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

5 of 999+
RS PRO 3.15A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-699
Each (In a Pack of 10)
$2.426(exc. GST)
RS PRO Three Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-736
Each
$227.99(exc. GST)
RS PRO 6.3A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-396
Each (In a Pack of 10)
$1.00(exc. GST)
RS PRO 1A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 414-027
Each (In a Pack of 10)
$2.369(exc. GST)
Better World
RS PRO 30A F Ceramic Solar PV Cartridge Fuse, 10 x 38mm
  • RS Stock No. 239-4984
Each (In a Pack of 10)
$18.362(exc. GST)
Schneider Electric Acti 9 iC60N MCB, 2P, 6A Curve C
  • RS Stock No. 230-6656
  • Mfr. Part No. A9F44206
Each
$72.50(exc. GST)
Littelfuse 15A Screw Mount ATO Blade Fuse Block, 32V
  • RS Stock No. 250-6314
  • Mfr. Part No. 03500417TXN
Each
$41.28(exc. GST)
RS PRO 12A M Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 182-4004
Each (In a Pack of 5)
$10.564(exc. GST)
RS PRO 1.25A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-384
Each (In a Pack of 10)
$0.299(exc. GST)
Littelfuse 50mA F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-4246
  • Mfr. Part No. 0217.050MXP
Each (In a Pack of 10)
$3.183(exc. GST)
Littelfuse 160A Grey, White Fuse Strips Car Fuse, 48V dc
  • RS Stock No. 226-0917
  • Mfr. Part No. 157.5701.6161
Each
$17.39(exc. GST)
Schneider Electric ACTI9 IC60N MCB, 2P, 20A Curve C, 415V AC, 125V DC, 440 Breaking Capacity
  • RS Stock No. 435-916
  • Mfr. Part No. A9F44220
Each
$73.45(exc. GST)
Eaton 2A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 489-4405
  • Mfr. Part No. C10G2
Each (In a Pack of 10)
$2.837(exc. GST)
RS PRO 800mA T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-554
Each (In a Pack of 10)
$0.812(exc. GST)
Mersen 2A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-6956
  • Mfr. Part No. D213098
Each (In a Pack of 10)
$4.331(exc. GST)
Clipsal Electrical MAX9 MX9MC MCB, 1P, 6A, 415V AC, 6000 A Breaking Capacity
  • RS Stock No. 282-2926
  • Mfr. Part No. MX9MC106
Each
$7.56(exc. GST)
Eaton 2A gG/gL Cartridge Fuse, 10 x 38mm
  • RS Stock No. 229-177
  • Mfr. Part No. C10G2 CYLINDRICAL FUSE 10 x 38 2A GG 500V AC
1 Pack of 10
$19.34(exc. GST)
RS PRO 16A Rail Mount Fuse Holder, 600V ac
  • RS Stock No. 501-809
Each (In a Pack of 10)
$13.868(exc. GST)
TE Connectivity Thermal Circuit Breaker - W57 Single Pole 250V ac Voltage Rating, 10A Current Rating
  • RS Stock No. 782-0867
  • Mfr. Part No. W57-XB7A4A10-10
Each
$4.36(exc. GST)
Littelfuse 15A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-4599
  • Mfr. Part No. 0218015.MXP
Each (In a Pack of 10)
$2.567(exc. GST)
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