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. 738-3153
  • Mfr. Part No. 0KLK002.T
Each
£25.88(exc. VAT)
  • RS Stock No. 703-4057
  • Mfr. Part No. 3-6ABWNA3-15
Each
£168.63(exc. VAT)
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  • Mfr. Part No. 236380 PXL-B10/3
Each
£47.12(exc. VAT)
  • RS Stock No. 169-9421
  • Mfr. Part No. S506-500-R
1 Bag of 1000
£172.23(exc. VAT)
  • RS Stock No. 703-8620
  • Mfr. Part No. 10NHG000B
Each
£4.01(exc. VAT)
  • RS Stock No. 304-2007
  • Mfr. Part No. Y300056
Each
£96.61(exc. VAT)
  • RS Stock No. 212-213
  • Mfr. Part No. A9F07113
Each
£37.58(exc. VAT)
  • RS Stock No. 414-774
  • Mfr. Part No. GSA50
Each (In a Pack of 5)
£29.448(exc. VAT)
Better World
  • RS Stock No. 209-5963
  • Mfr. Part No. 5SL4140-7
Each
£22.59(exc. VAT)
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  • Mfr. Part No. P300071
Each
£193.20(exc. VAT)
Better World
  • RS Stock No. 271-9710
  • Mfr. Part No. 3VA11124ED220AA0
Each
£290.12(exc. VAT)
  • RS Stock No. 830-4287P
  • Mfr. Part No. 8020.5077.G
Each (Supplied in a Box)
£0.613(exc. VAT)
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  • Mfr. Part No. V084313
Each (In a Pack of 10)
£3.701(exc. VAT)
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  • Mfr. Part No. 1492-SPM2D040
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£44.82(exc. VAT)
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  • Mfr. Part No. 110288 NZMH2-A50-BT
Each
£466.84(exc. VAT)
Better World
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  • Mfr. Part No. 1SDA067888R1 XT2H 160 Ekip M 52A FF
Each
£728.74(exc. VAT)
Better World
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  • Mfr. Part No. 2CDS251103R0974
Each
£45.60(exc. VAT)
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  • Mfr. Part No. 4 077 84
Each
£83.05(exc. VAT)
  • RS Stock No. 703-4022
  • Mfr. Part No. 12OEFMA63
Each
£272.24(exc. VAT)
  • RS Stock No. 602-114
  • Mfr. Part No. HMC390
Each
£508.44(exc. VAT)
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