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.

51014 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 240-6406
  • Mfr. Part No. CPR100030A
Each
£90.86(exc. VAT)
Better World
  • RS Stock No. 746-7652
  • Mfr. Part No. 2CDS251001R0044 S201-C4
Each
£16.93(exc. VAT)
Better World
  • RS Stock No. 850-8596
  • Mfr. Part No. EZ9F16103
Each
£4.03(exc. VAT)
Better World
  • RS Stock No. 203-2269
  • Mfr. Part No. 5SY6104-6
Each
£17.81(exc. VAT)
Better World
  • RS Stock No. 791-3341
  • Mfr. Part No. A9F54210
Each
£73.51(exc. VAT)
Better World
  • RS Stock No. 850-8606
  • Mfr. Part No. EZ9F16120
Each
£4.03(exc. VAT)
  • RS Stock No. 521-4816
  • Mfr. Part No. 5SJ6113-7KS
Each
£15.75(exc. VAT)
  • RS Stock No. 789-7808
  • Mfr. Part No. 0001.2516
Each (In a Bag of 10)
£0.514(exc. VAT)
  • RS Stock No. 336-613
  • Mfr. Part No. SE10D316
Each
£103.09(exc. VAT)
  • RS Stock No. 177-8117
Each (In a Pack of 20)
£0.528(exc. VAT)
Better World
  • RS Stock No. 202-7122
  • Mfr. Part No. 5SL6204-7
Each
£50.55(exc. VAT)
  • RS Stock No. 414-601
  • Mfr. Part No. FX0380
Each (In a Pack of 5)
£8.15(exc. VAT)
Better World
  • RS Stock No. 219-9114
  • Mfr. Part No. M9F22102
Each
£28.38(exc. VAT)
  • RS Stock No. 230-1082
  • Mfr. Part No. 264742 PLG4-C4/1N
Each
£13.93(exc. VAT)
  • RS Stock No. 647-8522
  • Mfr. Part No. MF-R110
Each (In a Pack of 10)
£0.22(exc. VAT)
  • RS Stock No. 563-740
1 Pack of 10
£3.77(exc. VAT)
  • RS Stock No. 413-349
  • Mfr. Part No. AAO16
1 Pack of 5
£29.14(exc. VAT)
  • RS Stock No. 144-1826
  • Mfr. Part No. 8020.5024.G
Each (In a Bag of 10)
£0.724(exc. VAT)
  • RS Stock No. 797-6046
  • Mfr. Part No. SF 070 R
Each (In a Pack of 10)
£0.829(exc. VAT)
  • RS Stock No. 414-213
  • Mfr. Part No. DIN-20-32
Each (In a Pack of 10)
£3.525(exc. VAT)
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