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

240 of 999+
  • RS Stock No. 254-4151
  • Mfr. Part No. PF-FB2-300
Each
£126.64(exc. VAT)
  • RS Stock No. 848-4166
  • Mfr. Part No. LP-CC-6
Each
£54.06(exc. VAT)
Better World
  • RS Stock No. 209-6043
  • Mfr. Part No. 5SY7225-7
Each
£64.41(exc. VAT)
  • RS Stock No. 339-357
  • Mfr. Part No. SEA9BPN12514S8
Each
£4,538.47(exc. VAT)
  • RS Stock No. 182-1371
  • Mfr. Part No. 170H1013
Each (In a Box of 3)
£27.253(exc. VAT)
  • RS Stock No. 692-5053
  • Mfr. Part No. SF-1206S200-2
Each (In a Pack of 10)
£0.321(exc. VAT)
  • RS Stock No. 182-1796
  • Mfr. Part No. CHCC3DU
Each
£22.05(exc. VAT)
  • RS Stock No. 210-4752
  • Mfr. Part No. EUR140.30/2A
Each
£41.50(exc. VAT)
  • RS Stock No. 181-8601
  • Mfr. Part No. 400PJ30-7
1 Box of 5
£302.88(exc. VAT)
Better World
  • RS Stock No. 231-9660
  • Mfr. Part No. 2CDS251001R0105 S201 B 10A - 10 KA
1 Box of 1
£16.38(exc. VAT)
  • RS Stock No. 241-164
  • Mfr. Part No. 101285 PLI-D13/1N
Each
£55.78(exc. VAT)
  • RS Stock No. 186-3456
  • Mfr. Part No. 2CSF202002R1400
Each
£45.85(exc. VAT)
  • RS Stock No. 245-9136
  • Mfr. Part No. MF-LSMF125X-2
Each (On a Reel of 3000)
£0.22(exc. VAT)
  • RS Stock No. 262-610
  • Mfr. Part No. CHCC1DIU
1 Pack of 12
£105.83(exc. VAT)
  • RS Stock No. 787-4186P
  • Mfr. Part No. 1206L012WR
Each (Supplied on a Reel)
£0.372(exc. VAT)
  • RS Stock No. 100-564
  • Mfr. Part No. DF1100
Each
£30.44(exc. VAT)
  • RS Stock No. 287-6356
  • Mfr. Part No. 2CDS251103R0024
Each (In a Pack of 5)
£36.886(exc. VAT)
  • RS Stock No. 655-156
  • Mfr. Part No. A9R41440
Each
£219.98(exc. VAT)
  • RS Stock No. 458-8677
  • Mfr. Part No. 1180-01-1A
Each
£11.29(exc. VAT)
Better World
  • RS Stock No. 734-9324
  • Mfr. Part No. A9F94432
Each
£392.89(exc. VAT)
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