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. 182-1448
  • Mfr. Part No. 80LR85
Each (In a Box of 20)
£8.484(exc. VAT)
  • RS Stock No. 276-8972
  • Mfr. Part No. R9PRA263
Each
£73.52(exc. VAT)
Better World
  • RS Stock No. 219-9135
  • Mfr. Part No. M9F22363
Each
£145.08(exc. VAT)
  • RS Stock No. 169-9441
  • Mfr. Part No. S506-100-R
1 Bag of 1000
£325.80(exc. VAT)
  • RS Stock No. 270-3096
  • Mfr. Part No. Q090542
Each (In a Box of 10)
£0.444(exc. VAT)
  • RS Stock No. 261-682
  • Mfr. Part No. TFRN01-SB
1 Pack of 5
£71.18(exc. VAT)
  • RS Stock No. 825-5920
  • Mfr. Part No. P1MB4PB20
Each
£113.04(exc. VAT)
  • RS Stock No. 173-9699
  • Mfr. Part No. 0031.1624
Each (In a Box of 50)
£4.08(exc. VAT)
  • RS Stock No. 517-6988P
  • Mfr. Part No. RGEF1100
Each (Supplied in a Bag)
£0.96(exc. VAT)
  • RS Stock No. 628-8010
  • Mfr. Part No. 265722 NZMN1-M100
1 Box of 1
£430.53(exc. VAT)
  • RS Stock No. 180-6112
  • Mfr. Part No. 0 130 16
Each (In a Box of 10)
£1.866(exc. VAT)
  • RS Stock No. 144-4849
  • Mfr. Part No. BDC825
Each
£265.08(exc. VAT)
  • RS Stock No. 260-8155
  • Mfr. Part No. C40V32D400
Each
£3,163.64(exc. VAT)
  • RS Stock No. 328-470
  • Mfr. Part No. 5ST3795-4
Each
£44.52(exc. VAT)
Better World
  • RS Stock No. 237-3246
  • Mfr. Part No. 2CDS253001R0527
Each
£116.16(exc. VAT)
  • RS Stock No. 209-9403
  • Mfr. Part No. 3-122-714
Each (In a Pack of 100)
£3.135(exc. VAT)
  • RS Stock No. 254-4211
  • Mfr. Part No. PF-MB1-50
Each (In a Box of 10)
£38.374(exc. VAT)
  • RS Stock No. 221-5612
  • Mfr. Part No. 3-128-218
Each
£16.16(exc. VAT)
Better World
  • RS Stock No. 209-6814
  • Mfr. Part No. 3VA1140-4ED32-0AA0
Each
£175.97(exc. VAT)
  • RS Stock No. 220-095
  • Mfr. Part No. 5SL3020-7KL
Each
£18.97(exc. VAT)
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