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

34912 Products showing for Fuses & Circuit Breakers

29 of 999+
Better World
Schneider Electric Linergy Busbar, 690V, 60mm Pitch
  • RS Stock No. 211-2311
  • Mfr. Part No. LA9ZA32621
Each (In a Pack of 4)
$158.305(exc. GST)
Better World
Schneider Electric Surge Protector, 200A, <3.9kV, DIN Rail Mount
  • RS Stock No. 219-8276
  • Mfr. Part No. A9L40281
Each
$256.35(exc. GST)
Mersen Base Mount Fuse Holder for 000 Fuse, 700V ac
  • RS Stock No. 304-2928
  • Mfr. Part No. C220710
Each
$51.65(exc. GST)
RS PRO 1.5A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3394
Each (In a Pack of 10)
$0.574(exc. GST)
Siemens 1.6A F Cartridge Fuse, 5 x 25mm
  • RS Stock No. 271-3208
  • Mfr. Part No. 8WA1822-7EF18
Each (In a Pack of 10)
$6.217(exc. GST)
Schurter PC Board Non Resettable Fuse, Axial 1A, 125V ac/dc
  • RS Stock No. 173-9671
  • Mfr. Part No. 7010.7070.13
Each (In a Bag of 100)
$2.654(exc. GST)
Mersen 63A NH Fuse, NH00, 690V ac
  • RS Stock No. 448-3386
  • Mfr. Part No. V320155
Each
$144.45(exc. GST)
Europa 3 Phase Distribution Board, 36 Way, 125 A
  • RS Stock No. 849-6421
  • Mfr. Part No. TPN12
Each
$1,422.38(exc. GST)
Legrand 4A Ceramic Cartridge Fuse, 8 x 32mm
  • RS Stock No. 266-3088
  • Mfr. Part No. 0 124 04
1 Box of 10
$65.20(exc. GST)
Schneider Electric, ComPacT MCCB 3P 40A, Fixed Mount
  • RS Stock No. 260-9432
  • Mfr. Part No. C10F3TM040
Each
$950.95(exc. GST)
Mersen 10A Slow-Blow Ceramic Cartridge Fuse, 8.5 x 31.5mm
  • RS Stock No. 247-2929
  • Mfr. Part No. W201292
1 Box of 10
$32.47(exc. GST)
Bourns Thermal Fuse +82°C 80 A, 28V
  • RS Stock No. 258-6364
  • Mfr. Part No. HC82AY-1
Each (In a Bag of 5000)
$1.308(exc. GST)
Eaton 80A British Standard Fuse, LET, 150 V dc, 240V ac, 41.8mm
  • RS Stock No. 156-8844
  • Mfr. Part No. 80LET
Each
$58.42(exc. GST)
Schurter PC Board Non Resettable Fuse, Radial 6.3A, 250V ac
  • RS Stock No. 284-5423
  • Mfr. Part No. 0034.6623
Each (In a Pack of 10)
$0.769(exc. GST)
Littelfuse 6A M Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 769-0051
  • Mfr. Part No. 0234006.MXP
Each (In a Pack of 25)
$1.292(exc. GST)
RS PRO 6.3A Panel Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 563-784
Each
$9.32(exc. GST)
Phoenix Contact EC-E Electronic Circuit Breaker 1A 12V, 1 channels , DIN Rail
  • RS Stock No. 131-301
  • Mfr. Part No. 3000760
Each (In a Pack of 6)
$127.258(exc. GST)
RS PRO 5A Tan Blade Car Fuse, 32V dc
  • RS Stock No. 177-8119
Each (In a Pack of 50)
$0.518(exc. GST)
nVent ERIFLEX ERIFLEX Busbar
  • RS Stock No. 277-6174
  • Mfr. Part No. 568610
Each (In a Pack of 10)
$13.569(exc. GST)
Legrand 6.3A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 266-3069
  • Mfr. Part No. 0 102 63
1 Box of 10
$41.38(exc. GST)
Results per page
1
29
1746

Related links