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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  • RS Stock No. 152-515
  • Mfr. Part No. 3VA9603-0KP10
Each
£62.85(exc. VAT)
  • RS Stock No. 417-098A
  • Mfr. Part No. FX0321
Each (In a Pack of 50)
£1.184(exc. VAT)
Better World
  • RS Stock No. 268-480
  • Mfr. Part No. 3VA6140-5HM31-0AA0
Each
£737.26(exc. VAT)
Better World
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  • Mfr. Part No. DF2CN04
Each (In a Pack of 10)
£8.504(exc. VAT)
  • RS Stock No. 182-1511
  • Mfr. Part No. XS125
Each (In a Box of 10)
£68.365(exc. VAT)
  • RS Stock No. 161-7617
  • Mfr. Part No. S506-800-R
1 Bag of 1000
£116.29(exc. VAT)
  • RS Stock No. 237-6222
  • Mfr. Part No. 1SDA067039R1 XT2N 160 TMA 100A FF
Each
£392.91(exc. VAT)
Better World
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  • Mfr. Part No. 5SY6213-7
Each
£46.06(exc. VAT)
Better World
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  • Mfr. Part No. 3VA2440-5HL42-0AA0
Each
£1,809.32(exc. VAT)
  • RS Stock No. 203-3814
  • Mfr. Part No. 3RV2917-5A
Each (In a Pack of 10)
£3.878(exc. VAT)
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Each (In a Pack of 100)
£0.191(exc. VAT)
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  • Mfr. Part No. 3VA6580-7KQ42-0AA0
Each
£5,493.43(exc. VAT)
Better World
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  • Mfr. Part No. 1SDA067740R1 XT2S 160 TMG 25A FF
Each
£294.62(exc. VAT)
  • RS Stock No. 335-093
  • Mfr. Part No. BDF36070
Each
£310.76(exc. VAT)
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  • Mfr. Part No. 8PQ6000-5BA77
Each
£471.12(exc. VAT)
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  • Mfr. Part No. 189-AL11
Each
£18.13(exc. VAT)
  • RS Stock No. 221-3633
Each (In a Pack of 5)
£21.384(exc. VAT)
  • RS Stock No. 250-4463
  • Mfr. Part No. 1SCA022700R9790
1 Box of 3
£51.68(exc. VAT)
  • RS Stock No. 608-687
  • Mfr. Part No. 3NB1137-1KK11
1 Pack of 3
£543.01(exc. VAT)
Better World
  • RS Stock No. 213-1089
  • Mfr. Part No. 5SY7250-7
Each
£146.77(exc. VAT)
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