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.

50907 Products showing for Fuses & Circuit Breakers

560 of 999+
  • RS Stock No. 646-813
  • Mfr. Part No. 568720
Each
£6.98(exc. VAT)
Better World
  • RS Stock No. 201-2249
  • Mfr. Part No. A9DF7616
Each
£179.36(exc. VAT)
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  • Mfr. Part No. 2909904
Each
£45.47(exc. VAT)
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Each
£25.51(exc. VAT)
  • RS Stock No. 849-6478
  • Mfr. Part No. EUC1P32B
Each
£7.91(exc. VAT)
  • RS Stock No. 229-193
  • Mfr. Part No. C14G6S CYL FUSE >STR >14 x 51 6A GG 690V AC
1 Pack of 10
£57.58(exc. VAT)
  • RS Stock No. 212-8929
  • Mfr. Part No. 5SJ4110-7HG41
Each
£48.37(exc. VAT)
  • RS Stock No. 182-1607
  • Mfr. Part No. LPJ-17-1-2SP
Each
£50.14(exc. VAT)
  • RS Stock No. 539-0112
  • Mfr. Part No. 2CSS200911R0005 S2C-UA 230 AC
Each
£81.91(exc. VAT)
  • RS Stock No. 565-367
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Each
£26.32(exc. VAT)
Better World
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Each
£119.95(exc. VAT)
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  • Mfr. Part No. EMCH310 EMCH310
Each
£102.62(exc. VAT)
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  • Mfr. Part No. V216655
1 Box of 10
£32.83(exc. VAT)
  • RS Stock No. 339-790
  • Mfr. Part No. SEE145C03
Each
£137.42(exc. VAT)
  • RS Stock No. 243-026
  • Mfr. Part No. 191580 NZMN3-MX220-AVE
Each
£2,315.48(exc. VAT)
  • RS Stock No. 288-4025
  • Mfr. Part No. 17 8402 0
Each
£32.68(exc. VAT)
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  • Mfr. Part No. 170M6811
Each
£132.60(exc. VAT)
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  • Mfr. Part No. 3NA6240
Each (In a Pack of 3)
£21.847(exc. VAT)
Better World
  • RS Stock No. 328-544
  • Mfr. Part No. 5SL6020-6
Each
£33.71(exc. VAT)
  • RS Stock No. 712-7521
  • Mfr. Part No. AHEF500
Each (In a Pack of 10)
£1.08(exc. VAT)
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