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

11 的 999+
Bourns 1.8A Resettable Fuse, 33V
  • RS庫存編號 691-7594
  • 製造零件編號 MF-SM185/33-2
个（每托盘 5 ）
HK$3.12
Littelfuse 0.125A Resettable Fuse, 30V dc
  • RS庫存編號 787-4186
  • 製造零件編號 1206L012WR
个（每托盘 10 ）
HK$2.32
Littelfuse 1.6A Resettable Fuse, 60V
  • RS庫存編號 712-7492
  • 製造零件編號 RKEF160
个（每托盘 10 ）
HK$3.75
ETA Thermal Circuit Breaker - 1140-E Single Pole 250V Voltage Rating Integral Mount, 4A Current Rating
  • RS庫存編號 728-8658
  • 製造零件編號 1140-E211-P1M1-4A
个
HK$121.88
Eaton RCD, 6A, 2 Pole, 30mA, Type C, 230V
  • RS庫存編號 922-8692
  • 製造零件編號 236022 PKNM-6/1N/C/003-A-MW
个
HK$1,113.70
Better World
Schneider Electric iID RCCB, 80A, 4 Pole, 30mA, Type AC, 415V ac
  • RS庫存編號 248-3693
  • 製造零件編號 A9R11480
个
HK$4,124.70
Better World
Schneider Electric Acti9 iIG40K RCCB, 25A, 3+N Pole, 30mA, Type AC, 380 → 415V ac
  • RS庫存編號 238-3471
  • 製造零件編號 A9R69725
个
HK$2,799.66
Better World
Schneider Electric Acti9 iIG40K RCCB, 25A, 3+N Pole, 300mA, Type AC, 380 → 415V ac
  • RS庫存編號 238-3477
  • 製造零件編號 A9R79725
个
HK$2,903.80
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS庫存編號 225-8816
  • 製造零件編號 5SV1316-6LK06
个
HK$1,033.70
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
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, Sentron Range
  • RS庫存編號 243-6187
  • 製造零件編號 5SU1326-6FP06
个
HK$888.80
Schneider Electric Acti9 Reds RCCB, 63A, 300mA, 230V
  • RS庫存編號 357-883
  • 製造零件編號 A9CR5263
个
HK$8,770.93
Eaton PC Board Non Resettable Fuse, Radial 1.25A, 300V ac
  • RS庫存編號 169-9518
  • 製造零件編號 SR-5H-1-25A-BK
个 (以毎袋：200)
HK$16.591
Eaton xEffect RCCB, 25A, 4 Pole, 30mA, Type B, 456V ac
  • RS庫存編號 262-727
  • 製造零件編號 306415 FRCdM-25/4/003-G/Bfq-400
个
HK$8,961.80
Better World
Siemens RCBO, 2A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, SENTRON Range
  • RS庫存編號 187-3284
  • 製造零件編號 5SV1316-7KK02
个
HK$978.10
RS PRO 16A British Standard Fuse, E1, 240V ac
  • RS庫存編號 521-2860
个（每托盘 5 ）
HK$32.80
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS庫存編號 914-4051
  • 製造零件編號 2CSR255051R1204 DSE201 C20 AC30 - N Blue
个
HK$684.40
Littelfuse 0.5A Resettable Fuse, 32V dc
  • RS庫存編號 712-7512
  • 製造零件編號 AHEF050
个（每托盘 10 ）
HK$4.29
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 6A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS庫存編號 790-8850
  • 製造零件編號 A9F44106
个
HK$273.40
Eaton 30A Ceramic Cartridge Fuse, 30 x 57mm
  • RS庫存編號 182-1689
  • 製造零件編號 30LR85
个
HK$108.69
每頁顯示的結果
1
11
2365

相关链接