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. 177-8053
Each (In a Box of 500)
£0.731(exc. VAT)
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  • Mfr. Part No. TLM800
Each
£341.84(exc. VAT)
  • RS Stock No. 458-8431
  • Mfr. Part No. KTK-1/8
Each (In a Pack of 5)
£12.032(exc. VAT)
Better World
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  • Mfr. Part No. GV4P80N6
Each
£715.61(exc. VAT)
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  • Mfr. Part No. 2CCS572001R1108
Each
£160.35(exc. VAT)
  • RS Stock No. 221-5610
  • Mfr. Part No. 3-128-217
Each
£16.16(exc. VAT)
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  • Mfr. Part No. 3VA9200-0WC00
Each (In a Pack of 10)
£5.212(exc. VAT)
  • RS Stock No. 122-344
  • Mfr. Part No. LV510306P
Each
£95.18(exc. VAT)
  • RS Stock No. 336-634
  • Mfr. Part No. SEA9BPN12E
Each
£356.01(exc. VAT)
  • RS Stock No. 495-0690
  • Mfr. Part No. LVR005NK
Each (In a Pack of 5)
£0.566(exc. VAT)
  • RS Stock No. 210-6999
  • Mfr. Part No. 3NW6120-1
Each (In a Pack of 10)
£4.383(exc. VAT)
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  • Mfr. Part No. FB243800Q1
Each
£125.33(exc. VAT)
Better World
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Each
£1,390.37(exc. VAT)
Better World
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  • Mfr. Part No. A9MEM1562
Each
£190.34(exc. VAT)
Better World
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Each
£254.54(exc. VAT)
  • RS Stock No. 801-7028
  • Mfr. Part No. 0914439
Each
£91.52(exc. VAT)
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  • Mfr. Part No. 1492-D2C080
Each
£86.03(exc. VAT)
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  • Mfr. Part No. 2CSR255080R1065 DS201 B6 AC30
Each
£141.62(exc. VAT)
  • RS Stock No. 237-5969
  • Mfr. Part No. 1SDA054469R1 T5L630 FF TMA 500A
Each
£2,450.07(exc. VAT)
  • RS Stock No. 140-762
  • Mfr. Part No. 2CCS802901R0539
Each
£339.60(exc. VAT)
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