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. 124-2505
  • Mfr. Part No. 7TCA083670R0634 LK207-8
Each
£262.43(exc. VAT)
Better World
  • RS Stock No. 203-2305
  • Mfr. Part No. 5SY5116-7
Each
£41.35(exc. VAT)
  • RS Stock No. 259-4320
  • Mfr. Part No. 1SDA072474R1
Each
£11,865.79(exc. VAT)
  • RS Stock No. 458-8740
  • Mfr. Part No. 1180-01-10A
Each
£11.29(exc. VAT)
  • RS Stock No. 250-8649
  • Mfr. Part No. LF550G
Each (In a Pack of 10)
£6.81(exc. VAT)
  • RS Stock No. 101-788
Each
£53.54(exc. VAT)
  • RS Stock No. 247-2820
  • Mfr. Part No. L1010170
1 Box of 10
£58.25(exc. VAT)
Better World
  • RS Stock No. 791-3436
  • Mfr. Part No. A9F54416
Each
£179.09(exc. VAT)
  • RS Stock No. 359-5955
  • Mfr. Part No. FX0296
Each (In a Pack of 5)
£7.34(exc. VAT)
  • RS Stock No. 270-3027
  • Mfr. Part No. E090509
Each (In a Box of 10)
£0.409(exc. VAT)
  • RS Stock No. 169-9554
  • Mfr. Part No. SS-5H-6-3A-BK
Each (In a Bag of 200)
£0.305(exc. VAT)
  • RS Stock No. 647-8651P
  • Mfr. Part No. MF-R1100
Each (Supplied in a Bag)
£0.497(exc. VAT)
  • RS Stock No. 244-940
  • Mfr. Part No. SE48B250
Each
£622.76(exc. VAT)
  • RS Stock No. 654-798
  • Mfr. Part No. A9R21425
Each
£271.24(exc. VAT)
  • RS Stock No. 337-7959
  • Mfr. Part No. 155.0892.6151
Each
£9.50(exc. VAT)
Better World
  • RS Stock No. 231-9973
  • Mfr. Part No. 2CSS255101R0104 SN201-C10 -
1 Box of 1
£33.49(exc. VAT)
  • RS Stock No. 610-9692
Each (In a Pack of 10)
£0.34(exc. VAT)
  • RS Stock No. 231-9738
  • Mfr. Part No. 2CDS272337R0064 SU202M-C6
1 Box of 1
£104.14(exc. VAT)
  • RS Stock No. 270-7958
  • Mfr. Part No. 3405.0171.24
Each
£0.70(exc. VAT)
  • RS Stock No. 247-1849
  • Mfr. Part No. 33640
Each
£300.79(exc. VAT)
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