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. 240-6395
  • Mfr. Part No. CCPBR1010AC
Each
£34.64(exc. VAT)
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Each
£525.68(exc. VAT)
  • RS Stock No. 413-901
  • Mfr. Part No. RS20H
Each
£17.91(exc. VAT)
  • RS Stock No. 697-225
  • Mfr. Part No. RND 170-00065
1 Pack of 25
£1.45(exc. VAT)
  • RS Stock No. 259-3990
  • Mfr. Part No. 1SDA072051R1
Each
£1,998.01(exc. VAT)
  • RS Stock No. 178-0992
  • Mfr. Part No. E1006576 / BNIT55V2
Each (In a Pack of 10)
£3.735(exc. VAT)
Better World
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  • Mfr. Part No. A9N61503
Each
£51.49(exc. VAT)
  • RS Stock No. 125-1501
  • Mfr. Part No. 1492-SPM1D160
Each
£20.90(exc. VAT)
  • RS Stock No. 182-1735
  • Mfr. Part No. SMD10
Each
£4.39(exc. VAT)
  • RS Stock No. 390-2448
1 Pack of 10
£17.38(exc. VAT)
  • RS Stock No. 895-1694
  • Mfr. Part No. 39615000000
Each (In a Pack of 10)
£0.783(exc. VAT)
Better World
  • RS Stock No. 772-1303
  • Mfr. Part No. 5SY4210-7
Each
£54.31(exc. VAT)
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  • Mfr. Part No. 1SDA067560R1 XT2S 160 TMA 160A FF
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£416.54(exc. VAT)
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  • Mfr. Part No. 00940957XXN
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£44.56(exc. VAT)
  • RS Stock No. 266-1312
  • Mfr. Part No. 406876
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£39.85(exc. VAT)
  • RS Stock No. 893-8537
Each
£71.03(exc. VAT)
  • RS Stock No. 250-4148
  • Mfr. Part No. 1SDA054419R1
Each
£3,396.42(exc. VAT)
  • RS Stock No. 181-8739
  • Mfr. Part No. ESD6
Each
£6.52(exc. VAT)
  • RS Stock No. 184-9061
  • Mfr. Part No. CPB40
Each
£3.28(exc. VAT)
  • RS Stock No. 189-5650
  • Mfr. Part No. 2CDD284101R0063
Each
£95.94(exc. VAT)
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