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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Better World
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  • Mfr. Part No. C10F4TM080D1
Each
£1,067.13(exc. VAT)
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Each
£4,241.45(exc. VAT)
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  • Mfr. Part No. C10H6TM016
Each
£584.35(exc. VAT)
  • RS Stock No. 266-3071
  • Mfr. Part No. 0 103 06
1 Box of 10
£24.20(exc. VAT)
  • RS Stock No. 848-3844
  • Mfr. Part No. GMT-1-2A
Each
£6.42(exc. VAT)
  • RS Stock No. 746-8181
  • Mfr. Part No. 2CDS273001R0251 S203M-D25
Each
£87.60(exc. VAT)
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Each
£187.28(exc. VAT)
  • RS Stock No. 213-2455
  • Mfr. Part No. LZS:PT17021
Each (In a Pack of 10)
£0.394(exc. VAT)
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  • Mfr. Part No. 3NW6001-4
Each (In a Pack of 20)
£9.227(exc. VAT)
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  • Mfr. Part No. 3VA5340-5EF31-0AA0
Each
£1,197.18(exc. VAT)
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  • Mfr. Part No. TPN10
Each
£393.28(exc. VAT)
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  • Mfr. Part No. 125MJ30-7
Each
£40.63(exc. VAT)
  • RS Stock No. 221-5662
  • Mfr. Part No. 8040.2002.01
1 Box of 20
£8.34(exc. VAT)
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  • Mfr. Part No. C25W46E250
Each
£4,711.41(exc. VAT)
  • RS Stock No. 339-381
  • Mfr. Part No. SED25304
Each
£163.75(exc. VAT)
Better World
  • RS Stock No. 212-8861
  • Mfr. Part No. 5SL6105-7
Each
£18.28(exc. VAT)
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  • Mfr. Part No. 2CSF202201R2900
Each
£256.29(exc. VAT)
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  • Mfr. Part No. 4 013 91
Each
£24.56(exc. VAT)
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  • Mfr. Part No. 177541 FAZ6-B1,5/2
Each
£59.29(exc. VAT)
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  • Mfr. Part No. C11E3TM040L
Each
£298.95(exc. VAT)
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