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

4 的 999+
Legrand 20A F Ceramic Cartridge Fuse, 8.5 x 32mm
  • RS庫存編號 293-8222
  • 製造零件編號 0 123 20
个（每托盘 10 ）
HK$15.22
SIBA 200A Centred Tag Fuse, NH1, 500V ac
  • RS庫存編號 421-788
  • 製造零件編號 20-003-13/200A
个
HK$218.20
Better World
Schneider Electric Acti 9 iC60H MCB, 2P, 63A Curve D, 440V AC, 100 → 133V DC, 10 kA Breaking Capacity
  • RS庫存編號 791-3543
  • 製造零件編號 A9F55263
个
HK$869.90
Eaton RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, PXK Range
  • RS庫存編號 183-3545
  • 製造零件編號 236964 PXK-C16/1N/003-A
个
HK$595.40
Better World
Siemens Sentron 5SY4 MCB, 2P, 10A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 772-1303
  • 製造零件編號 5SY4210-7
个
HK$720.70
RS PRO 3A T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 911-3405
个（每托盘 10 ）
HK$3.39
RS PRO 1A T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 563-558
个（每托盘 10 ）
HK$3.07
Better World
ABB System Pro M Compact S200 MCB, 2P, 16A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 746-7863
  • 製造零件編號 2CDS252001R0161 S202-D16
个
HK$490.97
Sato Parts 10A PCB Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS庫存編號 372-1047
  • 製造零件編號 F-100
个（每托盘 5 ）
HK$13.84
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 610-9721
个（每托盘 10 ）
HK$2.80
RS PRO 250mA F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 563-469
个（每托盘 10 ）
HK$2.22
Better World
Schneider Electric MCB
  • RS庫存編號 776-3644
  • 製造零件編號 A9N61690
个
HK$1,242.57
Better World
Schneider Electric Acti 9 C60H-DC MCB, 2P, 13A Curve C, 500V DC, 20 kA Breaking Capacity
  • RS庫存編號 776-3200
  • 製造零件編號 A9N61529
个
HK$1,511.40
Eaton 20A Rail Mount Fuse Holder for A1 Fuse, 1P, 690V ac
  • RS庫存編號 413-901
  • 製造零件編號 RS20H
个
HK$737.00
Littelfuse 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 541-4410
  • 製造零件編號 0217002.MXP
个（每托盘 10 ）
HK$2.78
ETA Thermal Magnetic Circuit Breaker - 201 Single Pole, 15A Current Rating
  • RS庫存編號 333-287
  • 製造零件編號 201-15A
个
HK$311.60
Better World
Siemens Sentron 5SY4 MCB, 3P, 3A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS庫存編號 622-0092
  • 製造零件編號 5SY4303-7
个
HK$786.60
Better World
ABB System Pro M Compact S200 MCB, 2P, 32A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS庫存編號 746-7879
  • 製造零件編號 2CDS252001R0321 S202-D32
个
HK$394.60
Better World
Siemens SENTRON 5SY5 MCB, 2P, 32A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS庫存編號 212-8892
  • 製造零件編號 5SY5232-7
个
HK$1,574.10
ETA Thermal Circuit Breaker - 106-P30 Single Pole 250V Voltage Rating Panel Mount, 4A Current Rating
  • RS庫存編號 335-974
  • 製造零件編號 106-P30-000040-4A
个
HK$164.90
每頁顯示的結果
1
4
2365

相关链接