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. 273-2276
  • Mfr. Part No. 140MT-C-AFAR10A10
Each
£14.65(exc. VAT)
  • RS Stock No. 236-7235
  • Mfr. Part No. 1SDA067283R1 TMG 160-480 XT2 4p
Each
£237.07(exc. VAT)
  • RS Stock No. 288-4089
  • Mfr. Part No. 2-5700-IG2-P10-10A
Each
£16.67(exc. VAT)
  • RS Stock No. 684-3601
  • Mfr. Part No. 0916608
Each
£18.05(exc. VAT)
  • RS Stock No. 852-7099
  • Mfr. Part No. MDL-1-16-R
Each
£6.61(exc. VAT)
  • RS Stock No. 738-2790P
  • Mfr. Part No. 0218005.MXP
Each (Supplied in a Box)
£0.94(exc. VAT)
  • RS Stock No. 184-9103
  • Mfr. Part No. DD041MS
Each
£74.06(exc. VAT)
  • RS Stock No. 725-8045
  • Mfr. Part No. 0217.032MXP
Each (In a Bag of 10)
£1.715(exc. VAT)
  • RS Stock No. 684-3597
  • Mfr. Part No. 0916606
Each
£18.05(exc. VAT)
  • RS Stock No. 123-600
  • Mfr. Part No. 170434 FRCMM-80/2/003-A
Each
£265.91(exc. VAT)
Better World
  • RS Stock No. 256-4051
  • Mfr. Part No. A9MEM1590
Each
£795.86(exc. VAT)
  • RS Stock No. 181-8453
  • Mfr. Part No. STD10
1 Box of 20
£52.83(exc. VAT)
Better World
  • RS Stock No. 772-1381
  • Mfr. Part No. 5SY4325-8
Each
£83.14(exc. VAT)
  • RS Stock No. 181-8589
  • Mfr. Part No. C10M8
Each (In a Box of 10)
£1.016(exc. VAT)
  • RS Stock No. 339-331
  • Mfr. Part No. BDL26050LU
Each
£284.45(exc. VAT)
Better World
  • RS Stock No. 271-9487
  • Mfr. Part No. 3VA1225-6FF42-0AA0
Each
£1,070.92(exc. VAT)
  • RS Stock No. 867-4359
  • Mfr. Part No. 3101.0110
Each
£5.87(exc. VAT)
Better World
  • RS Stock No. 219-8847
  • Mfr. Part No. KBA25ED2302W
Each (In a Pack of 6)
£71.932(exc. VAT)
  • RS Stock No. 265-0199
Each
£9.17(exc. VAT)
  • RS Stock No. 893-8546
Each
£54.40(exc. VAT)
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