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.

52702 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 231-9680
  • Mfr. Part No. 2CDS253001R0804 S203-C80 6kA 80A
Subtotal (1 box of 1 unit)
£162.20(exc. VAT)
£162.20/box
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  • RS Stock No. 390-2448
Subtotal (1 pack of 10 units)
£17.55(exc. VAT)
£17.55/pack
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  • RS Stock No. 414-061
Subtotal (1 pack of 10 units)
£14.09(exc. VAT)
£14.09/pack
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  • RS Stock No. 787-4120
  • Mfr. Part No. 0287015.PXCN
Subtotal (1 pack of 10 units)
£2.54(exc. VAT)
£2.54/pack
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  • RS Stock No. 125-1479
  • Mfr. Part No. 1492-SPM3C010
Subtotal (1 unit)
£74.85(exc. VAT)
£74.85/unit
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RS Better World
  • RS Stock No. 221-1214
  • Mfr. Part No. LV429515
Subtotal (1 unit)
£26.00(exc. VAT)
£26.00/unit
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  • RS Stock No. 791-3174
  • Mfr. Part No. A9F53140
Subtotal (1 unit)
£30.88(exc. VAT)
£30.88/unit
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  • RS Stock No. 210-4753
  • Mfr. Part No. EUR140.30/4A
Subtotal (1 unit)
£66.91(exc. VAT)
£66.91/unit
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  • RS Stock No. 624-0456
  • Mfr. Part No. 278869 FAZ-C10/3
Subtotal (1 unit)
£95.22(exc. VAT)
£95.22/unit
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  • RS Stock No. 339-312
  • Mfr. Part No. SE10C363
Subtotal (1 unit)
£126.82(exc. VAT)
£126.82/unit
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RS Better World
  • RS Stock No. 213-1070
  • Mfr. Part No. 5SY4111-7
Subtotal (1 unit)
£22.29(exc. VAT)
£22.29/unit
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RS Better World
  • RS Stock No. 806-7228
  • Mfr. Part No. A9XPH112
Subtotal (1 unit)
£17.70(exc. VAT)
£17.70/unit
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  • RS Stock No. 791-3512
  • Mfr. Part No. A9F55210
Subtotal (1 unit)
£85.12(exc. VAT)
£85.12/unit
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RS Better World
  • RS Stock No. 231-9975
  • Mfr. Part No. 2CSS255101R0164 SN201-C16 -
Subtotal (1 unit)
£33.49(exc. VAT)
£33.49/unit
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  • RS Stock No. 849-6588
  • Mfr. Part No. EUC3P6C
Subtotal (1 unit)
£22.40(exc. VAT)
£22.40/unit
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  • RS Stock No. 849-6544
  • Mfr. Part No. EUC2P6C
Subtotal (1 unit)
£15.36(exc. VAT)
£15.36/unit
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RS Better World
  • RS Stock No. 212-166
  • Mfr. Part No. A9D07616
Subtotal (1 unit)
£60.50(exc. VAT)
£60.50/unit
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  • RS Stock No. 242-1083
Subtotal (1 unit)
£19.18(exc. VAT)
£19.18/unit
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  • RS Stock No. 265-0165
Subtotal (1 unit)
£8.67(exc. VAT)
£8.67/unit
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RS Better World
  • RS Stock No. 521-4939
  • Mfr. Part No. 5SY6102-7
Subtotal (1 unit)
£20.07(exc. VAT)
£20.07/unit
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