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

47290 產品顯示為 Fuses & Circuit Breakers

14 的 999+
Better World
Schneider Electric RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Acti 9 Range
  • RS庫存編號 790-9222
  • 製造零件編號 A9D31832
个
HK$1,383.60
RS PRO 10A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 414-061
个（每托盘 10 ）
HK$11.82
ABB System Pro M Compact S200M MCB, 2P, 20A Curve K, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS庫存編號 200-151
  • 製造零件編號 2CDS272001R0487
个
HK$2,107.05
Littelfuse PC Board Non Resettable Fuse, Radial 50mA, 125V ac
  • RS庫存編號 738-3309
  • 製造零件編號 39600500000
个（每托盘 10 ）
HK$14.60
Better World
Schneider Electric, ComPacT NSX MCCB 3P 100A, Breaking Capacity 90 kA, Fixed Mount
  • RS庫存編號 254-6300
  • 製造零件編號 C10N3TM100
个
HK$6,285.80
Eaton 13A F Ceramic Cartridge Fuse, 6.3 x 25mm
  • RS庫存編號 412-605
  • 製造零件編號 TDC180-13A
个（每托盘 10 ）
HK$7.33
Better World
Schneider Electric Acti 9 iC60H MCB, 3P, 32A Curve C, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS庫存編號 791-3398
  • 製造零件編號 A9F54332
个
HK$843.90
Eaton 350A British Standard Fuse, FM, 690 V ac, 500V dc, 80 → 85mm
  • RS庫存編號 156-9112
  • 製造零件編號 350FM
个
HK$1,138.70
RS PRO 32A British Standard Fuse, F1, 550V ac
  • RS庫存編號 521-2955
个（每托盘 5 ）
HK$57.50
ABB, Tmax MCCB 3P 400A, Fixed Mount
  • RS庫存編號 237-5965
  • 製造零件編號 1SDA054337R1 T5S400 FF PR222-LSI 400A
个
HK$13,389.30
Littelfuse 0.5A Resettable Fuse, 32V dc
  • RS庫存編號 712-7512
  • 製造零件編號 AHEF050
个（每托盘 10 ）
HK$4.29
Eaton xEffect MCB, 2P, 16A Curve C, 240 → 415V AC, 10 kA Breaking Capacity
  • RS庫存編號 847-3282
  • 製造零件編號 278760 FAZ-C16/2
个
HK$479.10
Eaton xEffect MCB, 3P, 16A Curve C, 230 → 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 769-4573
  • 製造零件編號 239148 FAZ6-C16/3
个
HK$700.50
RS PRO 32A NH Fuse, NH000, 415V ac
  • RS庫存編號 221-3675
个
HK$133.53
Better World
ABB System Pro M Compact S200 MCB, 2P, 2A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 746-7699
  • 製造零件編號 2CDS252001R0024 S202-C2
个
HK$526.40
Legrand DX3 Circuit Breaker, 3P, 25A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 266-1332
  • 製造零件編號 408061
个
HK$2,112.51
ETA Thermal Magnetic Circuit Breaker - 2210 Single Pole DIN Rail Mount, 16A Current Rating
  • RS庫存編號 282-8771
  • 製造零件編號 2210-T210-K0M1-H121-16A
个
HK$378.00
Better World
ABB System Pro M Compact S200M MCB, 2P, 16A Curve K
  • RS庫存編號 231-9729
  • 製造零件編號 2CDS272001R0467 S202M K 16A - 15 KA
毎盒：1 个
HK$574.60
Better World
Schneider Electric RCBO, 6A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type C, Multi 9 Range
  • RS庫存編號 214-2050
  • 製造零件編號 M9D11606
个
HK$1,275.30
Mersen 10A 5SF Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 816-8933
  • 製造零件編號 X090525
个（每托盘 10 ）
HK$5.04
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