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

1726 of 999+
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip G Hi-Touch LSIG, 4 channels
  • RS Stock No. 259-4581
  • Mfr. Part No. 1SDA072830R1
Each
$23,723.04(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 50A, Fixed
  • RS Stock No. 122-492
  • Mfr. Part No. LV510534
Each
$514.40(exc. GST)
Schneider Electric RCBO, 32A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 130-734
  • Mfr. Part No. A9D50232
Each
$1,964.44(exc. GST)
Socomec 80A F Cartridge Fuse, 22 x 58mm
  • RS Stock No. 223-2850
  • Mfr. Part No. 60630080
Each (In a Pack of 10)
$22.636(exc. GST)
Schneider Electric, ComPacT NSX Circuit breaker 4P 25A, Breaking Capacity 25 KA, Fixed Mount
  • RS Stock No. 119-281
  • Mfr. Part No. C11E44V025B
Each
$4,146.23(exc. GST)
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 4 channels
  • RS Stock No. 259-3866
  • Mfr. Part No. 1SDA071876R1
Each
$71,790.50(exc. GST)
Eaton IZMX16 Electronic Circuit Breaker 800A , Fixed
  • RS Stock No. 127-719
  • Mfr. Part No. 183404 IZMX16N4-P08F-1
Each
$18,684.30(exc. GST)
Schneider Electric, ComPacT NSX Circuit breaker 4P 80A, Fixed Mount
  • RS Stock No. 119-287
  • Mfr. Part No. C10N6TM080
Each
$3,023.37(exc. GST)
Schurter SMD Non Resettable Fuse 2A, 250 V ac, 125V dc
  • RS Stock No. 703-2758P
  • Mfr. Part No. 3404.2419.22
Each (Supplied on a Reel)
$2.062(exc. GST)
Socomec 50A F Cartridge Fuse, 14 x 51mm
  • RS Stock No. 223-2822
  • Mfr. Part No. 60520050
Each (In a Pack of 10)
$12.152(exc. GST)
ABB Emax2 Electronic Circuit Breaker 6.3kA 1SDA07, 4 channels
  • RS Stock No. 259-3902
  • Mfr. Part No. 1SDA071931R1
Each
$118,460.02(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1.25kA Ekip Dip LSI, 4 channels
  • RS Stock No. 259-4553
  • Mfr. Part No. 1SDA072802R1
Each
$10,063.19(exc. GST)
Schneider Electric RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Resi9 Range
  • RS Stock No. 212-021
  • Mfr. Part No. R9D01606
Each
$293.56(exc. GST)
SIBA SMD Non Resettable Fuse 630mA, 250V
  • RS Stock No. 736-2627P
  • Mfr. Part No. 160000.0,63
Each (Supplied in a Bag)
$2.037(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Plug In
  • RS Stock No. 122-467
  • Mfr. Part No. LV510443P
Each
$400.28(exc. GST)
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 36 kA
  • RS Stock No. 209-6999
  • Mfr. Part No. 3VA1150-4EF42-0AA0
Each
$1,124.70(exc. GST)
Schneider Electric, PowerPact Circuit Breaker Accessory 3P 80A, Breaking Capacity 65 KA, DIN Rail Mount
  • RS Stock No. 119-607
  • Mfr. Part No. NHGF36080TW
Each
$3,774.06(exc. GST)
Electronic overcurrent protection
  • RS Stock No. 577-485
  • Mfr. Part No. ESX10-TA-100-DC24V-8A
Each
$169.09(exc. GST)
Socomec 8A F Cartridge Fuse, 10 x 38mm
  • RS Stock No. 223-2792
  • Mfr. Part No. 60130008
Each (In a Pack of 10)
$2.517(exc. GST)
Siemens ALPHA Base for use with ALPHA 630 DIN
  • RS Stock No. 629-091
  • Mfr. Part No. 8GK9900-0KK14
Each
$491.44(exc. GST)
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