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

42 of 999+
  • RS Stock No. 210-2088
  • Mfr. Part No. 3120-N551-H7T1-W02D-20A
Each
$62.66(exc. GST)
  • RS Stock No. 865-7376
  • Mfr. Part No. 0034.2515
Each (In a Pack of 10)
$2.226(exc. GST)
  • RS Stock No. 415-985
  • Mfr. Part No. 2212001
Each (In a Pack of 5)
$3.226(exc. GST)
  • RS Stock No. 563-453
Each (In a Pack of 10)
$4.312(exc. GST)
  • RS Stock No. 703-8667
  • Mfr. Part No. 25NHG0B
Each
$20.42(exc. GST)
  • RS Stock No. 187-5170
  • Mfr. Part No. 5ST3620
Each
$31.88(exc. GST)
  • RS Stock No. 831-9194
  • Mfr. Part No. 1SDA066322R1 SOR-C XT1..XT4 F/P 24-30 Vac/dc
Each
$365.05(exc. GST)
  • RS Stock No. 890-3736
  • Mfr. Part No. 2905333
Each
$525.26(exc. GST)
  • RS Stock No. 245-134
  • Mfr. Part No. EZ9E12MCU
Each
$259.12(exc. GST)
  • RS Stock No. 174-0744
  • Mfr. Part No. 0157001.DR
Each (In a Pack of 5)
$3.69(exc. GST)
  • RS Stock No. 893-0609
  • Mfr. Part No. 696212001002
Each (In a Pack of 5)
$3.652(exc. GST)
  • RS Stock No. 191-9457
  • Mfr. Part No. 2CSS245102R0164 SN201 L C16-L
Each
$30.49(exc. GST)
Better World
  • RS Stock No. 746-7598
  • Mfr. Part No. 2CDS253001R0165 S203-B16
Each
$129.46(exc. GST)
  • RS Stock No. 270-3051
  • Mfr. Part No. J085407
Each (In a Box of 10)
$2.537(exc. GST)
  • RS Stock No. 415-222
  • Mfr. Part No. TIS63
Each
$52.93(exc. GST)
  • RS Stock No. 563-738
Each (In a Pack of 10)
$0.983(exc. GST)
  • RS Stock No. 396-083
  • Mfr. Part No. 3NA3140
Each (In a Pack of 3)
$33.317(exc. GST)
Better World
  • RS Stock No. 212-0143
  • Mfr. Part No. A9F95110
Each
$78.12(exc. GST)
  • RS Stock No. 769-0174
  • Mfr. Part No. 64800001009
Each (In a Pack of 25)
$0.378(exc. GST)
  • RS Stock No. 282-2927
  • Mfr. Part No. MX9MC110
Each
$8.07(exc. GST)
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