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

606 of 999+
  • RS Stock No. 230-0965
  • Mfr. Part No. 239076 FAZ6-C25/1N
Each
£17.74(exc. VAT)
  • RS Stock No. 225-6092
  • Mfr. Part No. 2CSF202001R2900 F202 AC-100/0.1
Each
£172.36(exc. VAT)
  • RS Stock No. 249-877
  • Mfr. Part No. 3VA6560-5HN46-0AA0
Each
£3,058.04(exc. VAT)
  • RS Stock No. 731-9437
  • Mfr. Part No. 4 049 38
Each
£21.33(exc. VAT)
  • RS Stock No. 246-2415
  • Mfr. Part No. 2CCG001758R0001
Each
£413.50(exc. VAT)
Better World
  • RS Stock No. 131-961
  • Mfr. Part No. 2CDS272001R0254 S202M-C25
Each
£52.80(exc. VAT)
  • RS Stock No. 599-741
  • Mfr. Part No. CDB763F
Each
£1,597.89(exc. VAT)
Better World
  • RS Stock No. 178-8058
  • Mfr. Part No. LV426103
Each
£219.67(exc. VAT)
  • RS Stock No. 125-093
  • Mfr. Part No. 178825 KLV-24HWS-SF
Each
£132.53(exc. VAT)
  • RS Stock No. 231-9335
  • Mfr. Part No. 1SDA100389R1 XT5N630 TMA630-6300 4pFF N
Each
£1,634.27(exc. VAT)
  • RS Stock No. 876-7833
  • Mfr. Part No. 0751.0062
1 Pack of 1000
£81.61(exc. VAT)
Better World
  • RS Stock No. 270-034
  • Mfr. Part No. 3VA6130-1MS31-0AA0
Each
£427.34(exc. VAT)
  • RS Stock No. 266-3131
  • Mfr. Part No. 0 143 04
1 Box of 10
£31.34(exc. VAT)
  • RS Stock No. 192-0817
  • Mfr. Part No. 1SDA068183R1
Each
£176.77(exc. VAT)
  • RS Stock No. 630-851
  • Mfr. Part No. A233450Q
1 Box of 10
£7.47(exc. VAT)
  • RS Stock No. 178-257
  • Mfr. Part No. 2CCF544110E0250 - F404A-25/0.03, 2CC
Each
£144.42(exc. VAT)
  • RS Stock No. 200-105
  • Mfr. Part No. 2CDS384001R0505
Each
£183.60(exc. VAT)
  • RS Stock No. 260-7787
  • Mfr. Part No. C16H42D160
Each
£1,543.18(exc. VAT)
  • RS Stock No. 259-4542
  • Mfr. Part No. 1SDA072778R1
Each
£6,036.55(exc. VAT)
  • RS Stock No. 227-0984
  • Mfr. Part No. 0031.1613
Each (In a Pack of 100)
£3.464(exc. VAT)
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