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.

51000 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 624-0456
  • Mfr. Part No. 278869 FAZ-C10/3
Each
£95.22(exc. VAT)
  • RS Stock No. 622-1051
  • Mfr. Part No. 5SE2310
Each (In a Pack of 10)
£1.02(exc. VAT)
  • RS Stock No. 229-180
  • Mfr. Part No. C10G8 CYLINDRICAL FUSE 10 x 38 8A GG 500V AC
1 Pack of 10
£6.85(exc. VAT)
Better World
  • RS Stock No. 124-7733
  • Mfr. Part No. 5SV3344-6KL
Each
£87.20(exc. VAT)
  • RS Stock No. 201-6933
  • Mfr. Part No. 2CSR255080R1104 DS201 C10 AC30
Each
£134.78(exc. VAT)
  • RS Stock No. 767-5052
Each (In a Pack of 10)
£0.246(exc. VAT)
  • RS Stock No. 136-0596
  • Mfr. Part No. H1017205 / FR14GR69V32
Each
£13.07(exc. VAT)
Better World
  • RS Stock No. 772-1394
  • Mfr. Part No. 5SY4340-8
Each
£88.38(exc. VAT)
  • RS Stock No. 703-8639
  • Mfr. Part No. 32NHG000B
Each
£4.21(exc. VAT)
  • RS Stock No. 144-1842
  • Mfr. Part No. 8020.5022.G
Each (In a Bag of 10)
£0.642(exc. VAT)
  • RS Stock No. 384-011
  • Mfr. Part No. 3101.0010
Each (In a Pack of 5)
£3.148(exc. VAT)
  • RS Stock No. 865-7405
  • Mfr. Part No. 0034.2522
Each (In a Pack of 10)
£0.686(exc. VAT)
  • RS Stock No. 359-3375
  • Mfr. Part No. FX0454
Each (In a Pack of 5)
£6.592(exc. VAT)
  • RS Stock No. 210-4736
  • Mfr. Part No. EUBLMC6C30A
Each
£46.41(exc. VAT)
  • RS Stock No. 207-2795
  • Mfr. Part No. 2908261
Each
£49.12(exc. VAT)
  • RS Stock No. 414-049
1 Pack of 10
£10.98(exc. VAT)
  • RS Stock No. 725-8054
  • Mfr. Part No. 0217015.MXP
Each (In a Bag of 10)
£0.338(exc. VAT)
Better World
  • RS Stock No. 209-5075
  • Mfr. Part No. 3VA1220-4EF32-0AA0
Each
£506.96(exc. VAT)
  • RS Stock No. 416-001
  • Mfr. Part No. 2212003
Each (In a Pack of 5)
£0.87(exc. VAT)
Better World
  • RS Stock No. 790-9204
  • Mfr. Part No. A9D31816
Each
£148.47(exc. VAT)
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