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

551 of 999+
  • RS Stock No. 259-001
  • Mfr. Part No. 278746 FAZ-C1,5/2
Each
£109.69(exc. VAT)
  • RS Stock No. 219-6248P
  • Mfr. Part No. 0154003.DRT
Each (Supplied on a Reel)
£3.829(exc. VAT)
  • RS Stock No. 232-0242
  • Mfr. Part No. 1SDA067130R1 RC Sel XT3 F
Each
£1,048.18(exc. VAT)
  • RS Stock No. 418-653
  • Mfr. Part No. RS63LOCK
Each (In a Pack of 3)
£13.273(exc. VAT)
  • RS Stock No. 565-504
  • Mfr. Part No. 0287015.PXS
Each
£22.85(exc. VAT)
  • RS Stock No. 140-680
  • Mfr. Part No. 2CCS862001R0135
Each
£139.61(exc. VAT)
  • RS Stock No. 263-900
  • Mfr. Part No. 3VA9673-0JC43
1 Kit
£272.78(exc. VAT)
  • RS Stock No. 260-3026
  • Mfr. Part No. 3-132-874
Each (On a Reel of 320)
£0.652(exc. VAT)
  • RS Stock No. 140-500
  • Mfr. Part No. 2CCS893001R0501
Each
£203.24(exc. VAT)
  • RS Stock No. 244-797
  • Mfr. Part No. 141856 XNNCD60
1 Pack of 10
£112.13(exc. VAT)
  • RS Stock No. 132-954
  • Mfr. Part No. 183965 IZMX-CAS404-3200-SEC-1
Each
£5,601.96(exc. VAT)
  • RS Stock No. 272-2316
  • Mfr. Part No. 260362 CI-K2H-PKZ0
Each
£16.59(exc. VAT)
  • RS Stock No. 852-7070
  • Mfr. Part No. MDA-3-4-R
Each
£3.83(exc. VAT)
  • RS Stock No. 246-845
  • Mfr. Part No. 191581 NZMN3-MX350-AVE
Each
£2,315.48(exc. VAT)
  • RS Stock No. 221-3646
1 Bag of 10
£184.64(exc. VAT)
  • RS Stock No. 260-9468
  • Mfr. Part No. C10H3TM080
Each
£684.96(exc. VAT)
  • RS Stock No. 147-898
  • Mfr. Part No. 3VA5212-7EC61-0AA0
Each
£716.04(exc. VAT)
  • RS Stock No. 257-419
  • Mfr. Part No. 3VA5325-7EF41-2AA0
Each
£1,804.26(exc. VAT)
Better World
  • RS Stock No. 209-5991
  • Mfr. Part No. 5SL4563-7
Each
£126.84(exc. VAT)
  • RS Stock No. 414-724
  • Mfr. Part No. GSA10
Each (In a Pack of 5)
£20.472(exc. VAT)
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