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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  • Mfr. Part No. 1499967
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£5.57(exc. VAT)
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£85.83(exc. VAT)
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  • Mfr. Part No. TKM250
Each
£95.95(exc. VAT)
Better World
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£35.23(exc. VAT)
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1 Box of 5
£1,036.36(exc. VAT)
  • RS Stock No. 247-9234
  • Mfr. Part No. CM32FCW
Each
£16.86(exc. VAT)
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  • Mfr. Part No. 2CSR275051R1104 DSE201 M C10 AC30 - N Blue
Each
£122.57(exc. VAT)
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Each (In a Pack of 5)
£48.682(exc. VAT)
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£36.39(exc. VAT)
Better World
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Each
£1,002.11(exc. VAT)
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£52.94(exc. VAT)
Better World
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1 Box of 1
£23.39(exc. VAT)
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  • Mfr. Part No. 1SDA068191R1 XT2 P FP HR
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£274.19(exc. VAT)
Better World
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£47.25(exc. VAT)
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Each (In a Pack of 10)
£0.454(exc. VAT)
  • RS Stock No. 221-3694
1 Bag of 5
£21.92(exc. VAT)
  • RS Stock No. 248-920
  • Mfr. Part No. 187253 AFDD-13/2/B/003-F
Each
£188.78(exc. VAT)
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  • Mfr. Part No. HP10M10
Each (In a Box of 10)
£8.881(exc. VAT)
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  • Mfr. Part No. 0451003.MRL
Each (In a Pack of 10)
£1.571(exc. VAT)
  • RS Stock No. 375-9733
  • Mfr. Part No. N211083
Each
£22.00(exc. VAT)
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