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.

50915 Products showing for Fuses & Circuit Breakers

266 of 999+
  • RS Stock No. 245-9229
  • Mfr. Part No. SF-1206F600M-2
Each (On a Tape of 10)
£0.344(exc. VAT)
Better World
  • RS Stock No. 221-1258
  • Mfr. Part No. LV432570
Each
£34.72(exc. VAT)
  • RS Stock No. 848-3797
  • Mfr. Part No. GDA-500MA
Each
£5.38(exc. VAT)
  • RS Stock No. 174-0330
  • Mfr. Part No. 2920L700SLPR
1 Reel of 2000
£2,093.42(exc. VAT)
  • RS Stock No. 260-8263
  • Mfr. Part No. C63W42D630
Each
£5,514.46(exc. VAT)
  • RS Stock No. 174-0869
  • Mfr. Part No. RF1347-000
Each (In a Pack of 20)
£0.232(exc. VAT)
Better World
  • RS Stock No. 203-2201
  • Mfr. Part No. 5SY5206-6
Each
£100.33(exc. VAT)
  • RS Stock No. 200-726
  • Mfr. Part No. 2CDS381001R0064
Each
£29.66(exc. VAT)
  • RS Stock No. 101-788
Each
£53.54(exc. VAT)
  • RS Stock No. 284-6038
  • Mfr. Part No. 4410.0039
Each
£18.80(exc. VAT)
  • RS Stock No. 125-1422
  • Mfr. Part No. 1492-SPM1B100
Each
£16.59(exc. VAT)
  • RS Stock No. 231-9707
  • Mfr. Part No. 2CDS271065R0457 S201MT-K15
1 Box of 1
£102.87(exc. VAT)
  • RS Stock No. 188-4644
Each
£7.68(exc. VAT)
Better World
  • RS Stock No. 221-1291
  • Mfr. Part No. LV438338
Each
£91.28(exc. VAT)
  • RS Stock No. 231-253
  • Mfr. Part No. 111634 PKPM2-10/2/B/03-A
Each
£227.04(exc. VAT)
  • RS Stock No. 849-5778
  • Mfr. Part No. HRK-R
Each
£3.55(exc. VAT)
  • RS Stock No. 219-6096
  • Mfr. Part No. 0154001.DR
Each (In a Pack of 10)
£2.371(exc. VAT)
  • RS Stock No. 849-6046
  • Mfr. Part No. GDB-50MA
Each (In a Pack of 5)
£9.016(exc. VAT)
  • RS Stock No. 144-1842
  • Mfr. Part No. 8020.5022.G
Each (In a Bag of 10)
£0.642(exc. VAT)
Better World
  • RS Stock No. 489-6704
  • Mfr. Part No. 5SY6110-6
Each
£15.87(exc. VAT)
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