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.

50957 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 847-3245
  • Mfr. Part No. 102167 FAZ-C10/2-NA
Each
£83.52
  • RS Stock No. 339-319
  • Mfr. Part No. A9R24263
Each
£251.25
  • RS Stock No. 210-2131
  • Mfr. Part No. ESX10-TB-101-DC24V-1A-E
Each
£82.11
  • RS Stock No. 218-1804
  • Mfr. Part No. 3VA9153-0KB04
Each
£14.81
  • RS Stock No. 347-089
  • Mfr. Part No. C10N6TM063
Each
£946.53
Better World
  • RS Stock No. 776-3874
  • Mfr. Part No. A9L16299
Each
£618.48
Better World
  • RS Stock No. 790-8743
  • Mfr. Part No. A9F55463
Each
£240.54
Better World
  • RS Stock No. 178-7852
  • Mfr. Part No. LV426815
Each
£184.60
  • RS Stock No. 200-992
  • Mfr. Part No. 2CDS271061R0528
Each
£97.94
  • RS Stock No. 609-776
  • Mfr. Part No. 1499969
Each
£5.57
  • RS Stock No. 200-755
  • Mfr. Part No. 2CDS382001R0321
Each
£95.88
  • RS Stock No. 341-592
  • Mfr. Part No. BJF26040
Each
£717.24
  • RS Stock No. 144-4774
  • Mfr. Part No. NGN410
Each
£203.18
  • RS Stock No. 122-351
  • Mfr. Part No. LV510475P
Each
£120.43
  • RS Stock No. 354-301
  • Mfr. Part No. KSA400DLE41F
Each
£1,732.45
  • RS Stock No. 258-863
  • Mfr. Part No. 279014 FAZ-K20/3N
Each
£154.76
  • RS Stock No. 119-363
  • Mfr. Part No. 13153M
Each
£93.31
  • RS Stock No. 260-9488
  • Mfr. Part No. C10N32D100
Each
£762.69
  • RS Stock No. 144-4735
  • Mfr. Part No. NFT340
Each
£147.44
  • RS Stock No. 299-082
  • Mfr. Part No. 1SNF100031R0000
Each
£4.54
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