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.

50914 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 247-2778
  • Mfr. Part No. H083957
1 Box of 10
£205.57(exc. VAT)
  • RS Stock No. 227-0753
  • Mfr. Part No. 267463 PFGM-63/4/03-A
Each
£104.70(exc. VAT)
  • RS Stock No. 703-8695P
  • Mfr. Part No. 80NHG01B
Each (Supplied in a Box)
£8.01(exc. VAT)
  • RS Stock No. 237-5082
  • Mfr. Part No. 2CSR253101R1165
Each
£274.91(exc. VAT)
  • RS Stock No. 341-384
  • Mfr. Part No. C063N45EFM
Each
£8,233.35(exc. VAT)
  • RS Stock No. 144-4713
  • Mfr. Part No. NFN216
Each
£71.31(exc. VAT)
  • RS Stock No. 216-5373
Each
£43.11(exc. VAT)
  • RS Stock No. 177-030
  • Mfr. Part No. 2CCS573001R0254 S403M-C25
Each
£107.53(exc. VAT)
Better World
  • RS Stock No. 818-5746
  • Mfr. Part No. LA4FVP
Each
£101.77(exc. VAT)
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  • Mfr. Part No. A9F93106
Each
£36.11(exc. VAT)
Better World
  • RS Stock No. 151-1198
  • Mfr. Part No. 5SU1354-7KK10
Each
£135.55(exc. VAT)
  • RS Stock No. 169-9544
  • Mfr. Part No. SS-5F-4A-BK
Each (In a Bag of 200)
£0.933(exc. VAT)
Better World
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  • Mfr. Part No. M9D11616
Each
£194.29(exc. VAT)
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  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-12A
Each
£22.97(exc. VAT)
  • RS Stock No. 245-9143
  • Mfr. Part No. MF-LSMF185/24X-2
Each (On a Reel of 3000)
£0.33(exc. VAT)
  • RS Stock No. 174-0392
  • Mfr. Part No. RF1184-000
1 Reel of 7500
£1,546.93(exc. VAT)
  • RS Stock No. 188-4634
Each
£25.51(exc. VAT)
  • RS Stock No. 227-0748
  • Mfr. Part No. 264307 PFGM-63/4/01
Each
£204.28(exc. VAT)
  • RS Stock No. 226-1027
  • Mfr. Part No. 157.5701.6351
Each
£7.33(exc. VAT)
Better World
  • RS Stock No. 124-3164
  • Mfr. Part No. 5SY4203-7
Each
£52.61(exc. VAT)
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