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

17 of 999+
  • RS Stock No. 258-6363
  • Mfr. Part No. HC77AY-1
Each (In a Pack of 10)
$2.394(exc. GST)
Better World
  • RS Stock No. 221-1146
  • Mfr. Part No. LV429218
Each
$414.56(exc. GST)
  • RS Stock No. 523-4898
  • Mfr. Part No. F-120-B
Each
$8.63(exc. GST)
  • RS Stock No. 703-8500
  • Mfr. Part No. C10M10
Each (In a Pack of 10)
$2.485(exc. GST)
  • RS Stock No. 537-5725
  • Mfr. Part No. 260180 NZM2-XTVDVR
Each
$390.45(exc. GST)
  • RS Stock No. 180-6111
  • Mfr. Part No. 0 130 10
Each (In a Box of 10)
$5.545(exc. GST)
  • RS Stock No. 303-323
  • Mfr. Part No. 787-3861/004-1020
Each
$105.90(exc. GST)
  • RS Stock No. 665-7390P
  • Mfr. Part No. 3413.0221.22.
Each (Supplied on a Reel)
$0.466(exc. GST)
  • RS Stock No. 774-0039
Each
$22.47(exc. GST)
  • RS Stock No. 269-3879
  • Mfr. Part No. 8020.5078
Each
$2.08(exc. GST)
  • RS Stock No. 541-3271
  • Mfr. Part No. 025101.5HAT1L
Each (In a Pack of 10)
$1.547(exc. GST)
  • RS Stock No. 188-7044
  • Mfr. Part No. F222208
Each (In a Pack of 10)
$3.076(exc. GST)
  • RS Stock No. 171-6792
  • Mfr. Part No. S505SC-4-R
Each (In a Pack of 5)
$0.35(exc. GST)
Better World
  • RS Stock No. 219-8406
  • Mfr. Part No. LV438136
Each
$482.06(exc. GST)
  • RS Stock No. 230-6680
  • Mfr. Part No. A9N18358
Each
$108.77(exc. GST)
  • RS Stock No. 136-0594
  • Mfr. Part No. P1023007 / 2.030.000
Each
$310.29(exc. GST)
  • RS Stock No. 181-8591
  • Mfr. Part No. C14M16
Each (In a Box of 10)
$4.726(exc. GST)
  • RS Stock No. 247-2842
  • Mfr. Part No. N214625
1 Box of 10
$140.11(exc. GST)
  • RS Stock No. 124-2997
  • Mfr. Part No. EAM10 EAM10
Each
$266.29(exc. GST)
  • RS Stock No. 797-6046
  • Mfr. Part No. SF 070 R
Each (In a Pack of 10)
$2.50(exc. GST)
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