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

202 of 999+
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA 1SDA07, 4 channels
  • RS Stock No. 259-4531
  • Mfr. Part No. 1SDA072768R1
Each
$15,764.41(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip G Hi-Touch LSIG, 3 channels
  • RS Stock No. 259-3282
  • Mfr. Part No. 1SDA071180R1
Each
$48,803.94(exc. GST)
In Stock
ETA REX12 Electronic Circuit breaker 6A 24V REX12D-T, DIN Rail Mount
  • RS Stock No. 175-0380
  • Mfr. Part No. REX12D-TA2-100-DC24V-6A/6A
Each
$150.98(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Touch LI, 3 channels
  • RS Stock No. 259-3080
  • Mfr. Part No. 1SDA070934R1
Each
$12,228.83(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3044
  • Mfr. Part No. 1SDA070899R1
Each
$19,811.47(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3034
  • Mfr. Part No. 1SDA070889R1
Each
$20,432.50(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2.5kA Ekip Dip LI, 3 channels
  • RS Stock No. 259-3212
  • Mfr. Part No. 1SDA071081R1
Each
$24,383.38(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 5kA Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-4436
  • Mfr. Part No. 1SDA072626R1
Each
$81,884.95(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 3 channels
  • RS Stock No. 259-3187
  • Mfr. Part No. 1SDA071053R1
Each
$20,852.19(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LSI, 4 channels
  • RS Stock No. 259-4607
  • Mfr. Part No. 1SDA072875R1
Each
$14,607.70(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 6.3kA 1SDA07, 3 channels
  • RS Stock No. 259-4451
  • Mfr. Part No. 1SDA072651R1
Each
$112,587.15(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1kA Ekip G Touch LSIG, 4 channels
  • RS Stock No. 259-3482
  • Mfr. Part No. 1SDA071437R1
Each
$22,154.33(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-3317
  • Mfr. Part No. 1SDA071225R1
Each
$53,487.28(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 3.2kA Ekip Hi-Touch LSI, 3 channels
  • RS Stock No. 259-3281
  • Mfr. Part No. 1SDA071179R1
Each
$47,465.76(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 1.6kA Ekip Touch LI, 3 channels
  • RS Stock No. 259-3133
  • Mfr. Part No. 1SDA070984R1
Each
$11,113.76(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA Ekip G Hi-Touch LSIG, 3 channels
  • RS Stock No. 259-3312
  • Mfr. Part No. 1SDA071220R1
Each
$54,193.54(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-4752
  • Mfr. Part No. 1SDA073032R1
Each
$25,833.02(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.25kA 1SDA07, 4 channels
  • RS Stock No. 259-3632
  • Mfr. Part No. 1SDA071607R1
Each
$25,386.99(exc. GST)
Temporarily out of stock
ABB Electronic Circuit Breaker 3A 24V EPD24, DIN Rail Mount
  • RS Stock No. 914-4607
  • Mfr. Part No. 2CDE601101R2003 EPD24-TB-101-3A
Each
$342.00(exc. GST)
In Stock
Eaton 32A Bolted Tag Fuse, F1, 440V ac
  • RS Stock No. 181-8729
  • Mfr. Part No. NS32BS
Each
$29.91(exc. GST)
1
202
1758
Results per page

Related links