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

586 of 999+
  • RS Stock No. 213-2215
  • Mfr. Part No. 140MP-A-SNKJ
Each
£36.38(exc. VAT)
  • RS Stock No. 174-0216
  • Mfr. Part No. 0298040.ZXB
Each (In a Box of 280)
£4.953(exc. VAT)
  • RS Stock No. 182-1435
  • Mfr. Part No. 170M1562D
Each (In a Box of 10)
£56.941(exc. VAT)
Better World
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  • Mfr. Part No. C10F6TM100
Each
£674.51(exc. VAT)
Better World
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  • Mfr. Part No. C10F32D040
Each
£659.15(exc. VAT)
  • RS Stock No. 339-778
  • Mfr. Part No. BDL16020
Each
£205.04(exc. VAT)
  • RS Stock No. 263-619
  • Mfr. Part No. 3VA9673-0QA00
1 Kit
£71.99(exc. VAT)
  • RS Stock No. 204-297
  • Mfr. Part No. 2CDS384001R0578
Each
£270.58(exc. VAT)
Better World
  • RS Stock No. 225-5871
  • Mfr. Part No. 1SDA070765R1 E1.2N 800 Ekip Touch LSI 3
Each
£4,663.22(exc. VAT)
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  • Mfr. Part No. C11E3TM016L
Each
£298.95(exc. VAT)
  • RS Stock No. 200-729
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Each
£32.23(exc. VAT)
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Each
£496.60(exc. VAT)
  • RS Stock No. 275-0324
  • Mfr. Part No. IULNK1-1-51-10.0
1 Box of 5
£305.53(exc. VAT)
  • RS Stock No. 266-744
  • Mfr. Part No. 3VW8116-7BA01
Each
£1,389.91(exc. VAT)
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  • Mfr. Part No. 550400
Each
£86.48(exc. VAT)
  • RS Stock No. 236-7283
  • Mfr. Part No. 1SDA067415R1 XT1N 160 TMD 80A FF
Each
£232.22(exc. VAT)
Better World
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  • Mfr. Part No. 1SDA067976R1 XT2V 160 Ekip I 10A FF
Each
£779.05(exc. VAT)
Better World
  • RS Stock No. 155-907
  • Mfr. Part No. 3VA2440-5JP32-0AA0
Each
£2,040.45(exc. VAT)
  • RS Stock No. 144-4966
  • Mfr. Part No. NEN232
Each
£114.65(exc. VAT)
Better World
  • RS Stock No. 124-3211
  • Mfr. Part No. 5SY4463-7
Each
£149.04(exc. VAT)
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