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

600 of 999+
  • RS Stock No. 220-0614
  • Mfr. Part No. 1492-FB3J60-L
Each (In a Pack of 2)
£123.47(exc. VAT)
  • RS Stock No. 254-6271
  • Mfr. Part No. C103MA050
Each
£133.20(exc. VAT)
  • RS Stock No. 260-7561
  • Mfr. Part No. C11E3TM063L
Each
£298.95(exc. VAT)
  • RS Stock No. 225-5941
  • Mfr. Part No. 2CCF019622R0001 S804PV-SP10 - 5 kA
Each
£367.50(exc. VAT)
  • RS Stock No. 339-675
  • Mfr. Part No. SE10C310
Each
£103.09(exc. VAT)
  • RS Stock No. 259-3384
  • Mfr. Part No. 1SDA071307R1
Each
£42,824.18(exc. VAT)
  • RS Stock No. 260-8229
  • Mfr. Part No. C63N44V570
Each
£7,542.60(exc. VAT)
  • RS Stock No. 173-7871
  • Mfr. Part No. 4404.0010
Each (In a Box of 100)
£1.466(exc. VAT)
  • RS Stock No. 216-5468
  • Mfr. Part No. LBI63FC/FCBK
Each
£38.17(exc. VAT)
  • RS Stock No. 182-1414
  • Mfr. Part No. 170M1569D
Each (In a Box of 10)
£65.701(exc. VAT)
Better World
  • RS Stock No. 238-3396
  • Mfr. Part No. A9P32732
Each
£197.00(exc. VAT)
  • RS Stock No. 204-327
  • Mfr. Part No. 2CDS271347R0217
Each
£98.15(exc. VAT)
  • RS Stock No. 203-689
  • Mfr. Part No. 2CDS382001R0014
Each
£82.61(exc. VAT)
  • RS Stock No. 647-8588P
  • Mfr. Part No. MF-R185
Each (Supplied in a Bag)
£0.244(exc. VAT)
  • RS Stock No. 178-1013
  • Mfr. Part No. S1019238 / BTIA55V2
Each (In a Pack of 10)
£6.591(exc. VAT)
Better World
  • RS Stock No. 271-9618
  • Mfr. Part No. 3VA10803ED360AA0
Each
£184.97(exc. VAT)
  • RS Stock No. 608-658
  • Mfr. Part No. 3NE8812-0MK
1 Pack of 3
£69.99(exc. VAT)
  • RS Stock No. 140-429
  • Mfr. Part No. 2CCS861001R1105
Each
£69.80(exc. VAT)
  • RS Stock No. 141-133
  • Mfr. Part No. 2CCS892001R0101
Each
£120.36(exc. VAT)
  • RS Stock No. 204-383
  • Mfr. Part No. 2CDS273061R0457
Each
£263.66(exc. VAT)
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