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.

34912 Products showing for Fuses & Circuit Breakers

58 of 999+
  • RS Stock No. 282-7020
  • Mfr. Part No. 174196 IKA-1/8-ST
Each
$141.33(exc. VAT)
  • RS Stock No. 173-9671
  • Mfr. Part No. 7010.7070.13
Each (In a Bag of 100)
$2.654(exc. VAT)
  • RS Stock No. 230-6654
  • Mfr. Part No. A9F44202
Each
$75.32(exc. VAT)
  • RS Stock No. 192-0893
  • Mfr. Part No. 1SDA066466R1
Each
$1,196.58(exc. VAT)
  • RS Stock No. 188-6625
  • Mfr. Part No. L084006
Each (In a Pack of 10)
$8.82(exc. VAT)
  • RS Stock No. 272-7216
  • Mfr. Part No. 106138 PKZ0-XRH62
Each
$181.51(exc. VAT)
Better World
  • RS Stock No. 188-4750
  • Mfr. Part No. GV5P150H
Each
$1,424.21(exc. VAT)
  • RS Stock No. 101-801
Each
$121.79(exc. VAT)
  • RS Stock No. 270-3069
  • Mfr. Part No. K227962
Each
$88.98(exc. VAT)
  • RS Stock No. 231-304
  • Mfr. Part No. 107519 NZMC2-A300
Each
$3,701.39(exc. VAT)
  • RS Stock No. 548-9199
  • Mfr. Part No. 02980900TXN
Each
$34.93(exc. VAT)
  • RS Stock No. 731-9437
  • Mfr. Part No. 4 049 38
Each
$59.03(exc. VAT)
Better World
  • RS Stock No. 772-1537
  • Mfr. Part No. A9N61535
Each
$178.74(exc. VAT)
  • RS Stock No. 273-1129
  • Mfr. Part No. CDCB132
Each
$32.32(exc. VAT)
Better World
  • RS Stock No. 209-4920
  • Mfr. Part No. 3VA1116-4EF32-0AA0
Each
$1,857.98(exc. VAT)
  • RS Stock No. 767-5061
Each (In a Pack of 10)
$0.691(exc. VAT)
  • RS Stock No. 209-9298
Each (In a Pack of 10)
$2.909(exc. VAT)
  • RS Stock No. 563-481
Each (In a Pack of 10)
$0.876(exc. VAT)
  • RS Stock No. 276-8970
  • Mfr. Part No. R9PFD616
Each
$78.76(exc. VAT)
  • RS Stock No. 263-146
  • Mfr. Part No. CHCC3DIU
1 Pack of 4
$292.27(exc. VAT)
Results per page