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

125 of 999+
  • RS Stock No. 489-4512
  • Mfr. Part No. C10M25
Each (In a Pack of 10)
$2.415(exc. GST)
  • RS Stock No. 181-8733
  • Mfr. Part No. 125NHG00B-690
Each
$19.71(exc. GST)
  • RS Stock No. 230-6681
  • Mfr. Part No. A9N18359
Each
$122.15(exc. GST)
  • RS Stock No. 911-3470
Each (In a Pack of 10)
$0.137(exc. GST)
  • RS Stock No. 654-148
  • Mfr. Part No. C253MG250
Each
$542.91(exc. GST)
  • RS Stock No. 782-8022
  • Mfr. Part No. W58-XB1A4A-4
Each
$25.29(exc. GST)
  • RS Stock No. 338-562
  • Mfr. Part No. 411132
Each
$138.60(exc. GST)
  • RS Stock No. 893-8521
  • Mfr. Part No. 50-140-06/50A
Each
$56.20(exc. GST)
  • RS Stock No. 125-309
  • Mfr. Part No. 178867 KLV-2UPP-4PR
Each
$126.86(exc. GST)
  • RS Stock No. 136-0635
  • Mfr. Part No. S1017191 / FR14GR69V40T
Each
$61.22(exc. GST)
  • RS Stock No. 136-0524
  • Mfr. Part No. HP10M15
Each (In a Box of 10)
$40.129(exc. GST)
  • RS Stock No. 261-877
  • Mfr. Part No. BH-3144
1 Pack of 10
$13,299.95(exc. GST)
  • RS Stock No. 602-082
  • Mfr. Part No. BTC380E
Each
$1,242.56(exc. GST)
Better World
  • RS Stock No. 270-3659
  • Mfr. Part No. 3VA2025-6JQ46-0AA0
Each
$5,049.43(exc. GST)
  • RS Stock No. 244-940
  • Mfr. Part No. SE48B250
Each
$1,632.61(exc. GST)
  • RS Stock No. 221-5595
  • Mfr. Part No. 3-128-208
Each
$26.10(exc. GST)
  • RS Stock No. 266-3130
  • Mfr. Part No. 0 143 02
1 Box of 10
$86.21(exc. GST)
  • RS Stock No. 371-8704
  • Mfr. Part No. F-3770
Each (In a Pack of 5)
$3.658(exc. GST)
  • RS Stock No. 268-037
  • Mfr. Part No. 3VA5240-7ED31-0AA0
Each
$2,094.48(exc. GST)
Better World
  • RS Stock No. 249-887
  • Mfr. Part No. 3VA6460-6JT31-0AA0
Each
$15,338.41(exc. GST)
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