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

554 of 999+
  • RS Stock No. 244-797
  • Mfr. Part No. 141856 XNNCD60
1 Pack of 10
£112.13(exc. VAT)
  • RS Stock No. 177-8011
1 Box of 1000
£242.71(exc. VAT)
  • RS Stock No. 121-026
  • Mfr. Part No. 168282 FRBDM-C6/1N/01-G/A
Each
£141.08(exc. VAT)
  • RS Stock No. 225-6081
  • Mfr. Part No. 2CSB204101R1250 DDA204 A-25/0.03
Each
£118.88(exc. VAT)
  • RS Stock No. 232-0239
  • Mfr. Part No. 1SDA067069R1 XT2N 160 Ekip LSI 63A FF
Each
£846.49(exc. VAT)
  • RS Stock No. 218-8911
  • Mfr. Part No. 1694-PM13-CL2
Each (In a Pack of 4)
£55.72(exc. VAT)
  • RS Stock No. 225-6123
  • Mfr. Part No. 2CSF204023R4250 F204 AC-25/0.5
Each
£89.77(exc. VAT)
  • RS Stock No. 610-627
  • Mfr. Part No. 5SY4663-5
Each
£387.48(exc. VAT)
  • RS Stock No. 272-7214
  • Mfr. Part No. 106135 PKZ0-XHM
Each
£58.58(exc. VAT)
Better World
  • RS Stock No. 211-2437
  • Mfr. Part No. M9F43104
Each
£107.78(exc. VAT)
  • RS Stock No. 147-934
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Each
£925.56(exc. VAT)
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Each
£122.87(exc. VAT)
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  • Mfr. Part No. A9D07220
Each
£514.22(exc. VAT)
  • RS Stock No. 260-9540
  • Mfr. Part No. C10R42D100
Each
£1,450.19(exc. VAT)
  • RS Stock No. 738-2784P
  • Mfr. Part No. FHAC0001ZXJ
Each (Supplied in a Box)
£4.47(exc. VAT)
  • RS Stock No. 248-519
  • Mfr. Part No. 002612 AE/I43E/T
Each
£351.19(exc. VAT)
  • RS Stock No. 418-9494
  • Mfr. Part No. 70-059-61/0.25A
Each (In a Pack of 10)
£0.458(exc. VAT)
  • RS Stock No. 801-6937
  • Mfr. Part No. 0903030
Each
£104.44(exc. VAT)
Better World
  • RS Stock No. 236-7546
  • Mfr. Part No. 1SDA067893R1 XT2H 160 Ekip LS/I 100A FF
Each
£731.42(exc. VAT)
  • RS Stock No. 183-3702
  • Mfr. Part No. 2CSR245041R1204
Each
£96.32(exc. VAT)
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