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. 250-4190
  • Mfr. Part No. 1SDA054473R1
Each
£4,112.64(exc. VAT)
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  • Mfr. Part No. 110896 NZMH3-AE630-T
Each
£3,178.57(exc. VAT)
  • RS Stock No. 230-3569
  • Mfr. Part No. H214114
Each (In a Pack of 10)
£2.316(exc. VAT)
  • RS Stock No. 260-7772
  • Mfr. Part No. C16H32D160
Each
£1,210.00(exc. VAT)
  • RS Stock No. 231-9628
  • Mfr. Part No. 2CDL200003R5001 SZ-ESK3
1 Box of 1
£6.78(exc. VAT)
  • RS Stock No. 202-885
  • Mfr. Part No. 2CDS271337R0487
Each
£49.28(exc. VAT)
  • RS Stock No. 248-475
  • Mfr. Part No. 104554 NZM1-XAD160
Each
£116.50(exc. VAT)
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  • Mfr. Part No. P1RE1NC10A030
Each
£124.64(exc. VAT)
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  • Mfr. Part No. 242207 PLSM-C20-MW
Each
£21.02(exc. VAT)
Better World
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Each
£2,752.08(exc. VAT)
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Each
£319.80(exc. VAT)
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Each
£68.17(exc. VAT)
Better World
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Each
£9,374.25(exc. VAT)
Better World
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  • Mfr. Part No. 1SDA068564R1 XT4L 160 Ekip LSI 160A FF
Each
£1,493.82(exc. VAT)
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  • Mfr. Part No. 3VA5217-6ED31-1AA0
Each
£848.63(exc. VAT)
  • RS Stock No. 535-6156
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Each
£88.71(exc. VAT)
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  • Mfr. Part No. 239016 FAZ6-B16/1
Each
£20.67(exc. VAT)
  • RS Stock No. 703-8459P
  • Mfr. Part No. C22G16
Each (Supplied in a Box)
£3.353(exc. VAT)
  • RS Stock No. 203-1964
  • Mfr. Part No. 3NA6232
Each (In a Pack of 3)
£21.847(exc. VAT)
  • RS Stock No. 229-137
  • Mfr. Part No. KLM-1/4
1 Pack of 10
£504.37(exc. VAT)
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