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

    44887 產品顯示為 Fuses & Circuit Breakers

    2215 的 999+
    Schneider Electric, PowerPact Circuit breaker 3P 80A, Breaking Capacity 35 kA, DIN Rail Mount
    • RS庫存編號 357-940
    • 製造零件編號 BGL36080LU
    个
    HK$10,056.10
    Eaton Eaton xEffect Conversion Kit for use with K3X240
    • RS庫存編號 243-933
    • 製造零件編號 029769 D-K3X240
    个
    HK$865.90
    Schneider Electric, KS Series
    • RS庫存編號 357-778
    • 製造零件編號 KSB160DD411
    个
    HK$28,970.47
    Schneider Electric Acti9 3 Phase Distribution Board, 20 Way, 125 A
    • RS庫存編號 339-646
    • 製造零件編號 SEB48S12125
    个
    HK$41,354.42
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 50 kA, Plug In
    • RS庫存編號 247-829
    • 製造零件編號 168480 NZMN3-VE250-SVE
    个
    HK$24,042.31
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 160A, Breaking Capacity 5 kA, Fixed Mount
    • RS庫存編號 243-296
    • 製造零件編號 147391 NZMN2-VE160-BT
    个
    HK$12,137.41
    Schneider Electric ComPacT Control Unit for use with Compact NS630b to NS1600
    • RS庫存編號 346-759
    • 製造零件編號 C60WM
    个
    HK$13,490.29
    Schneider Electric, PowerPact MCCB 3P 60A, Breaking Capacity 18 kA, DIN Rail Mount
    • RS庫存編號 429-281
    • 製造零件編號 NHGL36060U31X
    个
    HK$20,747.16
    Schneider Electric, PowerPact Circuit breaker 4P 30A, Breaking Capacity 35 kA, DIN Rail Mount
    • RS庫存編號 357-942
    • 製造零件編號 BGL46030LU
    个
    HK$11,940.24
    Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 3 kA, Fixed Mount
    • RS庫存編號 248-662
    • 製造零件編號 100779 NZMH2-VE250-S1
    个
    HK$25,251.40
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Fixed Mount
    • RS庫存編號 249-045
    • 製造零件編號 192239 NZMN2-PX100
    个
    HK$14,350.98
    Eaton Eaton Moeller U-PKZ0 Undervoltage Release for use with Motor Protective Circuit Breaker
    • RS庫存編號 243-697
    • 製造零件編號 073145 U-PKZ0(208V60HZ)
    个
    HK$416.67
    Schneider Electric Resi9 R9E MCB, 1P, 16A, 230V AC
    • RS庫存編號 358-445
    • 製造零件編號 R9ECL616
    个
    HK$979.27
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 5 kA, Fixed Mount
    • RS庫存編號 239-820
    • 製造零件編號 191612 NZMN3-4-AX400-BT
    个
    HK$27,948.60
    Schneider Electric Resi9 R9E MCB, 1P, 10A, 230V AC
    • RS庫存編號 357-825
    • 製造零件編號 R9ETC610
    个
    HK$3,199.81
    Schneider Electric Acti9 1 Phase Distribution Board Enclosure, 34 Way
    • RS庫存編號 339-624
    • 製造零件編號 SEA9BN8SXS
    个
    HK$3,275.11
    Schneider Electric, PowerPact Circuit breaker 3P 110A, Breaking Capacity 18 kA, DIN Rail Mount
    • RS庫存編號 357-128
    • 製造零件編號 BDL36110LU
    个
    HK$8,921.05
    Bourns Surface Mount Fuse 4A, 50 V dc, 63 V dc
    • RS庫存編號 245-9206P
    • 製造零件編號 SF-0603SPA400R-2
    个 (以每卷裝提供)
    HK$8.99
    Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 5 kA, Withdrawable
    • RS庫存編號 243-029
    • 製造零件編號 191591 NZMN3-VX400-T-AVE
    个
    HK$29,167.00
    Schneider Electric, PowerPact MCCB 3P 60A, Breaking Capacity 18 kA, DIN Rail Mount
    • RS庫存編號 346-685
    • 製造零件編號 NHJL36060
    个
    HK$15,772.87
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