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

34958 Products showing for Fuses & Circuit Breakers

7 of 999+
Eaton 2A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-1341
  • Mfr. Part No. S506-2-R
Each (In a Pack of 10)
$0.475(exc. GST)
Littelfuse 2A Grey Blade Car Fuse, 32V dc
  • RS Stock No. 787-4126
  • Mfr. Part No. 0287002.PXCN
Each (In a Pack of 10)
$0.593(exc. GST)
WJ Furse Lightning Earth Inspection Pit W. 300mm x 300mm H. 158mm 5000kg
  • RS Stock No. 124-2510
  • Mfr. Part No. 7TCA083320R0011 PT205
Each
$149.77(exc. GST)
ABB Electronic Circuit Breaker 2A 24V EPD24, DIN Rail Mount
  • RS Stock No. 914-4604
  • Mfr. Part No. 2CDE601101R2002 EPD24-TB-101-2A
Each
$209.37(exc. GST)
RS PRO 30A Inline Fuse Holder for ATO/ATC 19x18.6mm Fuse, 32V dc
  • RS Stock No. 284-6489
Each (In a Pack of 5)
$13.478(exc. GST)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 63A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8879
  • Mfr. Part No. A9F44163
Each
$21.36(exc. GST)
Eaton 63A British Standard Fuse, F2, 415V ac
  • RS Stock No. 122-9606
  • Mfr. Part No. ESD63
Each (In a Pack of 5)
$7.588(exc. GST)
SIBA 30A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 314-4844
  • Mfr. Part No. 50-179-06/30A
Each (In a Pack of 5)
$22.918(exc. GST)
RS PRO 1.6A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6076
Each (In a Pack of 10)
$0.884(exc. GST)
Clipsal Electrical 3 Phase Surge Protector, 40kA, 415V ac, DIN Rail Mount
  • RS Stock No. 282-3006
  • Mfr. Part No. MX9SP340
Each
$341.65(exc. GST)
Clipsal Electrical MAX9 MX9MC MCB, 1P, 2A, 415V AC, 6000 A Breaking Capacity
  • RS Stock No. 282-2923
  • Mfr. Part No. MX9MC102
Each
$7.56(exc. GST)
RS PRO 10A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6057
Each (In a Pack of 10)
$0.822(exc. GST)
RS PRO 2.5A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 611-0260
Each (In a Pack of 10)
$2.479(exc. GST)
Better World
Schneider Electric Earthing Strap Tinned Copper 155 x 17mm Diameter
  • RS Stock No. 222-3853
  • Mfr. Part No. NSYEB1516D8
Each (In a Pack of 10)
$11.575(exc. GST)
Littelfuse 1.6A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 738-2794
  • Mfr. Part No. 021801.6MXP
Each (In a Pack of 10)
$1.389(exc. GST)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 100A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9718
  • Mfr. Part No. LV510307
Each
$319.34(exc. GST)
Mersen NH Fuse Puller, Sizes 00 → 3
  • RS Stock No. 136-0623
  • Mfr. Part No. P215592 / NHHANDLE
Each
$111.90(exc. GST)
RS PRO 8A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 610-9838
Each (In a Pack of 10)
$1.369(exc. GST)
Better World
Schneider Electric Insulation accessory for use with Compact NSX, Easy Pact CVS
  • RS Stock No. 201-3601
  • Mfr. Part No. LV429517
Each
$99.62(exc. GST)
Finder 6A Rail Mount Fuse Holder for 5 x 20mm Fuse, 1P, 250V ac
  • RS Stock No. 776-1544
  • Mfr. Part No. 093.63
Each
$4.80(exc. GST)
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