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.

50907 Products showing for Fuses & Circuit Breakers

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  • RS Stock No. 231-9719
  • Mfr. Part No. 2CDS271337R0457 SU201M-K15
1 Box of 1
£42.80(exc. VAT)
  • RS Stock No. 539-3745
  • Mfr. Part No. 4404.0004
Each
£2.97(exc. VAT)
  • RS Stock No. 774-0020
Each
£8.45(exc. VAT)
Better World
  • RS Stock No. 241-4454
  • Mfr. Part No. 5SV3747-5
Each
£1,374.54(exc. VAT)
  • RS Stock No. 537-1228
  • Mfr. Part No. S500-800-R
Each (In a Pack of 10)
£0.279(exc. VAT)
  • RS Stock No. 253-604
  • Mfr. Part No. 265912 NZMN4-4-AE1000
Each
£6,231.29(exc. VAT)
  • RS Stock No. 272-2335
  • Mfr. Part No. 265363 CI-K2-PKZ0-NA
Each
£16.59(exc. VAT)
  • RS Stock No. 259-374
  • Mfr. Part No. 271134 NZMH2-VEF225-NA
Each
£2,229.59(exc. VAT)
  • RS Stock No. 272-2326
  • Mfr. Part No. 262683 CI-K2-PKZ0-NA-GRV
Each
£25.64(exc. VAT)
  • RS Stock No. 240-912
  • Mfr. Part No. 191384 NZMH3-4-VX630-T-AVE
Each
£4,657.31(exc. VAT)
Better World
  • RS Stock No. 260-636
  • Mfr. Part No. 3VA6325-7JP41-0AA0
Each
£2,720.19(exc. VAT)
  • RS Stock No. 259-4607
  • Mfr. Part No. 1SDA072875R1
Each
£5,409.80(exc. VAT)
  • RS Stock No. 263-601
  • Mfr. Part No. 3VA9144-0SB20
Each
£37.05(exc. VAT)
  • RS Stock No. 259-9608
  • Mfr. Part No. 1SCA022787R5190
Each
£3.37(exc. VAT)
  • RS Stock No. 703-8276
  • Mfr. Part No. PV-15A10-T
Each
£7.83(exc. VAT)
  • RS Stock No. 218-8553
  • Mfr. Part No. 1492-D2C080
Each
£86.03(exc. VAT)
  • RS Stock No. 188-1619
  • Mfr. Part No. FB01F2P
Each
£11.36(exc. VAT)
  • RS Stock No. 703-8484P
  • Mfr. Part No. C22G125
Each (Supplied in a Box)
£3.966(exc. VAT)
  • RS Stock No. 211-9580
  • Mfr. Part No. 5SM2626-6
Each
£206.48(exc. VAT)
  • RS Stock No. 848-3804
  • Mfr. Part No. GDB-500MA
Each
£5.24(exc. VAT)
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