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

8 of 999+
  • RS Stock No. 413-800
Each (In a Pack of 10)
$17.899(exc. GST)
  • RS Stock No. 738-2933P
  • Mfr. Part No. 0451015.MRL
Each (Supplied on a Reel)
$2.394(exc. GST)
  • RS Stock No. 622-0913
  • Mfr. Part No. 5SE2304
Each (In a Pack of 10)
$3.794(exc. GST)
  • RS Stock No. 230-6840
  • Mfr. Part No. SAU25036183
Each
$532.95(exc. GST)
  • RS Stock No. 627-3406
  • Mfr. Part No. 3030271
Each (In a Pack of 5)
$10.736(exc. GST)
  • RS Stock No. 458-8554
  • Mfr. Part No. KTK-25
Each (In a Pack of 5)
$107.818(exc. GST)
  • RS Stock No. 173-9880
  • Mfr. Part No. 0031.1081
Each (In a Box of 100)
$7.078(exc. GST)
Better World
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Each
$21.49(exc. GST)
  • RS Stock No. 124-2510
  • Mfr. Part No. 7TCA083320R0011 PT205
Each
$161.52(exc. GST)
  • RS Stock No. 703-8645P
  • Mfr. Part No. 50NHG000B
Each (Supplied in a Bag)
$11.57(exc. GST)
  • RS Stock No. 537-1515
  • Mfr. Part No. S505-2-R
Each (In a Pack of 10)
$0.636(exc. GST)
Better World
  • RS Stock No. 219-8275
  • Mfr. Part No. A9L40271
Each
$311.57(exc. GST)
  • RS Stock No. 186-3484
  • Mfr. Part No. 2CSS255102R0064 SN201 C6-L
Each
$74.89(exc. GST)
  • RS Stock No. 230-6653
  • Mfr. Part No. A9F44120
Each
$20.07(exc. GST)
Better World
  • RS Stock No. 247-2142
  • Mfr. Part No. MGPCM12L
Each
$3,338.28(exc. GST)
  • RS Stock No. 782-0911
  • Mfr. Part No. W28-XQ1A-3
Each
$14.17(exc. GST)
  • RS Stock No. 125-6894P
  • Mfr. Part No. 0251004.HAT1L
Each (Supplied as a Tape)
$1.919(exc. GST)
  • RS Stock No. 230-6658
  • Mfr. Part No. A9F44216
Each
$78.19(exc. GST)
  • RS Stock No. 247-2945
  • Mfr. Part No. X222959
1 Box of 10
$46.06(exc. GST)
  • RS Stock No. 787-4126P
  • Mfr. Part No. 0287002.PXCN
Each (Supplied in a Bag)
$0.558(exc. GST)
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