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

26 of 999+
Eaton 40A Centred Tag Fuse, NH000, 500V ac
  • RS Stock No. 703-8642
  • Mfr. Part No. 40NHG000B
Each
$11.46(exc. GST)
Littelfuse 20A Inline Fuse Holder for ATO Fuse, 32V dc
  • RS Stock No. 787-4356
  • Mfr. Part No. FHAC0001ZXJG
Each
$10.87(exc. GST)
RS PRO 25A Natural Blade Car Fuse, 32V dc
  • RS Stock No. 563-475
Each (In a Pack of 10)
$1.594(exc. GST)
Eaton 32A Rail Mount Fuse Holder for F1 Fuse, 1P, 550V ac
  • RS Stock No. 415-339
  • Mfr. Part No. SC32H-D
Each
$28.69(exc. GST)
Eaton 10A British Standard Fuse, F1, 550V ac
  • RS Stock No. 413-490
  • Mfr. Part No. NSD10
Each (In a Pack of 5)
$40.142(exc. GST)
Littelfuse PC Board Non Resettable Fuse, Radial 2A, 250V ac
  • RS Stock No. 895-1681P
  • Mfr. Part No. 38212000410
Each (Supplied in a Bag)
$1.349(exc. GST)
Eaton 12A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 703-8504
  • Mfr. Part No. C10M12
Each (In a Pack of 10)
$3.852(exc. GST)
Schneider Electric Surge Arrester, 40kA, 350V ac, Clip-On Mount
  • RS Stock No. 288-7108
  • Mfr. Part No. A9L40301
Each
$1,991.32(exc. GST)
RS PRO 10A Panel Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 188-4637
Each
$7.45(exc. GST)
TE Connectivity Thermal Circuit Breaker - W28 Single Pole 32 V dc, 250V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 782-6565
  • Mfr. Part No. W28-XT1A-15
Each
$7.50(exc. GST)
Littelfuse Non-Resettable Wire Ended Fuse 1A, 125V ac
  • RS Stock No. 738-2992P
  • Mfr. Part No. 0471001.NRT1L
Each (Supplied on a Reel)
$2.024(exc. GST)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 63A Curve C, 250V DC, 20 kA Breaking Capacity
  • RS Stock No. 776-3199
  • Mfr. Part No. A9N61519
Each
$96.86(exc. GST)
Legrand Circuit breaker TX3 6000 MCB, 1P, 50A Curve C, 230V AC
  • RS Stock No. 249-5885
  • Mfr. Part No. 4 034 39
Each
$10.88(exc. GST)
Eaton 3.2A T Melamine Cartridge Fuse, 1.5 x 0.41in
  • RS Stock No. 260-746
  • Mfr. Part No. FNQ-R-3-2/10
1 Pack of 10
$1,465.28(exc. GST)
RS PRO 6A British Standard Fuse, F1, 550V ac
  • RS Stock No. 521-2905
Each (In a Pack of 5)
$11.088(exc. GST)
Better World
ABB System Pro M Compact S200M MCB, 2P, 10A Curve C, 440V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 132-071
  • Mfr. Part No. 2CDS272001R0104 S202M-C10
Each
$137.36(exc. GST)
ETA Thermal Circuit Breaker - 1170 Single Pole 28V dc Voltage Rating, 10A Current Rating
  • RS Stock No. 854-453
  • Mfr. Part No. 1170-21-10A
Each
$38.72(exc. GST)
Littelfuse 16A Panel Mount Fuse Holder for 6.3 x 32mm Fuse, 250V
  • RS Stock No. 360-7250
  • Mfr. Part No. 8160000000
Each (In a Pack of 5)
$2.952(exc. GST)
Eaton 400mA T Nickel Plated Spring Brass (Terminal) Cartridge Fuse, 0.41 x 0.41in
  • RS Stock No. 228-608
  • Mfr. Part No. FNQ-4/10
1 Pack of 10
$1,291.68(exc. GST)
ETA Thermal Circuit Breaker - 3120-N 2 Pole 50 V DC, 240 V AC Voltage Rating, 10A Current Rating
  • RS Stock No. 210-2077
  • Mfr. Part No. 3120-N526-P7T1-W01D-10A-A04011011M
Each
$144.12(exc. GST)
Results per page
1
26
1746

Related links