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. 218-8535
  • Mfr. Part No. 1492-D1C080
Each (In a Pack of 2)
£43.82(exc. VAT)
  • RS Stock No. 203-721
  • Mfr. Part No. 2CDS253001R0518
Each
£134.99(exc. VAT)
  • RS Stock No. 914-4395
  • Mfr. Part No. ATMR2
Each
£18.98(exc. VAT)
  • RS Stock No. 282-6211
  • Mfr. Part No. PV-200A-1XL-15
Each
£306.71(exc. VAT)
  • RS Stock No. 893-0615
  • Mfr. Part No. 696314001002
Each (In a Pack of 5)
£2.15(exc. VAT)
  • RS Stock No. 339-384
  • Mfr. Part No. SEE106C03
Each
£137.42(exc. VAT)
  • RS Stock No. 161-1830
  • Mfr. Part No. 9005805.80
Each
£4.71(exc. VAT)
  • RS Stock No. 284-5423
  • Mfr. Part No. 0034.6623
Each (In a Pack of 10)
£0.371(exc. VAT)
Better World
  • RS Stock No. 211-3778
  • Mfr. Part No. 3VA2116-6KP42-0AA0
Each
£1,330.79(exc. VAT)
  • RS Stock No. 228-767
  • Mfr. Part No. C22G63 CYLINDRICAL FUSE 22 x 58 63A GG 690V AC
1 Pack of 10
£27.01(exc. VAT)
  • RS Stock No. 258-703
  • Mfr. Part No. 289017 GSU2
Each
£173.47(exc. VAT)
  • RS Stock No. 738-2902
  • Mfr. Part No. 04513.15MRL
Each (In a Pack of 10)
£0.878(exc. VAT)
  • RS Stock No. 186-3457
  • Mfr. Part No. 2CSF202002R1630
Each
£69.59(exc. VAT)
  • RS Stock No. 237-5106
  • Mfr. Part No. 2CSR254001R1634
Each
£294.65(exc. VAT)
  • RS Stock No. 253-225
  • Mfr. Part No. 193546 PXK-C16/1N/03-F
Each
£176.87(exc. VAT)
  • RS Stock No. 269-3853
  • Mfr. Part No. 7010.3410
Each
£0.57(exc. VAT)
  • RS Stock No. 182-1741
  • Mfr. Part No. RS20F
Each
£32.62(exc. VAT)
  • RS Stock No. 187-5173
  • Mfr. Part No. 5ST3634
Each
£5.67(exc. VAT)
  • RS Stock No. 201-346
  • Mfr. Part No. 2CDS254001R0805
Each
£265.30(exc. VAT)
  • RS Stock No. 825-5680
  • Mfr. Part No. P1MB2PB20
Each
£44.14(exc. VAT)
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