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

1731 of 999+
Circuit-breaker/thermal 3.5 A
  • RS Stock No. 577-269
  • Mfr. Part No. 4400.0011
Each
$9.54(exc. GST)
Eaton Busbar Support, xEnergy Series
  • RS Stock No. 245-882
  • Mfr. Part No. 133098 XBBB11
Each
$61.82(exc. GST)
Okaya Electric Industries 1 Phase Surge Protector, 5kA, Surface Mount Mount
  • RS Stock No. 190-2014
  • Mfr. Part No. LV150DI-Q4
Each
$71.68(exc. GST)
Schneider Electric, MicroLogic X Circuit Breaker Accessory
  • RS Stock No. 119-559
  • Mfr. Part No. LV850067SP
Each
$110.32(exc. GST)
Schneider Electric, ComPacT NSX Circuit breaker 1P 160A, Breaking Capacity 25 KA, Fixed Mount
  • RS Stock No. 119-590
  • Mfr. Part No. C16N1TM160
Each
$2,345.70(exc. GST)
Better World
ABB System Pro M Compact S200 MCB, 2P, 13A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 746-7712
  • Mfr. Part No. 2CDS252001R0134 S202-C13
Each
$102.54(exc. GST)
Schneider Electric, PowerPact MCCB 3P 600A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 428-707
  • Mfr. Part No. NLGL36600U53X
Each
$33,436.63(exc. GST)
Schneider Electric, MasterPact MTZ1 Circuit Breaker Accessory
  • RS Stock No. 119-528
  • Mfr. Part No. LV833819
Each
$1,047.62(exc. GST)
Schneider Electric Resi9 R9F2 MCB, 3P, 40A Curve B, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 212-027
  • Mfr. Part No. R9F23340
Each
$277.00(exc. GST)
Wickmann 3.5A Resettable Fuse, 30V dc
  • RS Stock No. 174-0905
  • Mfr. Part No. RF1673-000
Each (In a Pack of 100)
$0.945(exc. GST)
ABB Electronic Circuit Breaker 12A 24V EPD24, DIN Rail Mount
  • RS Stock No. 914-4626
  • Mfr. Part No. 2CDE601101R2012 EPD24-TB-101-12A
Each
$476.80(exc. GST)
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA, 3 channels
  • RS Stock No. 155-881
  • Mfr. Part No. 3VA2440-6HK32-0AA0
Each
$6,145.84(exc. GST)
Fuse - Strip 60 w/ Housing 48VDC, 400A
  • RS Stock No. 522-972
  • Mfr. Part No. 157.5701.6401
1 Bag of 25
$913.66(exc. GST)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-984
  • Mfr. Part No. 3VA6580-5KT42-2AA0
Each
$19,966.76(exc. GST)
Schneider Electric, MasterPact Circuit Breaker Accessory
  • RS Stock No. 119-197
  • Mfr. Part No. LV833824
Each
$1,218.37(exc. GST)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-533
  • Mfr. Part No. 3VA6140-8JQ41-2AA0
Each
$6,458.25(exc. GST)
Littelfuse 1.35A Resettable Fuse, 72V
  • RS Stock No. 517-6691P
  • Mfr. Part No. RXEF135
Each (Supplied in a Bag)
$0.706(exc. GST)
ABB Emax2 Electronic Circuit Breaker 1kA Ekip Dip LI, 4 channels
  • RS Stock No. 259-4649
  • Mfr. Part No. 1SDA072921R1
Each
$16,243.21(exc. GST)
Littelfuse SMD Non Resettable Fuse 500mA, 125V
  • RS Stock No. 738-2889
  • Mfr. Part No. 0154.500DRT
Each (In a Pack of 10)
$5.609(exc. GST)
ABB Emax2 Electronic Circuit Breaker 4kA Ekip G Touch LSIG, 3 channels
  • RS Stock No. 259-4368
  • Mfr. Part No. 1SDA072547R1
Each
$49,881.85(exc. GST)
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