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. 254-4225
  • Mfr. Part No. PF-NT2-60
Each
£20.29(exc. VAT)
  • RS Stock No. 169-9538
  • Mfr. Part No. SS-5-800MA-BK
Each (In a Bag of 200)
£0.70(exc. VAT)
  • RS Stock No. 293-8244
  • Mfr. Part No. 0 126 25
Each (In a Pack of 10)
£2.264(exc. VAT)
  • RS Stock No. 125-1473
  • Mfr. Part No. 1492-SPM2C160
Each
£42.28(exc. VAT)
Better World
  • RS Stock No. 219-8295
  • Mfr. Part No. A9N18457
Each
£200.41(exc. VAT)
Better World
  • RS Stock No. 211-9636
  • Mfr. Part No. 5SV3317-6
Each
£408.90(exc. VAT)
  • RS Stock No. 599-472
  • Mfr. Part No. 2CDS253103R0324
Each
£253.40(exc. VAT)
Better World
  • RS Stock No. 221-1273
  • Mfr. Part No. LV432631
Each
£35.04(exc. VAT)
Better World
  • RS Stock No. 212-8825
  • Mfr. Part No. 5SY4113-8
Each
£20.36(exc. VAT)
  • RS Stock No. 147-913
  • Mfr. Part No. 3VA5215-5EF31-2AA0
Each
£843.55(exc. VAT)
Better World
  • RS Stock No. 211-2444
  • Mfr. Part No. M9F43203
Each
£125.09(exc. VAT)
  • RS Stock No. 265-8972
  • Mfr. Part No. 1110986
Each
£361.02(exc. VAT)
  • RS Stock No. 415-092
  • Mfr. Part No. RS200H
Each
£229.22(exc. VAT)
Better World
  • RS Stock No. 221-1247
  • Mfr. Part No. LV432523
Each
£31.38(exc. VAT)
Better World
  • RS Stock No. 791-3228
  • Mfr. Part No. A9F53310
Each
£109.54(exc. VAT)
  • RS Stock No. 180-6114
  • Mfr. Part No. 0 133 02
Each (In a Box of 10)
£1.85(exc. VAT)
  • RS Stock No. 147-643
  • Mfr. Part No. 3VA5210-6EF31-0AA0
Each
£878.95(exc. VAT)
  • RS Stock No. 876-8442
  • Mfr. Part No. KLDR005.TXP
Each
£38.60(exc. VAT)
  • RS Stock No. 200-119
  • Mfr. Part No. 2CDS271337R0054
Each
£45.50(exc. VAT)
  • RS Stock No. 247-2966
  • Mfr. Part No. Z1056665
1 Box of 10
£256.07(exc. VAT)
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