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

7 of 999+
  • RS Stock No. 787-4303
  • Mfr. Part No. 0314012.HXP
Each (In a Pack of 5)
£0.516(exc. VAT)
  • RS Stock No. 703-8368
  • Mfr. Part No. C10G1
1 Pack of 10
£10.78(exc. VAT)
Better World
  • RS Stock No. 231-9654
  • Mfr. Part No. 2CDS212001R0034 SH202-C 3
1 Box of 1
£41.35(exc. VAT)
  • RS Stock No. 247-4201
  • Mfr. Part No. 50-124-06/40A
Each
£17.60(exc. VAT)
  • RS Stock No. 849-6531
  • Mfr. Part No. EUC2P2C
Each
£12.79(exc. VAT)
  • RS Stock No. 226-0831
  • Mfr. Part No. 8GK9733-0KK10
Each
£36.83(exc. VAT)
  • RS Stock No. 797-6046
  • Mfr. Part No. SF 070 R
Each (In a Pack of 10)
£0.829(exc. VAT)
Better World
  • RS Stock No. 772-1240
  • Mfr. Part No. 5SY4104-8
Each
£22.02(exc. VAT)
Better World
  • RS Stock No. 850-8599
  • Mfr. Part No. EZ9F16106
Each
£4.03(exc. VAT)
  • RS Stock No. 156-8686
  • Mfr. Part No. DD125
Each
£22.51(exc. VAT)
  • RS Stock No. 188-1209
  • Mfr. Part No. 29370
Each
£25.78(exc. VAT)
Better World
  • RS Stock No. 746-7740
  • Mfr. Part No. 2CDS253001R0024 S203-C2
Each
£67.79(exc. VAT)
Better World
  • RS Stock No. 850-8593
  • Mfr. Part No. EZ9F16110
Each
£4.03(exc. VAT)
  • RS Stock No. 244-967
  • Mfr. Part No. SE125A6
Each
£111.96(exc. VAT)
Better World
  • RS Stock No. 535-4100
  • Mfr. Part No. 2CDS271001R0024 S201M-C2
Each
£21.07(exc. VAT)
  • RS Stock No. 563-744
Each (In a Pack of 10)
£0.447(exc. VAT)
  • RS Stock No. 703-8406
  • Mfr. Part No. C10G32
1 Pack of 10
£11.01(exc. VAT)
Better World
  • RS Stock No. 790-9193
  • Mfr. Part No. A9D31806
Each
£148.47(exc. VAT)
  • RS Stock No. 229-268
  • Mfr. Part No. C10G6 CYLINDRICAL FUSE 10 x 38 6A GG 500V AC
1 Pack of 10
£6.85(exc. VAT)
  • RS Stock No. 668-6067
1 Pack of 10
£5.18(exc. VAT)
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