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.

50907 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 201-390
  • Mfr. Part No. 2CDS243701R0064
Each
£59.48(exc. VAT)
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£1,447.28(exc. VAT)
  • RS Stock No. 729-2830
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£64.86(exc. VAT)
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  • Mfr. Part No. 0154.500DRT
Each (Supplied on a Reel)
£3.342(exc. VAT)
  • RS Stock No. 122-5260
  • Mfr. Part No. 57010018
Each (In a Pack of 4)
£20.838(exc. VAT)
  • RS Stock No. 304-2209
  • Mfr. Part No. Y300079
Each
£184.76(exc. VAT)
  • RS Stock No. 228-830
  • Mfr. Part No. 6H07-660
1 Pack of 20
£641.40(exc. VAT)
  • RS Stock No. 490-175
  • Mfr. Part No. 236291 PXL-C25/2
Each
£54.73(exc. VAT)
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  • Mfr. Part No. 1SDA074641R1 XT1N 125 TMF 50-500 3p F F
Each
£303.99(exc. VAT)
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  • Mfr. Part No. XS80
Each (In a Box of 10)
£51.241(exc. VAT)
  • RS Stock No. 139-928
  • Mfr. Part No. NITD32M63
Each (In a Pack of 5)
£7.932(exc. VAT)
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  • Mfr. Part No. 177534 FAZ6-D20/1N
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£26.37(exc. VAT)
  • RS Stock No. 221-3648
1 Bag of 5
£27.01(exc. VAT)
  • RS Stock No. 336-641
  • Mfr. Part No. C104MG100
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£229.26(exc. VAT)
  • RS Stock No. 252-5310
  • Mfr. Part No. 170M7909
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£51.32(exc. VAT)
Better World
  • RS Stock No. 269-9761
  • Mfr. Part No. 5SV3344-6KK60
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£482.13(exc. VAT)
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  • Mfr. Part No. 236530 PXL-C32/3N
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£161.56(exc. VAT)
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  • Mfr. Part No. 7-1393246-5
Each (In a Tray of 25)
£31.574(exc. VAT)
  • RS Stock No. 541-3603
  • Mfr. Part No. 0466002.NR
Each (In a Pack of 10)
£0.573(exc. VAT)
  • RS Stock No. 223-7761
  • Mfr. Part No. 7P.22.8.275.1020
Each
£74.91(exc. VAT)
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