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. 225-5927
  • Mfr. Part No. 2CCF019607R0001 S802PV-SP100 - 5 kA
Each
£266.01(exc. VAT)
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  • Mfr. Part No. 103027 NZMN1-S3-CNA
Each
£414.12(exc. VAT)
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  • Mfr. Part No. 269146 NZMB2-AF35-NA
Each
£424.32(exc. VAT)
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  • Mfr. Part No. 3960500000
Each (In a Pack of 10)
£0.661(exc. VAT)
  • RS Stock No. 229-184
  • Mfr. Part No. C14G1
1 Pack of 10
£16.40(exc. VAT)
  • RS Stock No. 176-9636
  • Mfr. Part No. F204F-40/0.03
Each
£661.24(exc. VAT)
  • RS Stock No. 254-6251
  • Mfr. Part No. 188-K2C020
Each
£16.52(exc. VAT)
  • RS Stock No. 289-1620
  • Mfr. Part No. 2CSF204568R1400
Each
£465.52(exc. VAT)
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  • Mfr. Part No. JF 6-150 M6
Each
£3.34(exc. VAT)
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  • Mfr. Part No. 2CDS274337R0378
Each
£276.86(exc. VAT)
  • RS Stock No. 125-766
  • Mfr. Part No. 174210 IKA-2/36-OT
Each
£112.86(exc. VAT)
Better World
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  • Mfr. Part No. GV4PE03N
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£618.42(exc. VAT)
Better World
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  • Mfr. Part No. 3VA6325-8KM41-2AA0
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£3,727.96(exc. VAT)
  • RS Stock No. 229-718
  • Mfr. Part No. 114739 XLSPP164
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£51.87(exc. VAT)
Better World
  • RS Stock No. 259-3184
  • Mfr. Part No. 1SDA071049R1
Each
£9,883.59(exc. VAT)
  • RS Stock No. 339-380
  • Mfr. Part No. SED100304S
Each
£371.57(exc. VAT)
  • RS Stock No. 630-856
  • Mfr. Part No. B233451Q
1 Box of 10
£7.47(exc. VAT)
  • RS Stock No. 209-6412
  • Mfr. Part No. P1065695 / BLD24V16
Each (In a Pack of 10)
£3.465(exc. VAT)
  • RS Stock No. 232-152
  • Mfr. Part No. 116897 NZM2-XHB-DA-NA
Each
£297.62(exc. VAT)
  • RS Stock No. 181-8772
  • Mfr. Part No. 100NHG00B-690
Each
£6.60(exc. VAT)
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