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

291 of 999+
Temporarily out of stock
Eaton Moeller Electronic Circuit Breaker 5kA IZMX/INX, Fixed
  • RS Stock No. 262-812
  • Mfr. Part No. 303688 IN63N4-50F-1
Each
$124,811.15(exc. GST)
Temporarily out of stock
Schneider Electric Straight Busbar Trunking, 3m, 40A, Canalis Series
  • RS Stock No. 275-8809
  • Mfr. Part No. KBA40ED4303W
Each
$343.67(exc. GST)
In Stock
Wickmann 25A Clear Blade Car Fuse, 32V dc
  • RS Stock No. 174-0691
  • Mfr. Part No. 0297025.WXNV
Each (In a Pack of 25)
$0.507(exc. GST)
In Stock
Littelfuse SMD Non Resettable Fuse 3A, 125V ac
  • RS Stock No. 769-3731
  • Mfr. Part No. 0452003.NRL
Each (In a Pack of 10)
$2.953(exc. GST)
In Stock
Eaton 1A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 848-2753
  • Mfr. Part No. AGC-1-R
Each
$3.75(exc. GST)
In Stock
Schneider Electric, ComPacT NSX Circuit breaker 1P 16A, Breaking Capacity 25 kA, Busbar System
  • RS Stock No. 654-187
  • Mfr. Part No. IL0161P253
Each
$387.15(exc. GST)
Temporarily out of stock
Legrand 80A M Ceramic Cartridge Fuse, 22.2 x 58mm
  • RS Stock No. 266-3163
  • Mfr. Part No. 0 151 80
1 Box of 10
$535.41(exc. GST)
Temporarily out of stock
Eaton xComfort KLV Installaton Accessory for use with Basic Device, Installation Distribution Boards, KLV For Projects
  • RS Stock No. 262-275
  • Mfr. Part No. 302484 KLV-F5M-W-4PR
Each
$1,003.02(exc. GST)
In Stock
RS PRO PC Board Non Resettable Fuse, Radial 250mA, 250V
  • RS Stock No. 767-5171
Each (In a Pack of 10)
$0.271(exc. GST)
Temporarily out of stock
ABB Cover for use with DDA200, F200, S200
  • RS Stock No. 250-4722
  • Mfr. Part No. 2CDL200001R3002
Each
$4.70(exc. GST)
In Stock
PEIGNE EQUILIBRE RESI 13 MOD
  • RS Stock No. 250-4767
  • Mfr. Part No. 2CDL340001R1022
Each
$61.33(exc. GST)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 600A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 249-956
  • Mfr. Part No. 3VA6560-6HN36-0AA0
Each
$9,530.42(exc. GST)
Temporarily out of stock
ABB IEC Range Busbar for use with S200C
  • RS Stock No. 250-4785
  • Mfr. Part No. 2CDL801145R1013
1 Box of 15
$226.09(exc. GST)
Temporarily out of stock
ABB Feeder Terminal for use with SN201
  • RS Stock No. 250-4726
  • Mfr. Part No. 2CDL200011R2524
1 Box of 25
$178.37(exc. GST)
Temporarily out of stock
Better World
Schneider Electric TeSys Thermal Circuit Breaker - GV4LE 3 Pole 690V ac Voltage Rating, 2A Current Rating
  • RS Stock No. 175-1451
  • Mfr. Part No. GV4LE02N6
Each
$1,097.80(exc. GST)
In Stock
ABB Cover for use with 2 And 3 Phases Busbars
  • RS Stock No. 250-4780
  • Mfr. Part No. 2CDL800001R0030
1 Box of 10
$59.18(exc. GST)
Temporarily out of stock
ABB IEC Range Busbar for use with S200C
  • RS Stock No. 250-4789
  • Mfr. Part No. 2CDL803141R1111
1 Box of 15
$5,670.47(exc. GST)
Temporarily out of stock
ABB IEC Range Busbar for use with DDA200, F200, S200
  • RS Stock No. 250-4745
  • Mfr. Part No. 2CDL230002R1009
Each
$52.26(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 3.2kA 1SDA07, 3 channels
  • RS Stock No. 259-4346
  • Mfr. Part No. 1SDA072516R1
Each
$37,690.16(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 4kA 1SDA07, 3 channels
  • RS Stock No. 259-4398
  • Mfr. Part No. 1SDA072580R1
Each
$65,567.44(exc. GST)
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