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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Better World
  • RS Stock No. 210-1695
  • Mfr. Part No. 3VA1332-4EF32-0AA0
Each
£870.22(exc. VAT)
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  • Mfr. Part No. 102211 FAZ-C20/2-RT
Each
£41.82(exc. VAT)
  • RS Stock No. 767-5190
Each (In a Pack of 10)
£0.439(exc. VAT)
  • RS Stock No. 263-083
  • Mfr. Part No. 303648 IZM63N3-V50W-1
Each
£39,153.05(exc. VAT)
Better World
  • RS Stock No. 236-6770
  • Mfr. Part No. 1SDA068489R1 XT4S 160 Ekip LSIG 160A FF
Each
£1,490.02(exc. VAT)
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  • Mfr. Part No. 0 133 01
Each (In a Box of 10)
£2.03(exc. VAT)
  • RS Stock No. 357-461
  • Mfr. Part No. BGF16060
Each
£289.57(exc. VAT)
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  • Mfr. Part No. HP6M10
Each
£7.11(exc. VAT)
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  • Mfr. Part No. A9F94350
Each
£316.72(exc. VAT)
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  • Mfr. Part No. 2CCS571103R8317
Each
£88.93(exc. VAT)
  • RS Stock No. 127-224
  • Mfr. Part No. 183038 XNH00-FCL-S160-BT2
Each
£118.85(exc. VAT)
  • RS Stock No. 228-785
  • Mfr. Part No. CEO63
1 Pack of 10
£307.34(exc. VAT)
  • RS Stock No. 849-5645
  • Mfr. Part No. GMC-6-3-R
Each
£3.03(exc. VAT)
  • RS Stock No. 725-8041
  • Mfr. Part No. 021601.6MXP
Each (In a Bag of 10)
£1.301(exc. VAT)
  • RS Stock No. 848-4380
  • Mfr. Part No. LP-CC-25
Each
£38.68(exc. VAT)
  • RS Stock No. 336-608
  • Mfr. Part No. SE10C120
Each
£23.23(exc. VAT)
  • RS Stock No. 627-062
  • Mfr. Part No. 3NC2350-0MK
1 Pack of 5
£184.72(exc. VAT)
  • RS Stock No. 647-8459
  • Mfr. Part No. MF-R020
Each (In a Pack of 10)
£0.304(exc. VAT)
  • RS Stock No. 187-5231
  • Mfr. Part No. 5ST3777-0
Each
£182.30(exc. VAT)
Better World
  • RS Stock No. 270-3591
  • Mfr. Part No. 3VA2010-7KP42-0AA0
Each
£1,149.54(exc. VAT)
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