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

23 的 999+
ABB F200 RCCB, 25A, 4 Pole, 100mA, Type AC, 230V ac
  • RS庫存編號 225-6118
  • 製造零件編號 2CSF204001R2250 F204 AC-25/0,1
个
HK$1,297.13
Schneider Electric IID RCCB, 40A, 4 Pole, 30mA, Type A, 380 → 415V ac
  • RS庫存編號 230-6688
  • 製造零件編號 A9R51440
个
HK$858.21
Better World
Siemens 5SM2645 RCCB, 25A, 2 Pole, 30mA, Type A, 230V ac
  • RS庫存編號 231-8372
  • 製造零件編號 5SV3312-6GV01
个（每托盘 36 ）
HK$645.086
Better World
Siemens SENTRON 5SV3xxx RCCB, 63A, 4 Pole, Type A, 400V ac
  • RS庫存編號 241-4456
  • 製造零件編號 5SV3846-8
个
HK$1,912.20
RS PRO Residential RCCBs, 40A, 4 Pole, 30mA, Type B, 400V
  • RS庫存編號 284-2376
个
HK$6,804.40
ABB F200 RCCB, 100A, 3+N Pole, 300mA, Type AC
  • RS庫存編號 538-3861
  • 製造零件編號 2CSF204001R3900 F204 AC-100/0,3
个
HK$1,984.90
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS庫存編號 238-3294
  • 製造零件編號 A9DK5620
个
HK$2,911.23
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS庫存編號 238-3265
  • 製造零件編號 A9DA6620
个
HK$3,300.61
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS庫存編號 238-3328
  • 製造零件編號 A9DS5620
个
HK$2,967.90
Eaton PXF-A RCCB, 16A, 1+N Pole, 30mA, Type A, 230V ac
  • RS庫存編號 490-040
  • 製造零件編號 236730 PXF-16/2/003-A
个
HK$946.60
Better World
Siemens RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, SENTRON Range
  • RS庫存編號 187-3280
  • 製造零件編號 5SV1316-6KK06
个
HK$807.80
ABB RCBO, 4A Current Rating, 1P+N Poles, 300mA Trip Sensitivity, System Pro M Compact Range
  • RS庫存編號 201-6872
  • 製造零件編號 2CSR255180R3044 DS201 C4 A300
个
HK$1,687.60
Littelfuse SMD Non Resettable Fuse 1A, 125V ac/dc
  • RS庫存編號 219-6226
  • 製造零件編號 0154001.DRT
个（每托盘 10 ）
HK$16.65
Eaton, Eaton Moeller Series NZM MCCB Molded Case Circuit Breaker 3P 1.2kA, Breaking Capacity 18 kA, Fixed Mount
  • RS庫存編號 247-150
  • 製造零件編號 102690 NS4-1000-NA
个
HK$45,601.33
ABB F200 RCCB, 40A, 4 Pole, 300mA, Type AC
  • RS庫存編號 537-7456
  • 製造零件編號 2CSF204001R3400 F204 AC-40/0,3
个
HK$836.00
Eaton 3A F Ceramic Cartridge Fuse, 6.3 x 25mm
  • RS庫存編號 412-560
  • 製造零件編號 TDC180-3A
个（每托盘 10 ）
HK$12.97
Schurter 2A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 870-1701
  • 製造零件編號 8020.5014
个（每托盘 50 ）
HK$6.044
ABB FH200 RCCB, 63A, 2 Pole, 30mA, Type A
  • RS庫存編號 186-3467
  • 製造零件編號 2CSF202124R1630
个
HK$983.60
Wickmann Resettable Fuse, 250V
  • RS庫存編號 174-0679
  • 製造零件編號 0242.200UR
个（每托盘 5 ）
HK$43.886
Wickmann 0.12A Resettable Fuse, 48V dc
  • RS庫存編號 174-0407
  • 製造零件編號 RF1343-000
毎卷：15000 个
HK$42,097.60
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