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

17 of 999+
  • RS Stock No. 230-1093
  • Mfr. Part No. 264694 PLG6-C13/1N
Each
£17.19(exc. VAT)
  • RS Stock No. 196-3627
  • Mfr. Part No. 5SY62047
Each
£47.78(exc. VAT)
  • RS Stock No. 418-631
  • Mfr. Part No. RS20LOCK
Each (In a Pack of 3)
£12.00(exc. VAT)
  • RS Stock No. 184-9026
  • Mfr. Part No. CPB1006C3
Each
£14.68(exc. VAT)
  • RS Stock No. 225-6146
  • Mfr. Part No. 2CSR256040R1324 DS203NC C32 AC30
Each
£153.81(exc. VAT)
  • RS Stock No. 174-0663
  • Mfr. Part No. 0298060.ZXB
1 Pack of 1
£7.67(exc. VAT)
Better World
  • RS Stock No. 238-3409
  • Mfr. Part No. A9P71602
Each
£34.15(exc. VAT)
  • RS Stock No. 703-8651
  • Mfr. Part No. 100NHG000B
Each
£7.22(exc. VAT)
  • RS Stock No. 139-962
  • Mfr. Part No. DEO160
Each
£27.83(exc. VAT)
  • RS Stock No. 415-137
  • Mfr. Part No. TIA10
1 Pack of 5
£42.07(exc. VAT)
  • RS Stock No. 420-050
  • Mfr. Part No. FX0385
1 Pack of 5
£49.40(exc. VAT)
  • RS Stock No. 284-6487
Each (In a Pack of 10)
£1.959(exc. VAT)
  • RS Stock No. 911-3394
Each (In a Pack of 10)
£0.357(exc. VAT)
  • RS Stock No. 791-2792
  • Mfr. Part No. A9A26976
Each
£11.46(exc. VAT)
  • RS Stock No. 426-3132
1 Pack of 5
£30.32(exc. VAT)
  • RS Stock No. 247-4059
1 Pack of 10
£10.98(exc. VAT)
  • RS Stock No. 911-3427
Each (In a Pack of 10)
£0.357(exc. VAT)
  • RS Stock No. 111-7813
  • Mfr. Part No. SWTC-464-3535
Each (In a Pack of 10)
£1.624(exc. VAT)
  • RS Stock No. 563-699
Each (In a Pack of 10)
£0.397(exc. VAT)
  • RS Stock No. 849-6418
  • Mfr. Part No. TPN08
Each
£129.97(exc. VAT)
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