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. 261-2843
  • Mfr. Part No. 140G-G3C3-C60
Each
£294.09(exc. VAT)
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  • Mfr. Part No. 5SY4202-7
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£65.76(exc. VAT)
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£326.04(exc. VAT)
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  • Mfr. Part No. JF 16-100 M10
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£4.31(exc. VAT)
Better World
  • RS Stock No. 271-9612
  • Mfr. Part No. 3VA10634ED360AA0
Each
£187.37(exc. VAT)
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  • Mfr. Part No. R330111
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£48.08(exc. VAT)
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£0.41(exc. VAT)
  • RS Stock No. 267-3420
  • Mfr. Part No. 70-010-04/6.3A
Each (In a Pack of 5)
£4.28(exc. VAT)
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£0.235(exc. VAT)
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  • Mfr. Part No. 0 133 12
1 Box of 10
£17.75(exc. VAT)
  • RS Stock No. 922-6986
  • Mfr. Part No. 278538 FAZ-B32/1
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£22.85(exc. VAT)
Better World
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£9.39(exc. VAT)
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  • Mfr. Part No. 3ND2244
Each (In a Pack of 3)
£29.46(exc. VAT)
  • RS Stock No. 180-073
1 Pack of 10
£18.97(exc. VAT)
  • RS Stock No. 232-168
  • Mfr. Part No. 120661 mRB6-6/3N/C/01-A
Each
£377.55(exc. VAT)
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  • Mfr. Part No. 235395 PFIM-40/2/01-MW
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£118.70(exc. VAT)
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Each
£10.82(exc. VAT)
  • RS Stock No. 630-889
  • Mfr. Part No. V090546Q
1 Box of 10
£5.59(exc. VAT)
  • RS Stock No. 272-0232
  • Mfr. Part No. 3VA9484-0QC00
Each (In a Pack of 4)
£30.15(exc. VAT)
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