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.

50594 Products showing for Fuses & Circuit Breakers

730 of 999+
  • RS Stock No. 335-096
  • Mfr. Part No. BGF36060
Each
£365.45
  • RS Stock No. 254-451
  • Mfr. Part No. 259118 NZMH3-AE630
Each
£2,857.99
  • RS Stock No. 229-859
  • Mfr. Part No. 113244 NZMN2-A160-SVE
Each
£959.18
  • RS Stock No. 125-1431
  • Mfr. Part No. 1492-SPM2B050
Each
£43.32
  • RS Stock No. 254-949
  • Mfr. Part No. 236719 PXL-C32/2-DC
Each
£162.41
Better World
  • RS Stock No. 209-4876
  • Mfr. Part No. 3VA1112-3EF46-0AA0
Each
£492.40
  • RS Stock No. 610-304
  • Mfr. Part No. 5SY4345-7
Each
£215.82
  • RS Stock No. 490-292
  • Mfr. Part No. 236404 PXL-B40/3
Each
£76.77
  • RS Stock No. 466-546
  • Mfr. Part No. A9XPH318
1 Pack of 5
£245.45
  • RS Stock No. 210-4730
  • Mfr. Part No. EUBLMC20B30A
Each
£57.18
  • RS Stock No. 541-4268
  • Mfr. Part No. 0217.080MXP
Each (In a Pack of 10)
£1.024
Better World
  • RS Stock No. 219-9241
  • Mfr. Part No. A9F92206
Each
£387.36
Better World
  • RS Stock No. 211-2509
  • Mfr. Part No. A9F95306
Each
£293.92
  • RS Stock No. 246-139
  • Mfr. Part No. 132766 FAZ-B32/2-RT
Each
£112.24
  • RS Stock No. 664-324
  • Mfr. Part No. 5SY8432-7
Each
£254.16
  • RS Stock No. 260-7610
  • Mfr. Part No. C11F4TM080B
Each
£555.76
  • RS Stock No. 266-1370
  • Mfr. Part No. 412299
Each
£144.56
  • RS Stock No. 817-1668
  • Mfr. Part No. MF-MSMF110/24X-2
Each (In a Pack of 10)
£0.291
  • RS Stock No. 254-637
  • Mfr. Part No. 236685 PXL-C10-DC
Each
£60.97
  • RS Stock No. 178-263
  • Mfr. Part No. 2CSF502110R1250
Each
£121.75
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