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

180 of 999+
WAGO 32A Fuse Holder for 10 x 38mm Fuse, 1P, 24V dc
  • RS Stock No. 279-1650
  • Mfr. Part No. 811-314
Each
$54.81(exc. GST)
Littelfuse PC Board Non Resettable Fuse, Axial 1A, 125V ac/dc
  • RS Stock No. 541-3265P
  • Mfr. Part No. 251001.NRT1L
Each (Supplied in a Bag)
$2.025(exc. GST)
Siemens Trunking Unit for use with Busbar
  • RS Stock No. 266-9621
  • Mfr. Part No. BVP:261489
Each
$2,801.57(exc. GST)
Weidmüller 20A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 285-5320
  • Mfr. Part No. 2827980000
Each (In a Pack of 10)
$12.25(exc. GST)
SENTRON for use with 3VA6 Series
  • RS Stock No. 263-859
  • Mfr. Part No. 3VA9977-0TA20
Each
$2,648.92(exc. GST)
Schneider Electric Acti9 Acti9 iC60 MCB, 3P, 63A, 230V AC
  • RS Stock No. 357-455
  • Mfr. Part No. A9V81363
1 Pack of 15
$18,508.18(exc. GST)
Eaton 32A British Standard Fuse, F1, 550V ac
  • RS Stock No. 414-083
  • Mfr. Part No. NSD32
Each (In a Pack of 5)
$52.482(exc. GST)
Mersen 50A Rail Mount Fuse Holder for 14 x 51mm Fuse, 1P, 690V ac
  • RS Stock No. 768-3756
  • Mfr. Part No. A331016
Each
$50.52(exc. GST)
Phoenix Contact Surge Protector, 40A, 1000V dc
  • RS Stock No. 493-223
  • Mfr. Part No. 1153124
Each
$993.23(exc. GST)
Phoenix Contact 2 Phase Surge Protector, 5kA, DIN Rail Mount
  • RS Stock No. 201-5437
  • Mfr. Part No. 2908438
Each
$224.09(exc. GST)
ABB ZLS728 Spare Parts for use with ZLS728
  • RS Stock No. 141-045
  • Mfr. Part No. 2CCS400900R0101
Each
$66.43(exc. GST)
Better World
Siemens SIRIUS Electronic Circuit Breaker 630mA 3RV2, 3 channels , DIN Rail Mount
  • RS Stock No. 160-100
  • Mfr. Part No. 3RV2311-0GC10
Each
$395.63(exc. GST)
Hager 80A Cartridge Fuse, 22.2 x 58mm
  • RS Stock No. 250-8654
  • Mfr. Part No. LF580M
Each (In a Pack of 10)
$21.401(exc. GST)
ABB SN201 MCB, 1+N, 16A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 186-3479
  • Mfr. Part No. 2CSS245202R0164
Each
$30.79(exc. GST)
Better World
Siemens, SENTRON Circuit breaker 2P 160A, DIN Rail Mount
  • RS Stock No. 224-7815
  • Mfr. Part No. 3VA1116-5ED22-0AA0
Each
$1,603.15(exc. GST)
Littelfuse 300A Grey, White Fuse Strips Car Fuse, 48V dc
  • RS Stock No. 226-1033
  • Mfr. Part No. 157.5701.6301
Each
$18.79(exc. GST)
Phoenix Contact CB-E1 Electronic Circuit breaker 4A 24V CB E1, On Base Element
  • RS Stock No. 217-6386
  • Mfr. Part No. 2800925
Each
$108.53(exc. GST)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 100/160 Circuit Breakers
  • RS Stock No. 260-9382
  • Mfr. Part No. C104MG063
Each
$533.67(exc. GST)
Eaton 50A British Standard Fuse, 240V ac, 43mm
  • RS Stock No. 414-774
  • Mfr. Part No. GSA50
Each (In a Pack of 5)
$140.286(exc. GST)
RS PRO 10 A Panel Mount Fuse Holder, 1P for 5 x 20 mm, 250 V
  • RS Stock No. 277-3916
Each (In a Bag of 1000)
$7.579(exc. GST)
1
180
1758
Results per page

Related links