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

23 of 999+
  • RS Stock No. 611-0686
Each (In a Pack of 10)
£0.817(exc. VAT)
  • RS Stock No. 521-2775
Each
£33.23(exc. VAT)
  • RS Stock No. 156-9083
  • Mfr. Part No. 250FM
Each
£64.41(exc. VAT)
  • RS Stock No. 849-5746
  • Mfr. Part No. GMC-600-R
Each
£1.22(exc. VAT)
  • RS Stock No. 563-750
Each (In a Pack of 10)
£0.377(exc. VAT)
  • RS Stock No. 537-1391
1 Pack of 10
£3.18(exc. VAT)
Better World
  • RS Stock No. 791-3515
  • Mfr. Part No. A9F55204
Each
£94.90(exc. VAT)
  • RS Stock No. 414-443
Each (In a Pack of 10)
£1.02(exc. VAT)
  • RS Stock No. 490-107
  • Mfr. Part No. 236426 PXL-C16/3
Each
£30.10(exc. VAT)
  • RS Stock No. 188-6956
  • Mfr. Part No. D213098
1 Pack of 10
£13.49(exc. VAT)
  • RS Stock No. 202-7200
  • Mfr. Part No. 5ST3730
Each
£7.42(exc. VAT)
  • RS Stock No. 563-766
Each (In a Pack of 10)
£0.377(exc. VAT)
  • RS Stock No. 240-6401
  • Mfr. Part No. CCPBR1032AB
Each
£34.64(exc. VAT)
  • RS Stock No. 184-9037
  • Mfr. Part No. CPB1020C
Each
£4.99(exc. VAT)
Better World
  • RS Stock No. 187-3284
  • Mfr. Part No. 5SV1316-7KK02
Each
£140.63(exc. VAT)
Better World
  • RS Stock No. 790-8724
  • Mfr. Part No. A9F55420
Each
£192.46(exc. VAT)
  • RS Stock No. 247-2892
  • Mfr. Part No. S216653
1 Box of 10
£35.69(exc. VAT)
  • RS Stock No. 414-077
  • Mfr. Part No. NSD25
Each (In a Pack of 5)
£3.434(exc. VAT)
  • RS Stock No. 668-6023
1 Pack of 10
£3.21(exc. VAT)
  • RS Stock No. 272-7480
  • Mfr. Part No. LV432603T
Each
£243.00(exc. VAT)
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