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

41 of 999+
Last RS stock
RS PRO 12A M Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 182-4004
Each (In a Pack of 5)
$11.124(exc. GST)
In Stock
RS PRO 3.15A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 414-049
Each (In a Pack of 10)
$2.366(exc. GST)
In Stock
Littelfuse 200mA T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 725-8035
  • Mfr. Part No. 0215.200TXP
Each (In a Bag of 10)
$2.766(exc. GST)
In Stock
Wickmann 10A Red Blade Car Fuse, 58V dc
  • RS Stock No. 174-0759
  • Mfr. Part No. 0997010.WXN
Each (In a Pack of 10)
$1.341(exc. GST)
In Stock
Eaton 100A British Standard Fuse, A3, 660V ac, 73mm
  • RS Stock No. 414-702
  • Mfr. Part No. TIS63M100
Each
$62.41(exc. GST)
Limited stock
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 16A Current Rating
  • RS Stock No. 210-2068
  • Mfr. Part No. 3120-N521-H7T1-W01D-16A
Each
$78.55(exc. GST)
In Stock
ETI 16A Bottle Fuse Holder, 1P, 400V ac
  • RS Stock No. 289-8815
  • Mfr. Part No. 2231003
Each
$6.29(exc. GST)
In Stock
Better World
ABB Compact Home SH200 MCB, 1P, 6A Curve B, 400V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 539-8138
  • Mfr. Part No. 2CDS211001R0065 SH201-B6
Each
$31.97(exc. GST)
Being discontinued
RS PRO 1A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6023
Each (In a Pack of 10)
$0.882(exc. GST)
In Stock
SIBA 16A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 736-1434
  • Mfr. Part No. 50-199-06/16A
Each
$29.30(exc. GST)
In Stock
RS PRO 1A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 610-9765
Each (In a Pack of 10)
$1.506(exc. GST)
In Stock
RS PRO 6A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3427
Each (In a Pack of 10)
$1.206(exc. GST)
Temporarily out of stock
Intelligent supply module
  • RS Stock No. 577-482
  • Mfr. Part No. EM12D-TIO-000-DC24V-40A
Each
$262.60(exc. GST)
Limited stock
Schurter 6.3A Inline Fuse Holder for 6.3 x 32mm Fuse, 32V dc
  • RS Stock No. 703-2827
  • Mfr. Part No. 8601.2005.08
Each (In a Bag of 10)
$3.669(exc. GST)
Unavailable
Schneider Electric ComPact Trip Unit for use with Compact NSX 100/160/250 circuit breakers
  • RS Stock No. 221-0932
  • Mfr. Part No. LV429172
Each
$899.71(exc. GST)
In Stock
Schurter SMD Non Resettable Fuse 63mA, 125V ac/dc
  • RS Stock No. 344-5119
  • Mfr. Part No. 3404.0003.11
Each (In a Pack of 10)
$2.394(exc. GST)
In Stock
Schurter SMD Non Resettable Fuse 1A, 32 V ac, 63V dc
  • RS Stock No. 665-7387
  • Mfr. Part No. 3413.0216.22.
Each (In a Pack of 10)
$1.119(exc. GST)
In Stock
Legrand 2A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 180-6114
  • Mfr. Part No. 0 133 02
Each (In a Box of 10)
$7.973(exc. GST)
In Stock
RS PRO 2A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-609
Each (In a Pack of 10)
$2.847(exc. GST)
In Stock
ABB High Performance S800S MCB, 3P, 80A Curve D, 400V AC, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 435-493
  • Mfr. Part No. 2CCG001244R0001
Each
$576.50(exc. GST)
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