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.

51028 Products showing for Fuses & Circuit Breakers

5 of 999+
  • RS Stock No. 703-8374
  • Mfr. Part No. C10G6
1 Pack of 10
£11.01(exc. VAT)
  • RS Stock No. 849-6490
  • Mfr. Part No. EUC1P4C
Each
£6.92(exc. VAT)
  • RS Stock No. 488-6836
  • Mfr. Part No. 2CDS251001R0104 - S201C10
Each
£16.45(exc. VAT)
  • RS Stock No. 227-0738
  • Mfr. Part No. 267448 PFGM-63/2/003-A
Each
£66.44(exc. VAT)
  • RS Stock No. 344-5333
  • Mfr. Part No. 1658-G21-02-P10-16A
Each
£4.86(exc. VAT)
  • RS Stock No. 186-3471
  • Mfr. Part No. 2CSS245102R0104
Each
£10.02(exc. VAT)
  • RS Stock No. 563-542
1 Pack of 10
£2.85(exc. VAT)
  • RS Stock No. 265-0192
Each
£8.57(exc. VAT)
  • RS Stock No. 265-0191
Each
£8.57(exc. VAT)
  • RS Stock No. 537-1177
  • Mfr. Part No. S500-2-R
1 Pack of 10
£1.80(exc. VAT)
  • RS Stock No. 250-6314
  • Mfr. Part No. 03500417TXN
Each
£17.98(exc. VAT)
  • RS Stock No. 412-605
  • Mfr. Part No. TDC180-13A
Each (In a Pack of 10)
£0.548(exc. VAT)
  • RS Stock No. 831-9163
  • Mfr. Part No. 1SDA067414R1 XT1N 160 TMD 63-630 3p F F
Each
£226.10(exc. VAT)
  • RS Stock No. 521-2589
Each (In a Pack of 5)
£4.622(exc. VAT)
  • RS Stock No. 537-1212
  • Mfr. Part No. S500-1-R
1 Pack of 10
£1.83(exc. VAT)
  • RS Stock No. 247-9212
  • Mfr. Part No. NITD32
Each (In a Pack of 5)
£5.18(exc. VAT)
  • RS Stock No. 125-1496
  • Mfr. Part No. 1492-SPM1D040
Each
£19.92(exc. VAT)
Better World
  • RS Stock No. 791-3385
  • Mfr. Part No. A9F54306
Each
£117.64(exc. VAT)
Better World
  • RS Stock No. 791-3401
  • Mfr. Part No. A9F54350
Each
£133.61(exc. VAT)
Better World
  • RS Stock No. 746-7643
  • Mfr. Part No. 2CDS251001R0034 S201-C3
Each
£17.26(exc. VAT)
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