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.

34933 Products showing for Fuses & Circuit Breakers

19 of 999+
  • RS Stock No. 610-9636
Each (In a Pack of 10)
$1.045(exc. GST)
  • RS Stock No. 230-2948
  • Mfr. Part No. W222958
Each (In a Pack of 10)
$2.862(exc. GST)
  • RS Stock No. 541-3631P
  • Mfr. Part No. 0452002.MRL
Each (Supplied on a Reel)
$2.518(exc. GST)
  • RS Stock No. 653-863
  • Mfr. Part No. A9R41240
Each
$543.28(exc. GST)
  • RS Stock No. 245-140
  • Mfr. Part No. A9D06810
Each
$432.30(exc. GST)
  • RS Stock No. 125-6894
  • Mfr. Part No. 0251004.HAT1L
Each (In a Pack of 10)
$1.83(exc. GST)
  • RS Stock No. 260-7779
  • Mfr. Part No. C16H3MA150
Each
$2,645.46(exc. GST)
  • RS Stock No. 721-1563
Each (In a Pack of 10)
$5.665(exc. GST)
  • RS Stock No. 537-1329
  • Mfr. Part No. S506-4-R
Each (In a Pack of 10)
$0.517(exc. GST)
  • RS Stock No. 417-335
  • Mfr. Part No. C1515
Each (In a Pack of 5)
$7.90(exc. GST)
  • RS Stock No. 563-671
Each (In a Pack of 10)
$0.902(exc. GST)
  • RS Stock No. 395-721
  • Mfr. Part No. 3NA6803
Each (In a Pack of 3)
$18.163(exc. GST)
  • RS Stock No. 738-3135
  • Mfr. Part No. 0KLK004.T
Each
$72.88(exc. GST)
  • RS Stock No. 228-937
  • Mfr. Part No. CH143DIU 3P 14x51 Neon Indicator Fuse Holder
1 Pack of 2
$278.92(exc. GST)
  • RS Stock No. 303-297
  • Mfr. Part No. 787-3664
Each
$360.98(exc. GST)
  • RS Stock No. 224-2563
  • Mfr. Part No. 64210000
Each
$26.83(exc. GST)
  • RS Stock No. 180-6107
  • Mfr. Part No. 0 130 02
Each (In a Box of 10)
$5.342(exc. GST)
  • RS Stock No. 488-6943
  • Mfr. Part No. 2CDS251001R0325 - S201B32
Each
$47.20(exc. GST)
  • RS Stock No. 249-5891
  • Mfr. Part No. 4 035 50
Each
$89.20(exc. GST)
  • RS Stock No. 779-9978
  • Mfr. Part No. OFAF000H100 1SCA022627R1550
Each
$14.37(exc. GST)
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