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

9 的 999+
Phoenix Contact Surge Protector, DIN Rail Mount
  • RS庫存編號 207-2739
  • 製造零件編號 2906824
个
HK$1,317.70
Okaya Electric Industries 1 Phase Surge Protector, 5kA, Surface Mount Mount
  • RS庫存編號 190-2015
  • 製造零件編號 LV275DI-Q4
个
HK$431.20
Phoenix Contact Surge Protector, 250V ac, DIN Rail Mount
  • RS庫存編號 801-6270
  • 製造零件編號 2950077
个
HK$601.10
Littelfuse SMD Non Resettable Fuse 500mA, 125V ac/dc
  • RS庫存編號 541-3350P
  • 製造零件編號 0451.500MRL
个 (以每卷裝提供)
HK$7.85
Eaton xEffect MCB, 2P, 3A Curve D, 240 → 415V AC, 10 kA Breaking Capacity
  • RS庫存編號 847-3560
  • 製造零件編號 278773 FAZ-D3/2
个
HK$639.80
ETA Thermal Circuit Breaker - 1410-F Single Pole 240V Voltage Rating Panel Mount, 5A Current Rating
  • RS庫存編號 409-839
  • 製造零件編號 1410-F110-P1F1-W14QB4-5A
个
HK$235.00
Eaton xEffect MCB, 1P, 25A Curve D, 230 → 400V AC, 6 kA Breaking Capacity
  • RS庫存編號 769-4772
  • 製造零件編號 168065 FAZ6-D25/1
个
HK$185.70
Littelfuse 5A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 541-4707
  • 製造零件編號 0215005.MXP
个（每托盘 10 ）
HK$10.10
Eaton 60A Ceramic Cartridge Fuse, 23 x 57mm
  • RS庫存編號 182-1483
  • 製造零件編號 60KR85
个 (以毎盒：20)
HK$60.475
Better World
Siemens Sentron 5SY6 MCB, 3P, 32A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS庫存編號 489-6473
  • 製造零件編號 5SY6332-7
个
HK$926.00
Eaton 10A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 537-0966
  • 製造零件編號 S500-10-R
个（每托盘 10 ）
HK$4.38
Eaton RCCB, 16A, 2 Pole, 30mA, Type A, 230V ac
  • RS庫存編號 227-0690
  • 製造零件編號 267440 PFGM-16/2/003-A
个
HK$2,456.96
Eaton 20A Rail Mount Fuse Holder for A1 Fuse, 1P, 690V ac
  • RS庫存編號 415-064
  • 製造零件編號 RS20HWH
个
HK$1,164.10
RS PRO 200A Solid Link for B2 Fuses
  • RS庫存編號 242-1083
个
HK$115.20
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating Panel Mount, 10A Current
  • RS庫存編號 167-5677
  • 製造零件編號 W28-XQ1A-10
个
HK$35.80
Eaton 80A Bolted Tag Fuse, B1, 660 V ac, 350V dc
  • RS庫存編號 182-1659
  • 製造零件編號 TC80
个
HK$580.14
Eaton 40A Bolted Tag Fuse, 250 V dc, 500V ac, 111mm
  • RS庫存編號 181-8687
  • 製造零件編號 BD40
个
HK$571.80
Siemens 50A Centred Tag Fuse, NH00, 690V ac
  • RS庫存編號 203-2127
  • 製造零件編號 3NA3820-6
个（每托盘 3 ）
HK$191.70
Better World
Siemens Sentron 5SY6 MCB, 1P, 500mA Curve C, 230V AC, 6 kA Breaking Capacity
  • RS庫存編號 521-4989
  • 製造零件編號 5SY6105-7
个
HK$185.50
Altech Thermal Circuit Breaker - V-EA 2 Pole 277V Voltage Rating DIN Rail Mount, 20A Current Rating
  • RS庫存編號 899-1774
  • 製造零件編號 2E20UM
个
HK$295.90
每頁顯示的結果
1
9
2365

相关链接