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. 181-8853
  • Mfr. Part No. 160MJ31-7
Each
£62.81(exc. VAT)
  • RS Stock No. 610-9816
1 Pack of 10
£4.74(exc. VAT)
  • RS Stock No. 611-0282
Each (In a Pack of 10)
£1.191(exc. VAT)
  • RS Stock No. 237-5266
Each
£3.41(exc. VAT)
  • RS Stock No. 789-7826
  • Mfr. Part No. 0034.1513
Each (In a Bag of 10)
£0.215(exc. VAT)
  • RS Stock No. 231-9939
  • Mfr. Part No. 2CSR255151R1324 DSE201 C32 A30
Each
£62.73(exc. VAT)
Better World
  • RS Stock No. 212-1625
  • Mfr. Part No. 2CDS252280R0164
Each
£40.04(exc. VAT)
  • RS Stock No. 847-3342
  • Mfr. Part No. 102173 FAZ-C30/2-NA
Each
£88.38(exc. VAT)
  • RS Stock No. 466-0527
  • Mfr. Part No. 13441
Each
£84.16(exc. VAT)
  • RS Stock No. 139-990
  • Mfr. Part No. ED315
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£27.90(exc. VAT)
  • RS Stock No. 144-4948
  • Mfr. Part No. MJT702
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£31.10(exc. VAT)
  • RS Stock No. 418-495
  • Mfr. Part No. 32NNSF
Each
£9.76(exc. VAT)
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  • Mfr. Part No. 2CCF002772R0001 ZLS200
1 Box of 1
£35.48(exc. VAT)
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Each
£14.77(exc. VAT)
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Each (In a Pack of 10)
£0.155(exc. VAT)
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  • Mfr. Part No. 101319 PLI-C10/3
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£109.69(exc. VAT)
  • RS Stock No. 783-3387
  • Mfr. Part No. 70-059-60/12.5A
Each (In a Pack of 10)
£0.458(exc. VAT)
  • RS Stock No. 414-061A
Each (In a Pack of 100)
£1.146(exc. VAT)
  • RS Stock No. 918-2697
Each
£68.83(exc. VAT)
  • RS Stock No. 782-0882
  • Mfr. Part No. W23-X1A1G-50
Each
£26.96(exc. VAT)
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