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.

50915 Products showing for Fuses & Circuit Breakers

523 of 999+
  • RS Stock No. 261-2880
  • Mfr. Part No. 140G-G-UVA
Each
£132.85(exc. VAT)
  • RS Stock No. 119-360
  • Mfr. Part No. 13172M
Each
£178.24(exc. VAT)
  • RS Stock No. 174-0439
  • Mfr. Part No. RF2567-000
1 Box of 10000
£2,060.18(exc. VAT)
  • RS Stock No. 230-3610
  • Mfr. Part No. M217177
Each (In a Pack of 10)
£2.316(exc. VAT)
  • RS Stock No. 288-7078
  • Mfr. Part No. A9F90216
Each
£78.33(exc. VAT)
  • RS Stock No. 174-0800
  • Mfr. Part No. RF2640-000
Each (In a Pack of 10)
£0.265(exc. VAT)
  • RS Stock No. 269-9762
  • Mfr. Part No. 5SV3346-3KK60
Each
£734.40(exc. VAT)
Better World
  • RS Stock No. 219-8304
  • Mfr. Part No. BDF36015
Each
£417.72(exc. VAT)
  • RS Stock No. 848-3822
  • Mfr. Part No. GDB-6-3A
Each
£3.74(exc. VAT)
  • RS Stock No. 174-0660
  • Mfr. Part No. 0448005.MR
Each (In a Pack of 5)
£0.91(exc. VAT)
  • RS Stock No. 299-726
  • Mfr. Part No. 5SJ4114-7HG40
Each
£41.56(exc. VAT)
  • RS Stock No. 260-7487
  • Mfr. Part No. C10W35E040
Each
£2,238.29(exc. VAT)
  • RS Stock No. 630-828
  • Mfr. Part No. M090516Q
1 Box of 10
£4.80(exc. VAT)
  • RS Stock No. 180-090
1 Pack of 10
£257.29(exc. VAT)
  • RS Stock No. 231-385
  • Mfr. Part No. 113016 NZMB2-4-AF250-BT-NA
Each
£1,879.25(exc. VAT)
  • RS Stock No. 764-9551
Each (In a Pack of 10)
£0.575(exc. VAT)
Better World
  • RS Stock No. 191-6111
  • Mfr. Part No. A9P24625
Each
£96.05(exc. VAT)
  • RS Stock No. 608-831
  • Mfr. Part No. 3NE4332-3
1 Pack of 3
£452.10(exc. VAT)
  • RS Stock No. 277-0789
  • Mfr. Part No. 3WA9111-0AN31
Each
£214.79(exc. VAT)
  • RS Stock No. 868-9358
  • Mfr. Part No. 4435.0039
Each
£16.19(exc. VAT)
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