編號 190923 FAZ-C6/4-NA
    个
    HK$2,706.50
    PTC Resettable Fuse 33V 1.1A 2920
    • RS庫存編號 560-340
    • 製造零件編號 0ZCF0110FF2C
    个
    HK$2.10
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 5 kA, Withdrawable
    • RS庫存編號 243-078
    • 製造零件編號 192269 NZMN3-PX400-TAZ-AVE
    个
    HK$51,414.27
    Schneider Electric, PowerPact Circuit breaker 4P 30A, Breaking Capacity 100 kA, Clip-On
    • RS庫存編號 438-822
    • 製造零件編號 BJL46030LU
    个
    HK$15,296.95
    Schneider Electric, PowerPact MCCB 2P 60A, Breaking Capacity 65 kA, Clip-On
    • RS庫存編號 341-593
    • 製造零件編號 BJF26060
    个
    HK$8,005.30
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 140A, Breaking Capacity 5 kA, Plug In
    • RS庫存編號 243-041
    • 製造零件編號 191623 NZMN2-MX140-SVE
    个
    HK$12,090.91
    Eaton Eaton Moeller Series IZMX/INX Interlock for use with INX16…, INX40…, IZMX16…, IZMX40…
    • RS庫存編號 246-515
    • 製造零件編號 184231 IZMX-KLP-SO-CES-1
    个
    HK$3,422.66
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