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. 454-8124
  • Mfr. Part No. 259084 NZMN1-A80
Each
£430.53(exc. VAT)
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  • Mfr. Part No. ESX10-100-DC24V-16A-E
Each
£54.21(exc. VAT)
  • RS Stock No. 191-4549
  • Mfr. Part No. SF-2410FP0062T-2
Each (On a Tape of 10)
£4.11(exc. VAT)
  • RS Stock No. 247-1898
  • Mfr. Part No. 48312
Each
£16,147.21(exc. VAT)
Better World
  • RS Stock No. 211-9672
  • Mfr. Part No. 5SV3612-6KL
Each
£89.00(exc. VAT)
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  • Mfr. Part No. 5ST3624-4
Each
£18.29(exc. VAT)
  • RS Stock No. 458-8510
  • Mfr. Part No. KTK-2
Each (In a Pack of 5)
£13.024(exc. VAT)
  • RS Stock No. 246-2550
  • Mfr. Part No. 2CCS571103R8557
Each
£115.34(exc. VAT)
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  • Mfr. Part No. 278892 FAZ-D10/3
Each
£99.98(exc. VAT)
  • RS Stock No. 167-4470
  • Mfr. Part No. MF-PSMF010X-2
Each (On a Reel of 3000)
£0.254(exc. VAT)
  • RS Stock No. 127-421
  • Mfr. Part No. 180426 FRCDM-63/4/003-G/BFQ/60HZ
Each
£1,023.44(exc. VAT)
  • RS Stock No. 275-0233
  • Mfr. Part No. IELH11-1-62-40.0-AC-01-V
Each
£102.87(exc. VAT)
  • RS Stock No. 767-5109
Each (In a Pack of 10)
£0.128(exc. VAT)
  • RS Stock No. 173-9675
  • Mfr. Part No. 3402.0004.11
Each (In a Bag of 100)
£0.46(exc. VAT)
Better World
  • RS Stock No. 211-0484
  • Mfr. Part No. KSA630EV4254
Each
£2,239.81(exc. VAT)
  • RS Stock No. 339-647
  • Mfr. Part No. SED100102
Each
£186.99(exc. VAT)
  • RS Stock No. 610-692
  • Mfr. Part No. 5SY7508-8
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£80.41(exc. VAT)
  • RS Stock No. 255-638
  • Mfr. Part No. 266739 NZM-XSTK
Each
£12.84(exc. VAT)
  • RS Stock No. 541-3170
  • Mfr. Part No. 0473002.HAT1L
Each (In a Pack of 10)
£1.613(exc. VAT)
  • RS Stock No. 911-3372
Each (In a Pack of 10)
£0.357(exc. VAT)
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