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. 429-281
  • Mfr. Part No. NHGL36060U31X
Each
£1,858.85(exc. VAT)
  • RS Stock No. 136-0593
  • Mfr. Part No. Z1014575 / FR10GR69V8
Each
£6.46(exc. VAT)
  • RS Stock No. 284-5366
  • Mfr. Part No. 0034.6618
Each (In a Pack of 10)
£0.354(exc. VAT)
  • RS Stock No. 210-1772
  • Mfr. Part No. 8US1921-2BC00
Each (In a Pack of 50)
£6.515(exc. VAT)
  • RS Stock No. 259-3434
  • Mfr. Part No. 1SDA071377R1
Each
£7,070.99(exc. VAT)
  • RS Stock No. 210-3510
  • Mfr. Part No. 3VA9111-0WK40
Each
£14.85(exc. VAT)
  • RS Stock No. 230-3004
  • Mfr. Part No. 3NE1435-2
Each (In a Pack of 3)
£398.413(exc. VAT)
  • RS Stock No. 161-878
  • Mfr. Part No. 3VA9157-0LF10
Each
£47.11(exc. VAT)
  • RS Stock No. 252-5308
  • Mfr. Part No. 170M6814
Each
£150.40(exc. VAT)
  • RS Stock No. 244-793
  • Mfr. Part No. 141842 XNAE10-42
1 Pack of 20
£53.69(exc. VAT)
  • RS Stock No. 236-8717
  • Mfr. Part No. 1694-PMD244-CL2
Each
£67.85(exc. VAT)
Better World
  • RS Stock No. 191-6106
  • Mfr. Part No. A9P24606
Each
£95.80(exc. VAT)
  • RS Stock No. 277-0780
  • Mfr. Part No. 3WA9111-0AM23
Each
£323.86(exc. VAT)
  • RS Stock No. 339-775
  • Mfr. Part No. A9R24480
Each
£329.27(exc. VAT)
  • RS Stock No. 276-5668
  • Mfr. Part No. P1RD4P25A030
Each
£227.93(exc. VAT)
  • RS Stock No. 125-646
  • Mfr. Part No. 174190 IKA-1/12-ST-UV
Each
£88.07(exc. VAT)
  • RS Stock No. 738-2797P
  • Mfr. Part No. 0218002.MXP
Each (Supplied in a Bag)
£0.854(exc. VAT)
  • RS Stock No. 738-3065
  • Mfr. Part No. 0251.375MRT1L
Each (In a Pack of 10)
£1.113(exc. VAT)
Better World
  • RS Stock No. 249-388
  • Mfr. Part No. 3VA6460-6HN41-0AA0
Each
£2,879.32(exc. VAT)
Better World
  • RS Stock No. 202-7230
  • Mfr. Part No. 5SL6325-7
Each
£65.90(exc. VAT)
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