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

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Better World
  • RS Stock No. 175-1549
  • Mfr. Part No. GV4PE50S6
Each
£727.89(exc. VAT)
  • RS Stock No. 210-3518
  • Mfr. Part No. 3VA9201-0QE20
Each
£16.95(exc. VAT)
  • RS Stock No. 257-514
  • Mfr. Part No. 3VA5570-7EC42-2AA0
Each
£3,649.53(exc. VAT)
  • RS Stock No. 228-763
  • Mfr. Part No. C22G32 CYLINDRICAL FUSE 22 x 58 32A GG 690V AC
1 Pack of 10
£26.18(exc. VAT)
Better World
  • RS Stock No. 236-6798
  • Mfr. Part No. 1SDA068539R1 XT4H 160 Ekip I 160A FF
Each
£942.81(exc. VAT)
  • RS Stock No. 218-1794
  • Mfr. Part No. 3VA9114-0QE00
Each
£58.05(exc. VAT)
  • RS Stock No. 610-546
  • Mfr. Part No. 5SY7414-8
Each
£229.16(exc. VAT)
  • RS Stock No. 210-6960
  • Mfr. Part No. 3NE1331-2
Each (In a Pack of 3)
£339.997(exc. VAT)
  • RS Stock No. 897-8989P
  • Mfr. Part No. SF-0603S050-2
Each (Supplied on a Reel)
£0.361(exc. VAT)
  • RS Stock No. 246-2462
  • Mfr. Part No. 2CCS562001R1024
Each
£136.80(exc. VAT)
  • RS Stock No. 223-2817
  • Mfr. Part No. 60330125
Each (In a Pack of 10)
£3.348(exc. VAT)
  • RS Stock No. 257-630
  • Mfr. Part No. 3VA5460-6EC41-0AA0
Each
£2,432.27(exc. VAT)
  • RS Stock No. 253-703
  • Mfr. Part No. 250NHG02BI
1 Pack of 3
£25.29(exc. VAT)
Better World
  • RS Stock No. 268-566
  • Mfr. Part No. 3VA6110-5HL41-0AA0
Each
£651.64(exc. VAT)
  • RS Stock No. 270-7942
  • Mfr. Part No. 3403.0172.11
Each
£0.77(exc. VAT)
  • RS Stock No. 284-2375
Each
£94.21(exc. VAT)
Better World
  • RS Stock No. 211-2390
  • Mfr. Part No. M9F23120
Each
£28.79(exc. VAT)
  • RS Stock No. 347-117
  • Mfr. Part No. C25B44B240
Each
£4,295.70(exc. VAT)
  • RS Stock No. 260-7547
  • Mfr. Part No. C11B4TM080B
Each
£438.75(exc. VAT)
  • RS Stock No. 231-8365
  • Mfr. Part No. 5SP3835-3
Each
£391.34(exc. VAT)
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