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

46793 產品顯示為 Fuses & Circuit Breakers

2238 的 999+
暫時缺貨
Better World
Schneider Electric Vertical Distribution Busbar Trunking, 1.5m, 500A, Canalis KS Series
  • RS庫存編號 211-0472
  • 製造零件編號 KSA500EV4153
个
HK$9,647.10
暫時缺貨
Better World
Schneider Electric Straight Busbar Trunking, 3m, 25A, KBA Series
  • RS庫存編號 219-8858
  • 製造零件編號 KBB25ED2303W
个
HK$1,015.10
暫時缺貨
Better World
Schneider Electric Straight Busbar Trunking, 3m, 25A, KBA Series
  • RS庫存編號 219-8852
  • 製造零件編號 KBA25ED4302W
个（每托盘 6 ）
HK$975.362
暫時缺貨
Better World
Schneider Electric Straight Busbar Trunking, 3m, 25A, KBA Series
  • RS庫存編號 219-8850
  • 製造零件編號 KBA25ED2305W
个（每托盘 6 ）
HK$1,240.958
暫時缺貨
Eaton BB-EV 2 Phase Busbar, 690V, 36mm Pitch
  • RS庫存編號 244-240
  • 製造零件編號 168863 BB-EVP-16/N-2MU
个
HK$469.20
暫時缺貨
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 5m, 500A, Canalis KS Series
  • RS庫存編號 211-0471
  • 製造零件編號 KSA500ED45018
个
HK$25,272.30
暫時缺貨
Eaton BBA Busbar Adapter 3 Phase Busbar, 690V
  • RS庫存編號 230-808
  • 製造零件編號 116901 BBA2-80/2TS-S
1 包 4 套
HK$2,459.00
暫時缺貨
Better World
Schneider Electric Straight Busbar Trunking, 3m, 25A, KBA Series
  • RS庫存編號 219-8848
  • 製造零件編號 KBA25ED2303W
个（每托盘 6 ）
HK$798.712
暫時缺貨
ABB EV1120 Neutral Phase Busbar
  • RS庫存編號 204-090
  • 製造零件編號 1STQ001015A0000
个
HK$8,714.89
暫時缺貨
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 2m, 630A, Canalis KS Series
  • RS庫存編號 211-0479
  • 製造零件編號 KSA630ED4206
个
HK$23,046.10
暫時缺貨
Better World
Schneider Electric Straight Busbar Trunking, 3m, 40A, KBB Series
  • RS庫存編號 219-8868
  • 製造零件編號 KBB40ED44305W
个
HK$2,345.95
暫時缺貨
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 3m, 500A, Canalis KS Series
  • RS庫存編號 211-0470
  • 製造零件編號 KSA500ED4306
个
HK$15,256.70
暫時缺貨
Schneider Electric Straight Busbar Trunking, 3m, 40A, Canalis Series
  • RS庫存編號 275-8809
  • 製造零件編號 KBA40ED4303W
个
HK$1,093.68
暫時缺貨
Better World
Schneider Electric Busbar Trunking Jointing Device, 800A, Canalis KS Series
  • RS庫存編號 211-0488
  • 製造零件編號 KSA800FA4
个
HK$15,292.10
暫時缺貨
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 3m, 250A, KS Series
  • RS庫存編號 219-8915
  • 製造零件編號 KSA250ED43012
个
HK$10,669.73
有庫存
Schneider Electric PrismaSeT Busbar
  • RS庫存編號 130-979
  • 製造零件編號 LVS04455
个
HK$10,812.90
暫時缺貨
Schneider Electric Canalis 3 Phase Busbar, 230-400V
  • RS庫存編號 212-324
  • 製造零件編號 KBA40ED4303TW
1 包 6 套
HK$11,886.70
暫時缺貨
Eaton Eaton xEffect Busbar
  • RS庫存編號 248-411
  • 製造零件編號 081209 CU-BAND4X16X0,8-BK
个
HK$523.90
暫時缺貨
Eaton Eaton xEffect Busbar, 1000 V ac, 1500 V ac, 6mm Pitch
  • RS庫存編號 243-716
  • 製造零件編號 081222 CU-BAND6X16X0,8-BU
个
HK$735.90
暫時缺貨
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 3m, 250A, KS Series
  • RS庫存編號 219-8916
  • 製造零件編號 KSA250ED4306
个
HK$8,935.30
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