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. 259-3471
  • Mfr. Part No. 1SDA071426R1
Each
£5,285.52(exc. VAT)
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  • Mfr. Part No. S084311
Each (In a Pack of 10)
£3.482(exc. VAT)
Better World
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  • Mfr. Part No. LV426551
Each
£339.56(exc. VAT)
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  • Mfr. Part No. 811-414
Each
£21.32(exc. VAT)
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  • Mfr. Part No. 83230127 / STPT23-20K275V-4PG-LFM
Each
£157.46(exc. VAT)
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  • Mfr. Part No. 2CDS253001R0824 S203-C100 6kA 100A
1 Box of 1
£162.14(exc. VAT)
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  • Mfr. Part No. 1SDA067073R1 XT2N 160 Ekip LSIG 25A FF
Each
£675.24(exc. VAT)
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  • Mfr. Part No. C25H3TM125
Each
£1,412.85(exc. VAT)
Better World
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  • Mfr. Part No. KSB160SV4
Each
£538.53(exc. VAT)
  • RS Stock No. 228-896
  • Mfr. Part No. 6D27 FUSE-D2 6A T GL/GG 500VAC E27
1 Pack of 5
£5.61(exc. VAT)
Better World
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  • Mfr. Part No. LV429245
Each
£85.53(exc. VAT)
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Each
£277.02(exc. VAT)
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  • Mfr. Part No. NHJL36090
Each
£2,031.07(exc. VAT)
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Each (In a Pack of 10)
£0.784(exc. VAT)
  • RS Stock No. 205-223
  • Mfr. Part No. C25H47E160
Each
£3,556.18(exc. VAT)
  • RS Stock No. 140-671
  • Mfr. Part No. 2CCS883001R0405
Each
£138.11(exc. VAT)
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Each
£871.37(exc. VAT)
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  • Mfr. Part No. 5TT4402-2
Each
£73.78(exc. VAT)
Better World
  • RS Stock No. 259-9931
  • Mfr. Part No. 1SDA070793R1
Each
£4,208.59(exc. VAT)
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  • Mfr. Part No. SE10D340
Each
£111.36(exc. VAT)
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