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

3 of 999+
  • RS Stock No. 787-4108
  • Mfr. Part No. 0287005.PXCN
Each (In a Pack of 10)
$0.629(exc. GST)
  • RS Stock No. 245-144
  • Mfr. Part No. A9D56832
Each
$404.67(exc. GST)
  • RS Stock No. 247-083
  • Mfr. Part No. 100733 NZM1-XDGVR
Each
$79.71(exc. GST)
  • RS Stock No. 182-1759
  • Mfr. Part No. 500NHG2B
Each
$69.74(exc. GST)
Better World
  • RS Stock No. 175-1484
  • Mfr. Part No. GV4LE80B
Each
$670.85(exc. GST)
  • RS Stock No. 207-336
  • Mfr. Part No. SE36B250
Each
$1,222.27(exc. GST)
  • RS Stock No. 230-6838
  • Mfr. Part No. SAU25024183
Each
$314.20(exc. GST)
  • RS Stock No. 668-6007
Each (In a Pack of 10)
$0.745(exc. GST)
  • RS Stock No. 657-1429
  • Mfr. Part No. 3NC1091
Each (In a Pack of 12)
$28.143(exc. GST)
  • RS Stock No. 454-8067
  • Mfr. Part No. 259078 NZMB1-A80
Each
$501.02(exc. GST)
  • RS Stock No. 787-4388P
  • Mfr. Part No. MAHC0001ZXJ
Each (Supplied in a Bag)
$45.76(exc. GST)
Better World
  • RS Stock No. 254-6300
  • Mfr. Part No. C10N3TM100
Each
$1,196.29(exc. GST)
  • RS Stock No. 541-3293P
  • Mfr. Part No. 0251003.NRT1L
Each (Supplied as a Tape)
$1.754(exc. GST)
  • RS Stock No. 145-107
  • Mfr. Part No. SPD-10-320S
Each
$25.84(exc. GST)
  • RS Stock No. 647-8493
  • Mfr. Part No. MF-R050
Each (In a Pack of 10)
$0.487(exc. GST)
  • RS Stock No. 277-3922
Each (In a Pack of 5)
$8.268(exc. GST)
  • RS Stock No. 454-8051
  • Mfr. Part No. 259077 NZMB1-A63
Each
$468.92(exc. GST)
  • RS Stock No. 768-6106
  • Mfr. Part No. 2313402
Each (In a Pack of 5)
$4.892(exc. GST)
Better World
  • RS Stock No. 790-8875
  • Mfr. Part No. A9F44150
Each
$15.20(exc. GST)
Better World
  • RS Stock No. 221-1214
  • Mfr. Part No. LV429515
Each
$51.94(exc. GST)
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