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.

51028 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 242-1077
Each
£9.61(exc. VAT)
  • RS Stock No. 831-9208
  • Mfr. Part No. 1SDA066655R1 LTC XT1 3p TERMINAL COVERS LOW 2pcs
Each (In a Pack of 2)
£15.03(exc. VAT)
  • RS Stock No. 922-6999
  • Mfr. Part No. 278549 FAZ-C2/1
Each
£27.75(exc. VAT)
  • RS Stock No. 537-1509
  • Mfr. Part No. S505-3.15-R
1 Pack of 10
£2.22(exc. VAT)
  • RS Stock No. 521-2573
Each (In a Pack of 5)
£4.594(exc. VAT)
  • RS Stock No. 521-2595
Each (In a Pack of 5)
£4.622(exc. VAT)
  • RS Stock No. 247-4059
1 Pack of 10
£10.98(exc. VAT)
  • RS Stock No. 265-0166
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£9.01(exc. VAT)
  • RS Stock No. 265-0182
Each
£21.28(exc. VAT)
Better World
  • RS Stock No. 791-3388
  • Mfr. Part No. A9F54310
Each
£106.92(exc. VAT)
Better World
  • RS Stock No. 231-9658
  • Mfr. Part No. 2CDS251001R0025 S200-1P-B2A
1 Box of 1
£24.61(exc. VAT)
  • RS Stock No. 668-5963
1 Pack of 10
£3.17(exc. VAT)
Better World
  • RS Stock No. 790-9305
  • Mfr. Part No. A9D11820
Each
£148.47(exc. VAT)
Better World
  • RS Stock No. 791-3565
  • Mfr. Part No. A9F55310
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£113.61(exc. VAT)
Better World
  • RS Stock No. 791-3326
  • Mfr. Part No. A9F54202
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£92.21(exc. VAT)
  • RS Stock No. 849-6547
  • Mfr. Part No. EUC2P10C
Each
£15.36(exc. VAT)
  • RS Stock No. 412-598
  • Mfr. Part No. TDC180-10A
Each (In a Pack of 10)
£0.52(exc. VAT)
  • RS Stock No. 769-4560
  • Mfr. Part No. 239037 FAZ6-C16/1
Each
£20.67(exc. VAT)
  • RS Stock No. 288-4615
  • Mfr. Part No. JF 16-250 M10
Each
£6.19(exc. VAT)
  • RS Stock No. 254-4120
  • Mfr. Part No. PF-FB1-225
Each
£143.87(exc. VAT)
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