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

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  • RS Stock No. 851-1933
  • Mfr. Part No. FWX-25A14F
Each
£17.34(exc. VAT)
  • RS Stock No. 732-0099
  • Mfr. Part No. 4 116 32
Each
£113.43(exc. VAT)
  • RS Stock No. 258-591
  • Mfr. Part No. 284420 NZMH1-4-A32
Each
£510.20(exc. VAT)
  • RS Stock No. 259-4542
  • Mfr. Part No. 1SDA072778R1
Each
£6,036.55(exc. VAT)
  • RS Stock No. 218-8820
  • Mfr. Part No. 1492-SPM3B070
Each
£54.80(exc. VAT)
  • RS Stock No. 203-872
  • Mfr. Part No. 2CDS272337R0548
Each
£137.38(exc. VAT)
  • RS Stock No. 218-1809
  • Mfr. Part No. 3VA9163-0SB20
Each
£23.17(exc. VAT)
  • RS Stock No. 277-6095
  • Mfr. Part No. 550230
Each (In a Pack of 4)
£128.003(exc. VAT)
  • RS Stock No. 608-867
  • Mfr. Part No. 3NE5318
1 Pack of 3
£654.17(exc. VAT)
  • RS Stock No. 127-392
  • Mfr. Part No. 183062 XNH2-FCE-A400-BT
Each
£614.75(exc. VAT)
  • RS Stock No. 275-0063
  • Mfr. Part No. 209-3-1-63-4-2-60-H-V
Each
£227.37(exc. VAT)
  • RS Stock No. 232-0235
  • Mfr. Part No. 1SDA066915R1 FC Cu XT3 6PCS
Each
£34.19(exc. VAT)
  • RS Stock No. 397-569
  • Mfr. Part No. 3NA6810
Each (In a Pack of 3)
£17.807(exc. VAT)
  • RS Stock No. 127-390
  • Mfr. Part No. 183060 XNH2-FCL-A400-BT
Each
£351.41(exc. VAT)
  • RS Stock No. 729-2732
  • Mfr. Part No. 1616-21-15A
Each
£11.02(exc. VAT)
Better World
  • RS Stock No. 210-3412
  • Mfr. Part No. 5SY6213-6
Each
£46.06(exc. VAT)
  • RS Stock No. 167-7106
  • Mfr. Part No. 70103440
Each (In a Pack of 10)
£1.326(exc. VAT)
  • RS Stock No. 769-0098
  • Mfr. Part No. 0313008.HXP
Each (In a Pack of 5)
£1.216(exc. VAT)
Better World
  • RS Stock No. 236-6603
  • Mfr. Part No. 1SDA068118R1 XT4N 160 MA 100 FF
Each
£411.17(exc. VAT)
  • RS Stock No. 250-4097
  • Mfr. Part No. 1SDA054365R1
Each
£2,417.03(exc. VAT)
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