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

247 of 999+
In Stock
  • RS Stock No. 668-6073
Each (In a Pack of 10)
$1.232(exc. GST)
Temporarily out of stock
  • RS Stock No. 599-873
  • Mfr. Part No. HMX350
Each
$1,355.10(exc. GST)
In Stock
  • RS Stock No. 304-2079
  • Mfr. Part No. M300046
Each
$364.39(exc. GST)
Temporarily out of stock
Better World
  • RS Stock No. 260-470
  • Mfr. Part No. 3VA6340-8KQ41-0AA0
Each
$13,634.09(exc. GST)
Temporarily out of stock
  • RS Stock No. 228-836
  • Mfr. Part No. 7.2WFMSJ160
Each
$1,834.20(exc. GST)
In Stock
  • RS Stock No. 624-3130P
  • Mfr. Part No. NANOSMDC150F-2
Each (Supplied on a Reel)
$0.628(exc. GST)
In Stock
  • RS Stock No. 266-3103
  • Mfr. Part No. 0 134 06
1 Box of 10
$127.57(exc. GST)
Temporarily out of stock
  • RS Stock No. 627-089
  • Mfr. Part No. 3NC1202-0MK
1 Pack of 20
$446.29(exc. GST)
Temporarily out of stock
  • RS Stock No. 231-341
  • Mfr. Part No. 113193 NZMB2-A160-SVE
Each
$2,512.33(exc. GST)
Last RS stock
  • RS Stock No. 174-0752
  • Mfr. Part No. 0458010.DR
Each (In a Pack of 5)
$3.47(exc. GST)
In Stock
  • RS Stock No. 769-3343
  • Mfr. Part No. SS-5-400MA-BK
Each (In a Pack of 5)
$1.862(exc. GST)
Temporarily out of stock
  • RS Stock No. 611-269
  • Mfr. Part No. PLSM-D16/3-MW
Each
$215.00(exc. GST)
Temporarily out of stock
  • RS Stock No. 599-799
  • Mfr. Part No. NKN306
Each
$496.13(exc. GST)
Temporarily out of stock
  • RS Stock No. 599-849
  • Mfr. Part No. CFC163F
Each
$456.10(exc. GST)
Temporarily out of stock
  • RS Stock No. 259-147
  • Mfr. Part No. 283049 BF-U-4/96-C
Each
$1,780.06(exc. GST)
Temporarily out of stock
Better World
  • RS Stock No. 209-7021
  • Mfr. Part No. 3VA1196-3ED32-0AA0
Each
$765.89(exc. GST)
In Stock
  • RS Stock No. 260-7739
  • Mfr. Part No. C16B3TM100
Each
$1,852.97(exc. GST)
Temporarily out of stock
  • RS Stock No. 148-198
  • Mfr. Part No. 3VA5111-5EC31-0AA0
Each
$1,916.67(exc. GST)
Temporarily out of stock
Better World
  • RS Stock No. 160-050
  • Mfr. Part No. 3RV2041-4MA10-0DA0
Each
$1,592.03(exc. GST)
Temporarily out of stock
  • RS Stock No. 157-965
  • Mfr. Part No. 3VA9474-0QC00
Each
$1,270.21(exc. GST)
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