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

35151 Products showing for Fuses & Circuit Breakers

171 of 999+
Better World
  • RS Stock No. 772-1521
  • Mfr. Part No. A9N61528
Each
$189.97(exc. GST)
  • RS Stock No. 177-8113
Each (In a Pack of 50)
$1.148(exc. GST)
  • RS Stock No. 654-760
  • Mfr. Part No. IL1603P36
Each
$2,106.19(exc. GST)
  • RS Stock No. 139-883
  • Mfr. Part No. NITD20M25
Each (In a Pack of 5)
$9.876(exc. GST)
  • RS Stock No. 252-825
  • Mfr. Part No. 215645 EVG-3PHAS/9MODUL
Each
$20.37(exc. GST)
  • RS Stock No. 259-4340
  • Mfr. Part No. 1SDA072508R1
Each
$40,886.77(exc. GST)
  • RS Stock No. 173-7895
  • Mfr. Part No. 8020.0517.PT
1 Box of 1000
$646.86(exc. GST)
  • RS Stock No. 385-9388
  • Mfr. Part No. HHB
Each (In a Pack of 5)
$14.96(exc. GST)
Better World
  • RS Stock No. 156-648
  • Mfr. Part No. 3VA2216-5JQ42-0AA0
Each
$6,888.75(exc. GST)
Better World
  • RS Stock No. 178-7873
  • Mfr. Part No. LV426905
Each
$156.87(exc. GST)
  • RS Stock No. 221-1305
  • Mfr. Part No. TRV00880
Each
$219.45(exc. GST)
  • RS Stock No. 755-2965
  • Mfr. Part No. 3RV2917-5CA00
Each
$24.41(exc. GST)
Better World
  • RS Stock No. 539-8251
  • Mfr. Part No. 2CDS211001R0324 SH201-C32
Each
$41.10(exc. GST)
  • RS Stock No. 210-2098
  • Mfr. Part No. 3120-N551-H7T1-W14DR4-20A
Each
$63.47(exc. GST)
Better World
  • RS Stock No. 259-9886
  • Mfr. Part No. 1SDA070719R1
Each
$16,873.98(exc. GST)
  • RS Stock No. 259-4242
  • Mfr. Part No. 1SDA072367R1
Each
$23,305.47(exc. GST)
  • RS Stock No. 228-4356
  • Mfr. Part No. TA35-CBTWF030C0
1 Box of 10
$321.00(exc. GST)
  • RS Stock No. 654-990
  • Mfr. Part No. 33511
Each
$4,246.26(exc. GST)
Better World
  • RS Stock No. 212-0142
  • Mfr. Part No. A9F95106
Each
$90.62(exc. GST)
  • RS Stock No. 654-164
  • Mfr. Part No. LV429354T
Each
$421.15(exc. GST)
Results per page