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

40 of 999+
  • RS Stock No. 521-2860
Each (In a Pack of 5)
$7.852(exc. GST)
  • RS Stock No. 769-0085
  • Mfr. Part No. 0216002.TXP
Each (In a Pack of 10)
$1.944(exc. GST)
  • RS Stock No. 435-504
  • Mfr. Part No. 2CCG001232R0001
Each
$782.55(exc. GST)
  • RS Stock No. 911-3556
Each (In a Pack of 10)
$0.49(exc. GST)
  • RS Stock No. 765-2973
  • Mfr. Part No. HTC-15M
Each (In a Pack of 5)
$4.522(exc. GST)
Better World
  • RS Stock No. 746-7731
  • Mfr. Part No. 2CDS252001R0404 S202-C40
Each
$103.13(exc. GST)
Better World
  • RS Stock No. 211-0498
  • Mfr. Part No. KSB160SM413
Each
$2,569.04(exc. GST)
  • RS Stock No. 738-2832P
  • Mfr. Part No. 0215012.TXP
Each (Supplied on a Reel)
$2.879(exc. GST)
  • RS Stock No. 221-651
  • Mfr. Part No. RS100P
Each
$226.13(exc. GST)
  • RS Stock No. 911-3534
Each (In a Pack of 10)
$0.509(exc. GST)
  • RS Stock No. 852-7055
  • Mfr. Part No. MDA-20-R
Each
$14.47(exc. GST)
  • RS Stock No. 266-1292
  • Mfr. Part No. 405025
Each
$947.65(exc. GST)
  • RS Stock No. 136-0573
  • Mfr. Part No. E1017202 / FR14GR69V16
Each
$37.15(exc. GST)
  • RS Stock No. 914-4364
  • Mfr. Part No. ATQR10
Each
$150.17(exc. GST)
  • RS Stock No. 413-197
Each (In a Pack of 10)
$2.934(exc. GST)
Better World
  • RS Stock No. 791-3477
  • Mfr. Part No. A9F55120
Each
$74.04(exc. GST)
  • RS Stock No. 703-8670
  • Mfr. Part No. 63NHG0B
Each
$19.99(exc. GST)
  • RS Stock No. 136-0503
  • Mfr. Part No. D1018558 / FR22GR69V63
Each (In a Box of 10)
$57.133(exc. GST)
  • RS Stock No. 541-3631
  • Mfr. Part No. 0452002.MRL
Each (In a Pack of 10)
$2.978(exc. GST)
  • RS Stock No. 541-3237
  • Mfr. Part No. 0251.125HAT1L
Each (In a Pack of 10)
$2.206(exc. GST)
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