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

47282 產品顯示為 Fuses & Circuit Breakers

30 的 999+
TE Connectivity Thermal Magnetic Circuit Breakers - Potter & Brumfield W54 Single Pole 250V ac Voltage Rating Panel
  • RS庫存編號 240-8954
  • 製造零件編號 3-1393250-2
个 (以毎袋：100)
HK$51.169
Better World
Schneider Electric, Compact MCCB 4P 160A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS庫存編號 178-8224
  • 製造零件編號 LV426369
个
HK$5,956.09
ABB Tmax XT Trip Unit for use with XT2
  • RS庫存編號 236-6874
  • 製造零件編號 1SDA100110R1 Ekip LSI 100A XT2 3p
个
HK$9,759.21
Schneider Electric, ComPacT NSX MCCB 3P 40A, Breaking Capacity 25 kA, Panel Mount
  • RS庫存編號 654-756
  • 製造零件編號 IL0403P25
个
HK$3,285.07
RS PRO MCB, 1P, 10A Curve C, 240 → 415V AC, 6 kA Breaking Capacity
  • RS庫存編號 265-0188
个
HK$75.50
TE Connectivity Thermal Circuit Breaker - W28 SP Pole 32 V dc, 250 V ac Voltage Rating Panel Mount, 8A Current Rating
  • RS庫存編號 167-5728
  • 製造零件編號 W28-XQ1A-8
个
HK$35.20
Eaton 60A T Cartridge Fuse, 27 x 140mm
  • RS庫存編號 851-1630
  • 製造零件編號 FRS-R-60
个
HK$620.60
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 50A
  • RS庫存編號 221-0900
  • 製造零件編號 BGL36050LU
个
HK$7,109.40
Siemens 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 3P, 690V ac
  • RS庫存編號 396-297
  • 製造零件編號 3NC1093
个（每托盘 4 ）
HK$703.35
Siemens 1 Phase Surge Protector, 25kA, DIN Rail Mount
  • RS庫存編號 213-1322
  • 製造零件編號 5SD7424-1
个
HK$5,251.90
Schneider Electric RCBO, 40A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS庫存編號 339-340
  • 製造零件編號 SEE140C03
个
HK$1,462.66
Littelfuse PC Board Non Resettable Fuse, Radial 1A, 250V ac
  • RS庫存編號 895-1675
  • 製造零件編號 37211000411
个（每托盘 10 ）
HK$5.61
Schurter SMD Non Resettable Fuse 3.15A, 125 V dc, 250V ac
  • RS庫存編號 736-0769
  • 製造零件編號 3403.0171.24
个（每托盘 10 ）
HK$5.65
Schurter SMD Non Resettable Fuse 1.25A, 125 V dc, 250V ac
  • RS庫存編號 736-0744
  • 製造零件編號 3403.0167.24
个（每托盘 10 ）
HK$5.15
Littelfuse 80A Bolted Tag Fuse, 32V dc, 30mm
  • RS庫存編號 876-8000
  • 製造零件編號 0498080
个
HK$24.21
Littelfuse SMD Non Resettable Fuse 3A, 125V ac/dc
  • RS庫存編號 219-6248
  • 製造零件編號 0154003.DRT
个（每托盘 10 ）
HK$17.79
Eaton 4A British Standard Fuse, E1, 240V ac
  • RS庫存編號 418-704
  • 製造零件編號 SSD4
个（每托盘 5 ）
HK$19.176
Phoenix Contact CLIPLINE Thermal Circuit Breaker - UT 6-TMC Single Pole 250V Voltage Rating DIN Rail Mount, 5A Current
  • RS庫存編號 684-3591
  • 製造零件編號 0916607
个
HK$159.80
ABB 32A Centred Tag Fuse, NH000, 500V
  • RS庫存編號 779-9956
  • 製造零件編號 OFAF000H32 1SCA022627R0910
个
HK$41.59
Eaton 500A Centred Tag Fuse, NH2, 690 V, 700 V
  • RS庫存編號 182-1359
  • 製造零件編號 170M5810D
个 (以毎盒：3)
HK$5,785.733
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