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+
Littelfuse 1A F Glass Cartridge Fuse, 5 x 20mm
  • RS庫存編號 541-4375
  • 製造零件編號 0217001.MXP
个（每托盘 10 ）
HK$2.94
Eaton 20A T Melamine Cartridge Fuse, 10 x 38mm
  • RS庫存編號 854-8901
  • 製造零件編號 FNQ-R-20
个
HK$561.00
RS PRO 16A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS庫存編號 209-9311
个（每托盘 10 ）
HK$10.21
Mersen 6A FF Cartridge Fuse, 10 x 38mm
  • RS庫存編號 136-0474
  • 製造零件編號 Y1014574 / FR10GR69V6
个 (以毎盒：10)
HK$82.10
Littelfuse 50A Grey, White CF Car Fuse, 58V dc
  • RS庫存編號 337-7915
  • 製造零件編號 155.0892.5501
个
HK$85.90
Better World
Schneider Electric Multi 9 C60SP MCB, 3P, 63A Curve C, 440V AC, 10 kA Breaking Capacity
  • RS庫存編號 219-9135
  • 製造零件編號 M9F22363
个
HK$2,757.30
Phoenix Contact Thermal Circuit Breaker - CB TM1 Single Pole 50V dc Voltage Rating, 2A Current Rating
  • RS庫存編號 217-6359
  • 製造零件編號 2800837
个
HK$361.40
Schurter TA36 Rocker Circuit Breaker - TA36 Single Pole 32 V dc, 277 V ac Voltage Rating, 5A Current Rating
  • RS庫存編號 221-5601
  • 製造零件編號 3-128-213
个
HK$89.80
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 0.5A Current Rating
  • RS庫存編號 458-8661
  • 製造零件編號 1180-01-0.5A
个
HK$134.60
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 6A Current Rating
  • RS庫存編號 458-8728
  • 製造零件編號 1180-01-6A
个
HK$205.30
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 0.25A Current Rating
  • RS庫存編號 458-8655
  • 製造零件編號 1180-01-0.25A
个
HK$195.40
ETA Thermal Circuit Breaker - 2-5700 Single Pole 250V Voltage Rating Panel Mount, 25A Current Rating
  • RS庫存編號 406-9491
  • 製造零件編號 2-5700-IG1-P10-DD-000040-25A
个
HK$184.90
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 12A Current Rating
  • RS庫存編號 782-6593
  • 製造零件編號 W28-XQ1A-12
个
HK$42.90
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 25A Current Rating
  • RS庫存編號 782-7990
  • 製造零件編號 W58-XB1A4A-25
个
HK$70.90
TE Connectivity Thermal Circuit Breaker - W57 Single Pole 250V ac Voltage Rating, 10A Current Rating
  • RS庫存編號 782-0867
  • 製造零件編號 W57-XB7A4A10-10
个
HK$23.00
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 250V ac Voltage Rating, 30A Current Rating
  • RS庫存編號 782-8016
  • 製造零件編號 W54-XB1A4A10-30
个
HK$31.70
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 1A Current Rating
  • RS庫存編號 458-8677
  • 製造零件編號 1180-01-1A
个
HK$194.80
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 4A Current Rating
  • RS庫存編號 458-8712
  • 製造零件編號 1180-01-4A
个
HK$154.20
ETA Thermal Circuit Breaker - 2 5700 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS庫存編號 729-2758
  • 製造零件編號 2-5700-IG2-P10-DD-000040-10A
个
HK$158.00
Limitor Thermal Fuse +97°C 2 A, 250V ac
  • RS庫存編號 116-114
  • 製造零件編號 SM 092 A0 2A
个（每托盘 5 ）
HK$8.72
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