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

47265 Products showing for Fuses & Circuit Breakers

143 of 999+
In Stock
Better World
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  • Mfr. Part No. A9XPP606
Each (In a Pack of 18)
HK$282.484
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  • RS Stock No. 654-840
  • Mfr. Part No. A9DC4610
Each
HK$3,998.40
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  • RS Stock No. 263-143
  • Mfr. Part No. C55
1 Pack of 10
HK$247.60
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  • RS Stock No. 209-6416
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Each (In a Pack of 10)
HK$23.888
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  • RS Stock No. 261-357
  • Mfr. Part No. PXS24BB00012 PXS24-BB/80A/12TE
Each
HK$59.30
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Better World
  • RS Stock No. 746-7652
  • Mfr. Part No. 2CDS251001R0044 S201-C4
Each
HK$166.20
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  • RS Stock No. 269-3871
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Each
HK$8.60
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  • RS Stock No. 279-4126
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Each
HK$543.10
In Stock
Better World
  • RS Stock No. 220-1344
  • Mfr. Part No. M9A26960
Each
HK$1,484.10
Temporarily out of stock
Better World
  • RS Stock No. 209-7014
  • Mfr. Part No. 3VA1180-5EE46-0AA0
Each
HK$5,180.10
Temporarily out of stock
Better World
  • RS Stock No. 211-3727
  • Mfr. Part No. 3VA1125-4GF46-0AA0
Each
HK$4,851.90
Temporarily out of stock
Better World
  • RS Stock No. 209-7072
  • Mfr. Part No. 3VA2163-6HN46-0AA0
Each
HK$10,218.00
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  • RS Stock No. 655-016
  • Mfr. Part No. KSA630DLC401
Each
HK$20,127.40
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  • RS Stock No. 729-2833
  • Mfr. Part No. 3600-P10-Si-1A
Each
HK$679.40
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  • RS Stock No. 261-970
  • Mfr. Part No. SMD10
1 Pack of 20
HK$2,388.00
Temporarily out of stock
  • RS Stock No. 245-094
  • Mfr. Part No. A9R24291
Each
HK$3,926.80
Temporarily out of stock
  • RS Stock No. 262-040
  • Mfr. Part No. EBH3O3TS8
Each
HK$2,925.50
Temporarily out of stock
  • RS Stock No. 182-1787
  • Mfr. Part No. SD2-D-PV
Each
HK$1,816.00
In Stock
  • RS Stock No. 212-088
  • Mfr. Part No. R9F28332
Each
HK$1,616.56
Temporarily out of stock
  • RS Stock No. 141-240
  • Mfr. Part No. 2CCS862001R0487
Each
HK$4,044.84
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