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

10 的 999+
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
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(不含稅)
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV3 690V Voltage Rating, 32A Current Rating
  • RS庫存編號 830-3060
  • 製造零件編號 GV3P32
个
HK$1,466.60(不含稅)
Limitor Thermal Fuse +94°C 15 A, 250V ac
  • RS庫存編號 797-6049
  • 製造零件編號 SF 090 R
个（每托盘 10 ）
HK$6.69(不含稅)
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating Panel Mount, 10A Current
  • RS庫存編號 167-5677
  • 製造零件編號 W28-XQ1A-10
个
HK$35.80(不含稅)
ETA Thermal Circuit Breaker - 1170 Single Pole 28V dc Voltage Rating, 10A Current Rating
  • RS庫存編號 854-453
  • 製造零件編號 1170-21-10A
个
HK$127.00(不含稅)
ETA Thermal Circuit Breaker - 1410-F Single Pole 240V Voltage Rating Panel Mount, 5A Current Rating
  • RS庫存編號 409-839
  • 製造零件編號 1410-F110-P1F1-W14QB4-5A
个
HK$235.00(不含稅)
TE Connectivity Thermal Circuit Breaker - W28 SP Pole 32 V dc, 250 V ac Voltage Rating Panel Mount, 8A Current Rating
  • RS庫存編號 164-8779
  • 製造零件編號 W28-XQ1A-8
个 (以毎袋：100)
HK$32.477(不含稅)
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating Panel Mount, 10A Current
  • RS庫存編號 170-9405
  • 製造零件編號 W28-XQ1A-10
个 (以毎袋：100)
HK$27.778(不含稅)
Littelfuse PC Board Non Resettable Fuse, Radial 5A, 250V ac
  • RS庫存編號 377-2203
  • 製造零件編號 3821500041
个（每托盘 10 ）
HK$11.64(不含稅)
Mersen 2A Slotted Tag Fuse, A1, 250 V dc, 550V ac, 44.5mm
  • RS庫存編號 178-0992
  • 製造零件編號 E1006576 / BNIT55V2
个（每托盘 10 ）
HK$19.805(不含稅)
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