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

2 of 999+
  • RS Stock No. 501-871
Each
£9.65(exc. VAT)
  • RS Stock No. 242-1049
Each (In a Pack of 5)
£2.764(exc. VAT)
  • RS Stock No. 811-1880
  • Mfr. Part No. 1SL1200A00 65P04X12
Each
£23.18(exc. VAT)
  • RS Stock No. 849-6493
  • Mfr. Part No. EUC1P1C
Each
£5.61(exc. VAT)
  • RS Stock No. 488-6296
  • Mfr. Part No. 2CDS251001R0064 S201-C6
Each
£16.45(exc. VAT)
  • RS Stock No. 563-633
1 Pack of 10
£2.85(exc. VAT)
  • RS Stock No. 183-3540
  • Mfr. Part No. 236948 PXK-B16/1N/003-A
Each
£64.27(exc. VAT)
  • RS Stock No. 248-5335
  • Mfr. Part No. PIQTER500
Each
£49.72(exc. VAT)
  • RS Stock No. 265-0205
Each
£28.37(exc. VAT)
  • RS Stock No. 179-3066
  • Mfr. Part No. 83230111 / STPT23-20K275V-2PG-LFM
Each
£82.52(exc. VAT)
Better World
  • RS Stock No. 131-955
  • Mfr. Part No. 2CDS272001R0324 S202M-C32
Each
£52.80(exc. VAT)
  • RS Stock No. 849-6601
  • Mfr. Part No. EUC3P40C
Each
£22.40(exc. VAT)
  • RS Stock No. 563-425
1 Pack of 10
£2.85(exc. VAT)
  • RS Stock No. 265-0197
Each
£8.57(exc. VAT)
  • RS Stock No. 230-1077
  • Mfr. Part No. 264741 PLG4-C2/1N
Each
£12.28(exc. VAT)
  • RS Stock No. 825-5582
  • Mfr. Part No. P1MB1PC02
Each
£17.93(exc. VAT)
  • RS Stock No. 255-621
  • Mfr. Part No. 266633 NZM2-XHBR
Each
£119.90(exc. VAT)
  • RS Stock No. 466-0527
  • Mfr. Part No. 13441
Each
£84.16(exc. VAT)
  • RS Stock No. 811-1899
  • Mfr. Part No. 1SL1201A00 65P08X12
Each
£25.95(exc. VAT)
Better World
  • RS Stock No. 791-3297
  • Mfr. Part No. A9F54116
Each
£24.20(exc. VAT)
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