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.

50914 Products showing for Fuses & Circuit Breakers

12 of 999+
  • RS Stock No. 787-4397
  • Mfr. Part No. 0298100.ZXEH
Each
£4.94(exc. VAT)
  • RS Stock No. 535-4166
  • Mfr. Part No. 2CDS271001R0204 S201M-C20
Each
£18.34(exc. VAT)
  • RS Stock No. 255-175
  • Mfr. Part No. 260182 NZM3-XTVDVR
Each
£198.13(exc. VAT)
  • RS Stock No. 414-027
Each (In a Pack of 10)
£1.098(exc. VAT)
  • RS Stock No. 563-403
1 Pack of 10
£2.82(exc. VAT)
  • RS Stock No. 180-6098
  • Mfr. Part No. 0 019 02
Each
£64.27(exc. VAT)
  • RS Stock No. 156-8608
  • Mfr. Part No. AAO32M50
Each (In a Pack of 5)
£5.936(exc. VAT)
  • RS Stock No. 798-2202
  • Mfr. Part No. EUB116B
Each
£4.00(exc. VAT)
  • RS Stock No. 413-210
Each (In a Pack of 10)
£1.02(exc. VAT)
  • RS Stock No. 563-699
Each (In a Pack of 10)
£0.397(exc. VAT)
  • RS Stock No. 512-6006
  • Mfr. Part No. FX0419
Each
£14.43(exc. VAT)
  • RS Stock No. 911-3394
Each (In a Pack of 10)
£0.357(exc. VAT)
Better World
  • RS Stock No. 746-7646
  • Mfr. Part No. 2CDS251001R0014 S201-C1
Each
£13.11(exc. VAT)
  • RS Stock No. 563-334
Each (In a Pack of 10)
£0.282(exc. VAT)
  • RS Stock No. 849-6459
  • Mfr. Part No. EUC1P1B
Each
£7.91(exc. VAT)
Better World
  • RS Stock No. 791-3565
  • Mfr. Part No. A9F55310
Each
£113.61(exc. VAT)
  • RS Stock No. 265-0186
Each
£18.87(exc. VAT)
  • RS Stock No. 269-3816
  • Mfr. Part No. 3101.0320
Each
£2.65(exc. VAT)
  • RS Stock No. 240-6382
  • Mfr. Part No. CCPBR0606AB
Each
£23.70(exc. VAT)
  • RS Stock No. 911-3427
Each (In a Pack of 10)
£0.357(exc. VAT)
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