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

47266 產品顯示為 Fuses & Circuit Breakers

3 of 999+
In Stock
  • RS Stock No. 825-5867
  • Mfr. Part No. P1MB3PD02
Each
HK$734.10
In Stock
  • RS Stock No. 521-2466
Each (In a Pack of 5)
HK$32.874
In Stock
Better World
  • RS Stock No. 211-2405
  • Mfr. Part No. M9F23332
Each
HK$560.50
Limited stock
  • RS Stock No. 797-6055
  • Mfr. Part No. SF 129 R
Each (In a Pack of 10)
HK$7.88
In Stock
  • RS Stock No. 174-0667
  • Mfr. Part No. 01550120ZXU
Each (In a Pack of 5)
HK$7.06
Currently unavailable
Better World
  • RS Stock No. 211-2679
  • Mfr. Part No. TRV00917
Each
HK$4,780.30
In Stock
  • RS Stock No. 738-2905
  • Mfr. Part No. 0154.125DR
Each (In a Pack of 10)
HK$15.28
In Stock
  • RS Stock No. 390-2448
Each (In a Pack of 10)
HK$13.08
In Stock
  • RS Stock No. 414-752
  • Mfr. Part No. GSA25
Each (In a Pack of 5)
HK$294.14
In Stock
  • RS Stock No. 867-4365
  • Mfr. Part No. 3101.0215
Each (In a Pack of 10)
HK$30.92
In Stock
  • RS Stock No. 284-5136
  • Mfr. Part No. 0034.6017
Each (In a Pack of 10)
HK$3.63
In Stock
  • RS Stock No. 225-5865
  • Mfr. Part No. 1SDA060399R1 MOE 380VAC T6
Each
HK$11,816.10
In Stock
Better World
  • RS Stock No. 850-8603
  • Mfr. Part No. EZ9F16116
Each
HK$105.10
In Stock
  • RS Stock No. 738-2826P
  • Mfr. Part No. 0326010.MXP
Each (Supplied on a Reel)
HK$12.15
In Stock
  • RS Stock No. 922-8642
  • Mfr. Part No. 235424 PFIM-25/2/003-A-MW
Each
HK$1,141.60
In Stock
  • RS Stock No. 408-404
  • Mfr. Part No. FX0280
Each (In a Pack of 5)
HK$38.80
Temporarily out of stock
  • RS Stock No. 418-726
  • Mfr. Part No. SSD10
Each (In a Pack of 5)
HK$24.72
Being discontinued
  • RS Stock No. 563-722
Each (In a Pack of 10)
HK$3.46
In Stock
  • RS Stock No. 253-7604
  • Mfr. Part No. 2908366
Each (In a Pack of 2)
HK$27.95
Temporarily out of stock
Better World
  • RS Stock No. 874-4231
  • Mfr. Part No. 3VA1120-3EF36-0AA0
Each
HK$2,443.50
Results per page