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

7 的 999+
Eaton 63A Offset Tag Fuse, 440V ac
  • RS庫存編號 182-1739
  • 製造零件編號 XS63
个
HK$674.30
Okaya Electric Industries 1 Phase Surge Protector, 5kA, Surface Mount Mount
  • RS庫存編號 190-2015
  • 製造零件編號 LV275DI-Q4
个
HK$431.20
ABB System Pro M Compact S200 M UC MCB, 2P, 16A Curve K, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS庫存編號 201-019
  • 製造零件編號 2CDS272061R0467
个
HK$1,955.29
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
Better World
Siemens SENTRON 5SY6 MCB, 4P, 32A Curve C, 400V AC, 72V DC, 5 kA Breaking Capacity
  • RS庫存編號 212-8896
  • 製造零件編號 5SY6432-7
个
HK$1,767.30
Better World
Siemens SENTRON 5SY6 MCB, 2P, 32A Curve C, 400V AC, 72V DC, 6 kA Breaking Capacity
  • RS庫存編號 209-6017
  • 製造零件編號 5SY6232-7
个
HK$821.70
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
Littelfuse SMD Non Resettable Fuse 500mA, 125V ac/dc
  • RS庫存編號 541-3350
  • 製造零件編號 0451.500MRL
个（每托盘 10 ）
HK$7.85
RS PRO PC Board Non Resettable Fuse, Axial 2A, 250V ac
  • RS庫存編號 764-9586
个（每托盘 10 ）
HK$3.89
RS PRO PC Board Non Resettable Fuse, Axial 4A, 250V ac
  • RS庫存編號 764-9560
个（每托盘 10 ）
HK$4.77
Littelfuse PC Board Non Resettable Fuse, Radial 3.15A, 250V ac
  • RS庫存編號 226-0585
  • 製造零件編號 3721315000
个（每托盘 10 ）
HK$3.54
Better World
Siemens, SENTRON MCCB 3P 250A, Breaking Capacity 55 kA
  • RS庫存編號 209-7030
  • 製造零件編號 3VA1225-5EF32-0AA0
个
HK$8,151.00
Eaton xPole MCB, 2P, 10A Curve C, 48V DC, 10 kA Breaking Capacity
  • RS庫存編號 864-4358
  • 製造零件編號 242401 PLSM-C10/2-MW
个
HK$524.20
Better World
ABB System Pro M Compact S200 MCB, 1P, 50A Curve B, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS庫存編號 746-7551
  • 製造零件編號 2CDS251001R0505 S201-B50
个
HK$143.80
Better World
ABB System Pro M Compact S200 MCB, 3P, 2A Curve D, 440V AC, 6 kA Breaking Capacity
  • RS庫存編號 527-9554
  • 製造零件編號 2CDS253001R0021 S203-D2
个
HK$678.40
Littelfuse 7.5A Resettable Fuse, 32V dc
  • RS庫存編號 712-7525
  • 製造零件編號 AHEF750
个（每托盘 10 ）
HK$9.04
RS PRO 200mA F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 563-479
个（每托盘 10 ）
HK$3.04
Mersen 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 1P+N, 690V ac
  • RS庫存編號 182-0347
  • 製造零件編號 H215655
个
HK$152.10
Better World
Schneider Electric Busbar End Feed Unit, Canalis KS Series
  • RS庫存編號 211-0475
  • 製造零件編號 KSA630ABG4
个
HK$15,452.20
Eaton xEffect - FRCmM RCCB, 25A, 2 Pole, 30mA, Type A, 110V
  • RS庫存編號 127-422
  • 製造零件編號 180605 FRCMM-25/2/003-A-110
个
HK$1,214.00
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