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.

51015 Products showing for Fuses & Circuit Breakers

605 of 999+
  • RS Stock No. 231-9364
  • Mfr. Part No. 1SDA104925R1 YO XT5-XT6 24...60 Vac/dc
Each
£88.35(exc. VAT)
  • RS Stock No. 257-606
  • Mfr. Part No. 3VA5580-6GC42-2AA0
Each
£3,731.55(exc. VAT)
  • RS Stock No. 249-755
  • Mfr. Part No. 3VA6560-5HL32-2AA0
Each
£2,664.59(exc. VAT)
  • RS Stock No. 259-714
  • Mfr. Part No. 278614 FAZ-S25/1
Each
£36.73(exc. VAT)
  • RS Stock No. 210-6898
  • Mfr. Part No. 3NA3365-6
Each (In a Pack of 3)
£112.357(exc. VAT)
  • RS Stock No. 246-2692
  • Mfr. Part No. 2CCS573103R8557
Each
£194.41(exc. VAT)
  • RS Stock No. 182-1488
  • Mfr. Part No. TI600
Each
£17.57(exc. VAT)
  • RS Stock No. 755-2965
  • Mfr. Part No. 3RV2917-5CA00
Each
£3.88(exc. VAT)
  • RS Stock No. 225-6127
  • Mfr. Part No. 2CSF204101R1900 F204 A-100/0,03
Each
£329.48(exc. VAT)
  • RS Stock No. 247-412
  • Mfr. Part No. 150685 DILM95-XSPR130
1 Pack of 10
£118.32(exc. VAT)
  • RS Stock No. 212-079
  • Mfr. Part No. M9F12225
Each
£102.49(exc. VAT)
Better World
  • RS Stock No. 254-6291
  • Mfr. Part No. C10F6TM100
Each
£674.51(exc. VAT)
Better World
  • RS Stock No. 210-9375
  • Mfr. Part No. 3VA9324-0RL30
Each
£1,318.49(exc. VAT)
  • RS Stock No. 252-931
  • Mfr. Part No. 211800 AZ-2-C80
Each
£242.20(exc. VAT)
  • RS Stock No. 253-662
  • Mfr. Part No. 268993 Z-SLS/B-63A
Each
£50.09(exc. VAT)
  • RS Stock No. 140-551
  • Mfr. Part No. 2CCS400900R0091
Each
£29.24(exc. VAT)
Better World
  • RS Stock No. 271-9387
  • Mfr. Part No. 3VA1163-4ED46-0AA0
Each
£248.41(exc. VAT)
  • RS Stock No. 201-6968
  • Mfr. Part No. 2CSR275180R0104 DS201 M C10 A10
Each
£128.19(exc. VAT)
Better World
  • RS Stock No. 201-2242
  • Mfr. Part No. A9DC7616
Each
£173.74(exc. VAT)
  • RS Stock No. 341-114
  • Mfr. Part No. A9V81463
Each
£909.35(exc. VAT)
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