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

181 of 999+
  • RS Stock No. 409-902
  • Mfr. Part No. 1610-21-20A
Each
$20.90(exc. GST)
  • RS Stock No. 259-4753
  • Mfr. Part No. 1SDA073033R1
Each
$27,134.01(exc. GST)
  • RS Stock No. 210-9334
  • Mfr. Part No. 3VA9221-0WG30
Each
$183.29(exc. GST)
  • RS Stock No. 179-3082
  • Mfr. Part No. 83120168 / STPT12-5K1000V-YPVM
Each
$785.95(exc. GST)
  • RS Stock No. 248-667
  • Mfr. Part No. 100NHG01BI NH FUSE 100A 500V GL/GG SIZE 01
1 Pack of 3
$53.67(exc. GST)
  • RS Stock No. 264-9225
Each (In a Pack of 5)
$18.592(exc. GST)
  • RS Stock No. 169-9504
  • Mfr. Part No. SR-5-500MA-BK
Each (In a Bag of 200)
$2.55(exc. GST)
  • RS Stock No. 148-331
  • Mfr. Part No. 3VA5130-6EC31-0AA0
Each
$1,659.41(exc. GST)
  • RS Stock No. 282-6201
  • Mfr. Part No. FWE-350A
Each
$820.02(exc. GST)
  • RS Stock No. 248-751
  • Mfr. Part No. 104899 Z-SV/UL-16/3P-3TE/12
Each
$67.72(exc. GST)
  • RS Stock No. 221-3671
Each (In a Pack of 3)
$33.253(exc. GST)
  • RS Stock No. 599-860
  • Mfr. Part No. HMB480
Each
$2,005.00(exc. GST)
Better World
  • RS Stock No. 482-483
  • Mfr. Part No. DF223NVC
Each
$524.51(exc. GST)
  • RS Stock No. 247-2696
  • Mfr. Part No. B216661
1 Box of 10
$169.72(exc. GST)
  • RS Stock No. 825-6122
  • Mfr. Part No. P1X9031
Each
$82.57(exc. GST)
  • RS Stock No. 230-6670
  • Mfr. Part No. A9F44340
Each
$101.97(exc. GST)
  • RS Stock No. 174-0678
  • Mfr. Part No. 0251004.MRT1L
Each (In a Pack of 10)
$1.328(exc. GST)
  • RS Stock No. 610-274
  • Mfr. Part No. 5SY7613-8
Each
$509.89(exc. GST)
  • RS Stock No. 211-5964
  • Mfr. Part No. 3RV2938-1K
Each
$66.42(exc. GST)
Better World
  • RS Stock No. 221-1223
  • Mfr. Part No. LV431563
Each
$128.02(exc. GST)
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