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

1 的 999+
Littelfuse 1.6A T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 541-2947
  • 製造零件編號 021301.6MXP
个（每托盘 10 ）
HK$5.00
Mersen 1A FF Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 188-6732
  • 製造零件編號 K084304
个（每托盘 10 ）
HK$39.671
Eaton 10A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 412-324
  • 製造零件編號 TDC10-10A
个（每托盘 10 ）
HK$12.62
SIBA 125mA T Ceramic Cartridge Fuse, 5 x 20mm
  • RS庫存編號 783-3273
  • 製造零件編號 70-007-65/0.125A
个（每托盘 10 ）
HK$2.03
RS PRO 160mA T Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 563-586
个（每托盘 10 ）
HK$3.04
Mersen 100A German Standard Fuse, NH00, 690V ac, 77mm
  • RS庫存編號 287-0889
  • 製造零件編號 E330238
个
HK$606.20
Schurter 500mA T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 269-3865
  • 製造零件編號 8020.5008
个
HK$5.50
Schurter SMD Non Resettable Fuse 1A, 125V ac/dc
  • RS庫存編號 782-3737
  • 製造零件編號 7010.9810.63
个（每托盘 10 ）
HK$16.15
Schurter SMD Non Resettable Fuse 63mA, 125V ac/dc
  • RS庫存編號 173-9900
  • 製造零件編號 3404.0003.11
个 (以毎袋：100)
HK$6.234
Europa RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, EUBLMC Range
  • RS庫存編號 210-4734
  • 製造零件編號 EUBLMC40B30A
个
HK$637.20
Better World
Siemens Sentron 5SY4 MCB, 1P, 3A Curve C, 230V AC, 10 kA Breaking Capacity
  • RS庫存編號 622-0020
  • 製造零件編號 5SY4103-7
个
HK$409.80
RS PRO 12.5A F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 209-9282
个（每托盘 10 ）
HK$8.15
Eaton 100A British Standard Fuse, A4, 415V ac, 94mm
  • RS庫存編號 156-8658
  • 製造零件編號 CEO100M160
个
HK$304.70
Better World
Schneider Electric RCBO, 40A Current Rating, 1P+N Poles, 100mA Trip Sensitivity, Type A, Acti 9 Range
  • RS庫存編號 790-9361
  • 製造零件編號 A9D12840
个
HK$1,670.21
Siemens RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, SENTRON Range
  • RS庫存編號 211-9584
  • 製造零件編號 5SM2643-6
个
HK$721.00
Lovato RCBO, 40A Current Rating, 1P + N Poles, 300mA Trip Sensitivity, Type A, P1RE1NC Range
  • RS庫存編號 276-5688
  • 製造零件編號 P1RE1NC40A300
个
HK$1,384.35
Lovato RCBO, 40A Current Rating, 1P + N Poles, 30mA Trip Sensitivity, Type A, P1RE1NC Range
  • RS庫存編號 276-5687
  • 製造零件編號 P1RE1NC40A030
个
HK$1,455.85
Siemens RCBO, 40A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type A, SENTRON Range
  • RS庫存編號 211-9578
  • 製造零件編號 5SM2623-6
个
HK$989.50
Schurter 500mA F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 269-3871
  • 製造零件編號 8020.5065
个
HK$8.60
Better World
Schneider Electric Acti 9 C60-PV MCB, 2P, 25A Curve B, 800V DC, 3 kA Breaking Capacity
  • RS庫存編號 776-3626
  • 製造零件編號 A9N61660
个
HK$2,939.00
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