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

169 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4127
  • Mfr. Part No. 3VA2116-8HN32-0AA0
Each
$3,857.45(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 6A Current Rating
  • RS Stock No. 344-5327
  • Mfr. Part No. 1658-G21-02-P10-6A
Each
$12.39(exc. GST)
Temporarily out of stock
Phoenix Contact Thermal Circuit Breaker - TMC 1 Single Pole 65 V dc, 250V ac Voltage Rating DIN Rail Mount, 16A
  • RS Stock No. 801-7003
  • Mfr. Part No. 0914183
Each
$169.00(exc. GST)
Temporarily out of stock
ABB 10A Tag Fuse, 79 x 21 x 53mm, 500V
  • RS Stock No. 250-4355
  • Mfr. Part No. 1SCA022652R0610
1 Box of 3
$70.49(exc. GST)
Temporarily out of stock
Eaton 63A Cartridge Fuse, 25 x 110mm
  • RS Stock No. 228-785
  • Mfr. Part No. CEO63
1 Pack of 10
$851.14(exc. GST)
Limited stock
Limitor Fuse Clip
  • RS Stock No. 204-7629
  • Mfr. Part No. CLIP C BUGEL
Each (In a Pack of 10)
$1.373(exc. GST)
Temporarily out of stock
40A Cartridge Fuse, 76 x 537mm
  • RS Stock No. 263-455
  • Mfr. Part No. 36TFQSJ40 36KV 40A 3" DIN Resin Seal Fuse
Each
$1,000.67(exc. GST)
In Stock
RS PRO 7A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3439
Each (In a Pack of 10)
$0.637(exc. GST)
In Stock
Littelfuse 200A Base Mount Fuse Holder for BF1 Fuse, 32V dc
  • RS Stock No. 548-9183
  • Mfr. Part No. 04980900ZXT
Each
$21.78(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 1.6kA 1SDA07, 3 channels
  • RS Stock No. 259-4214
  • Mfr. Part No. 1SDA072334R1
Each
$12,266.08(exc. GST)
In Stock
ABB Tmax T Undervoltage Release for use with T4, T5, T6 Circuit Breakers
  • RS Stock No. 225-5860
  • Mfr. Part No. 1SDA054891R1 UVR-C 230VAC/DC T4-6
Each
$472.93(exc. GST)
Temporarily out of stock
Siemens SENTRON Universal Release for use with 3VA1 and 3VA20-26
  • RS Stock No. 155-338
  • Mfr. Part No. 3VA9908-0BD13
Each
$731.83(exc. GST)
In Stock
Legrand 20A M Ceramic Cartridge Fuse, 14 x 51mm
  • RS Stock No. 266-3115
  • Mfr. Part No. 0 140 20
1 Box of 10
$84.34(exc. GST)
In Stock
RS PRO 6.3A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3473
Each (In a Pack of 10)
$0.40(exc. GST)
In Stock
SIBA 160A NH Fuse, NH00, 500V ac
  • RS Stock No. 421-609
  • Mfr. Part No. 20-001-04/160A
Each
$83.57(exc. GST)
Temporarily out of stock
Schneider Electric Acti 9 iC60H MCB, 2P, 16A Curve C
  • RS Stock No. 230-6673
  • Mfr. Part No. A9F54216
Each
$200.23(exc. GST)
In Stock
Eaton 16A British Standard Fuse, A1, 550V ac, 44.5mm
  • RS Stock No. 414-639
  • Mfr. Part No. NIT16
Each (In a Pack of 5)
$17.736(exc. GST)
In Stock
Littelfuse 60A Inline Fuse Holder for Maxi Fuse, 32V dc
  • RS Stock No. 250-6285
  • Mfr. Part No. 01520001TXN
Each
$30.49(exc. GST)
In Stock
Eaton 4A Ceramic Cartridge Fuse, 22 x 58mm
  • RS Stock No. 703-8447
  • Mfr. Part No. C22G4
Each (In a Pack of 10)
$10.065(exc. GST)
In Stock
SIBA 6.3A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 783-3254
  • Mfr. Part No. 70-007-33/6.3A
Each (In a Pack of 10)
$0.449(exc. GST)
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