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

47265 產品顯示為 Fuses & Circuit Breakers

4 的 999+
有庫存
Schurter LBC Fuse Kit
  • RS庫存編號 167-9219
  • 製造零件編號 7189.0009
个
HK$1,966.50
有庫存
RS PRO F, T Fuse Kit
  • RS庫存編號 893-8534
个
HK$504.00
暫時缺貨
Eaton RCBO, 40A Current Rating, 2P Poles, 100mA Trip Sensitivity, Type A, Type B, FRBm6 Range
  • RS庫存編號 123-326
  • 製造零件編號 170816 FRBM6-B40/2/01-LIA
个
HK$1,712.66
有庫存
Europa EUC3P EUC MCB, 3P, 16A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 849-6585
  • 製造零件編號 EUC3P16C
个
HK$217.70
有庫存
Mersen 6A Ceramic Cartridge Fuse, 10 x 38mm
  • RS庫存編號 188-7044
  • 製造零件編號 F222208
个（每托盘 10 ）
HK$14.27
有庫存
Littelfuse PC Board Non Resettable Fuse, Axial 500mA, 125V ac/dc
  • RS庫存編號 541-3259
  • 製造零件編號 0251.500NRT1L
个（每托盘 10 ）
HK$6.60
有庫存
Littelfuse PC Board Non Resettable Fuse, Axial 2A, 125V ac/dc
  • RS庫存編號 541-3287
  • 製造零件編號 251002.NRT1L
个（每托盘 10 ）
HK$5.05
有庫存
Panasonic SMD Non Resettable Fuse 2A, 32V dc
  • RS庫存編號 759-4785
  • 製造零件編號 ERBRE2R00V
个（每托盘 10 ）
HK$1.78
有庫存
Schurter SMD Non Resettable Fuse 4A, 125V ac/dc
  • RS庫存編號 782-3730
  • 製造零件編號 7010.9870.63
个（每托盘 10 ）
HK$16.75
有庫存
Schurter SMD Non Resettable Fuse 2A, 32V ac/dc
  • RS庫存編號 131-555
  • 製造零件編號 3412.0119.22
个（每托盘 10 ）
HK$4.85
有庫存
Bourns Non Resettable Fuse 750mA, 125V ac
  • RS庫存編號 191-4617
  • 製造零件編號 SF-2410FP075T-2
个
HK$4.28
有庫存
Bourns Surface Mount Fuse 5A, 65V dc
  • RS庫存編號 245-9227
  • 製造零件編號 SF-1206F500M-2
个
HK$4.96
最後的 RS 庫存
RS PRO 25A Bolted Tag Fuse, A2, 250 V dc, 690V ac, 73mm
  • RS庫存編號 221-3711
毎包：5 个
HK$326.70
有庫存
Schneider Electric Thermal Circuit Breaker - GB2 Single Pole 277V ac Voltage Rating DIN Rail Mount, 10A Current Rating
  • RS庫存編號 312-3718
  • 製造零件編號 GB2CB16
个
HK$374.90
有庫存
Mersen 700A size 32 FF Square Body Fuse, aR, 700V
  • RS庫存編號 304-2164
  • 製造零件編號 N300070
个
HK$2,091.90
有庫存
Eaton 32A British Standard Fuse, A2, 550V ac, 73mm
  • RS庫存編號 413-377
  • 製造零件編號 AAO32
个（每托盘 5 ）
HK$83.62
有庫存
RS PRO 6.3A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 610-9737
个（每托盘 10 ）
HK$2.72
有庫存
Mersen 800mA F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 270-3063
  • 製造零件編號 K090514
个 (以毎盒：10)
HK$4.46
有庫存
Better World
ABB System Pro M Compact S200M MCB, 2P, 32A Curve D
  • RS庫存編號 231-9727
  • 製造零件編號 2CDS272001R0321 S202M D 32A - 15 KA
毎盒：1 个
HK$455.30
暫時缺貨
Better World
ABB SN201 MCB, 2P, 6A Curve C, 230V AC, 6 kA Breaking Capacity
  • RS庫存編號 231-9972
  • 製造零件編號 2CSS255101R0064 SN201-C6 -
毎盒：1 个
HK$354.90
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