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. 218-8807
  • Mfr. Part No. 1492-SPM2D150
Each
£43.75(exc. VAT)
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Each
£5,288.78(exc. VAT)
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Each (In a Pack of 5)
£16.302(exc. VAT)
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Each (In a Pack of 10)
£0.745(exc. VAT)
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  • Mfr. Part No. 0034.3109
Each (In a Pack of 10)
£0.582(exc. VAT)
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  • Mfr. Part No. C16H32M150
Each
£1,128.62(exc. VAT)
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  • Mfr. Part No. 140MT-C-W452
Each
£10.82(exc. VAT)
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  • Mfr. Part No. BAO50
1 Pack of 20
£362.00(exc. VAT)
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Each
£15.47(exc. VAT)
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  • Mfr. Part No. A9A26982
Each (In a Pack of 12)
£2.617(exc. VAT)
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  • Mfr. Part No. 4 076 94
Each
£110.62(exc. VAT)
Better World
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Each
£228.14(exc. VAT)
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Each
£158.78(exc. VAT)
Better World
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  • Mfr. Part No. 5SU1346-6FP06
Each
£301.09(exc. VAT)
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  • Mfr. Part No. 114315 D02-SO/63/3-R-27
Each
£23.89(exc. VAT)
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  • Mfr. Part No. MF-PSMF010X-2
Each (In a Pack of 5)
£0.256(exc. VAT)
  • RS Stock No. 225-6096
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Each
£150.68(exc. VAT)
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  • Mfr. Part No. 1SDA067044R1 XT2N 160 MF 1 FF
Each
£216.40(exc. VAT)
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  • Mfr. Part No. C25V36M220
Each
£3,422.93(exc. VAT)
  • RS Stock No. 228-667
  • Mfr. Part No. C14G2
1 Pack of 10
£16.40(exc. VAT)
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