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.

Circuit Breakers
Circuit Breakers
Earth & Lightning Protection
Earth & Lightning Protection
Fuse Holders & Accessories
Fuse Holders & Accessories
Fuses
Fuses

34963 Products showing for Fuses & Circuit Breakers

136 of 999+
  • RS Stock No. 459-7924
  • Mfr. Part No. DMM-B-11A
Each (In a Pack of 5)
$168.106(exc. GST)
  • RS Stock No. 284-5338
  • Mfr. Part No. 0034.6615
Each (In a Pack of 10)
$1.269(exc. GST)
Better World
  • RS Stock No. 156-763
  • Mfr. Part No. 3VA2463-7HL42-0AA0
Each
$10,062.98(exc. GST)
  • RS Stock No. 252-3598
  • Mfr. Part No. 49863020
Each
$243.60(exc. GST)
  • RS Stock No. 144-4950
  • Mfr. Part No. MJT716
Each
$50.88(exc. GST)
  • RS Stock No. 723-4875
  • Mfr. Part No. X222.611.59 BUSBAR (PACK OF 10)
Each (In a Pack of 10)
$11.032(exc. GST)
  • RS Stock No. 203-3972
  • Mfr. Part No. 5SD460
Each (In a Pack of 5)
$39.906(exc. GST)
  • RS Stock No. 188-4612
Each
$34.36(exc. GST)
  • RS Stock No. 259-9706
  • Mfr. Part No. 1SCA104162R1001
Each
$555.17(exc. GST)
  • RS Stock No. 207-257
  • Mfr. Part No. SE125A12
Each
$435.07(exc. GST)
  • RS Stock No. 252-5316
  • Mfr. Part No. 60230016
Each (In a Pack of 10)
$3.999(exc. GST)
  • RS Stock No. 123-2857
  • Mfr. Part No. 097.52
Each
$5.95(exc. GST)
  • RS Stock No. 655-447
  • Mfr. Part No. A9F95472
1 Pack of 3
$2,201.99(exc. GST)
Better World
  • RS Stock No. 790-9175
  • Mfr. Part No. A9E18030
Each
$120.21(exc. GST)
Better World
  • RS Stock No. 239-4973
Each (In a Pack of 10)
$15.136(exc. GST)
  • RS Stock No. 238-3931
  • Mfr. Part No. Y085558
Each
$70.22(exc. GST)
  • RS Stock No. 229-193
  • Mfr. Part No. C14G6S CYL FUSE >STR >14 x 51 6A GG 690V AC
1 Pack of 10
$159.48(exc. GST)
  • RS Stock No. 413-822
Each (In a Pack of 10)
$9.61(exc. GST)
  • RS Stock No. 610-389
  • Mfr. Part No. 5SY7302-8
Each
$463.76(exc. GST)
  • RS Stock No. 136-0590
  • Mfr. Part No. W1014572 / FR10GR69V4
Each
$27.51(exc. GST)
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