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.

50907 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 282-2361
  • Mfr. Part No. PE-FB50160Q1
Each (In a Pack of 8)
£7.589(exc. VAT)
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  • Mfr. Part No. FB243864Q1
Each
£136.45(exc. VAT)
  • RS Stock No. 849-6478
  • Mfr. Part No. EUC1P32B
Each
£7.91(exc. VAT)
  • RS Stock No. 259-3688
  • Mfr. Part No. 1SDA071661R1
Each
£7,281.89(exc. VAT)
  • RS Stock No. 231-9320
  • Mfr. Part No. 1SDA073916R1 E4.2 W FP Iu=4000
Each
£3,589.69(exc. VAT)
  • RS Stock No. 260-7785
  • Mfr. Part No. C16H4
Each
£679.41(exc. VAT)
  • RS Stock No. 289-1598
  • Mfr. Part No. 1SL9167A00
Each
£86.45(exc. VAT)
  • RS Stock No. 624-0428
  • Mfr. Part No. 278867 FAZ-C6/3
Each
£103.18(exc. VAT)
  • RS Stock No. 281-5988
  • Mfr. Part No. FB1001120Q1
Each
£69.81(exc. VAT)
  • RS Stock No. 248-2235
  • Mfr. Part No. 0914455
Each (In a Pack of 6)
£91.517(exc. VAT)
  • RS Stock No. 895-1669P
  • Mfr. Part No. 37205000431
Each (Supplied in a Bag)
£0.844(exc. VAT)
  • RS Stock No. 259-4418
  • Mfr. Part No. 1SDA072598R1
Each
£25,762.53(exc. VAT)
  • RS Stock No. 255-209
  • Mfr. Part No. 240735 BF-O-5/120-A
Each
£301.87(exc. VAT)
  • RS Stock No. 231-8358
  • Mfr. Part No. 5SP3763-3
Each
£97.21(exc. VAT)
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  • Mfr. Part No. 2CCS891001R0401
Each
£80.22(exc. VAT)
  • RS Stock No. 597-993
  • Mfr. Part No. ADH823F
Each
£260.86(exc. VAT)
  • RS Stock No. 140-315
  • Mfr. Part No. 2CCS881001R0401
Each
£50.18(exc. VAT)
  • RS Stock No. 201-6971
  • Mfr. Part No. 2CSR255080R1255 DS201 B25 AC30
Each
£118.35(exc. VAT)
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  • Mfr. Part No. 2569000
Each (In a Pack of 5)
£10.804(exc. VAT)
  • RS Stock No. 182-1480
  • Mfr. Part No. 80KR85
Each (In a Box of 20)
£6.349(exc. VAT)
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