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. 703-8456P
  • Mfr. Part No. C22G10
Each (Supplied in a Box)
£3.353(exc. VAT)
  • RS Stock No. 825-5564
  • Mfr. Part No. P1MB1PB32
Each
£16.72(exc. VAT)
  • RS Stock No. 122-2598
  • Mfr. Part No. FX0345
Each
£9.48(exc. VAT)
  • RS Stock No. 181-8806
  • Mfr. Part No. 16NZ01
Each
£3.22(exc. VAT)
  • RS Stock No. 239-884
  • Mfr. Part No. 184254 IZMX-M16-230AD-1
Each
£1,050.17(exc. VAT)
  • RS Stock No. 647-8623
  • Mfr. Part No. MF-R600
Each (In a Pack of 10)
£0.438(exc. VAT)
  • RS Stock No. 123-281
  • Mfr. Part No. 170738 FRBMM-C10/3/003-A
Each
£149.63(exc. VAT)
Better World
  • RS Stock No. 791-3183
  • Mfr. Part No. A9F53150
Each
£32.05(exc. VAT)
Better World
  • RS Stock No. 254-6280
  • Mfr. Part No. C10B3TM080
Each
£481.18(exc. VAT)
  • RS Stock No. 261-399
  • Mfr. Part No. PXS24ACC0000 PXS24-PCH
Each
£4.74(exc. VAT)
Better World
  • RS Stock No. 181-2613
  • Mfr. Part No. DF2CN02
Each (In a Box of 10)
£8.504(exc. VAT)
  • RS Stock No. 169-9432
  • Mfr. Part No. S505-2-R
1 Bag of 1000
£169.26(exc. VAT)
Better World
  • RS Stock No. 248-3712
  • Mfr. Part No. A9XMWD20
Each
£361.06(exc. VAT)
  • RS Stock No. 282-4685
  • Mfr. Part No. 3NX1015
Each
£46.84(exc. VAT)
Better World
  • RS Stock No. 271-9738
  • Mfr. Part No. 3VA1112-6ED46-0AA0
Each
£544.25(exc. VAT)
  • RS Stock No. 184-9105
  • Mfr. Part No. DD061MS
Each
£78.16(exc. VAT)
  • RS Stock No. 180-076
1 Pack of 10
£160.74(exc. VAT)
  • RS Stock No. 414-702
  • Mfr. Part No. TIS63M100
Each
£24.16(exc. VAT)
  • RS Stock No. 266-1357
  • Mfr. Part No. 411198
Each
£534.37(exc. VAT)
  • RS Stock No. 288-7077
  • Mfr. Part No. A9F90210
Each
£197.81(exc. VAT)
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