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

8 of 999+
In Stock
Littelfuse 500 mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4347
  • Mfr. Part No. 0217.500MXP
Subtotal (1 pack of 10 units)
$8.23(exc. GST)
In Stock
RS PRO 30A Inline Fuse Holder for ATO/ATC 19x18.6mm Fuse, 32V dc
  • RS Stock No. 237-5265
Subtotal (1 unit)
$13.39(exc. GST)
In Stock
Mersen 100 A FF Ceramic Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 136-0643
  • Mfr. Part No. F1018629 / FR22GR69V100T
Subtotal (1 unit)
$92.80(exc. GST)
In Stock
RS PRO 10 A T Ceramic Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-592
Subtotal (1 pack of 10 units)
$18.56(exc. GST)
In Stock
SIBA 50 A Ceramic Cartridge Fuse, 14 x 51 mm
  • RS Stock No. 768-6096
  • Mfr. Part No. 5012406.5
Subtotal (1 unit)
$40.37(exc. GST)
In Stock
RS PRO 1 A T Ceramic Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 177-8097
Subtotal (1 pack of 5 units)
$16.40(exc. GST)
In Stock
Eaton 8 A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 181-8880
  • Mfr. Part No. C10M8
Subtotal (1 unit)
$3.68(exc. GST)
In Stock
RS PRO 10 A Red Car Fuse, 32 V
  • RS Stock No. 563-744
Subtotal (1 pack of 10 units)
$17.04(exc. GST)
In Stock
ETA ESX10 ESX10-T Electronic Circuit Breaker 24 V, 1 channels, Plug-in
  • RS Stock No. 723-4843
  • Mfr. Part No. ESX10-TB-101-DC24V-2A
Subtotal (1 unit)
$93.51(exc. GST)
In Stock
ABB Residual Current Circuit Breaker with Overload Protection, 32 A Current Rating, 1-Pole, 30 mA Trip Sensitivity, Type
  • RS Stock No. 914-4070
  • Mfr. Part No. 2CSR255051R1325 DSE201 B32 AC30 - N Blue
Subtotal (1 unit)
$165.52(exc. GST)
In Stock
Eaton 63A British Standard Fuse, A3, 660V ac, 73mm
  • RS Stock No. 415-222
  • Mfr. Part No. TIS63
Subtotal (1 unit)
$48.12(exc. GST)
In Stock
Eaton 440 mA F Melamine Cartridge Fuse, 10 x 35 mm
  • RS Stock No. 459-7918
  • Mfr. Part No. DMM-B-44-100-R
Subtotal (1 pack of 5 units)
$669.95(exc. GST)
In Stock
ABB 125A Centred Tag Fuse, NH00, 500V
  • RS Stock No. 779-9987
  • Mfr. Part No. OFAF00H125 1SCA022627R1630
Subtotal (1 unit)
$17.82(exc. GST)
In Stock
ABB Plastic Consumer Unit, 125 A, IEC 60670, EN 60439-3 IP65 MISTRAL65
  • RS Stock No. 811-1919
  • Mfr. Part No. 1SL1209A00 65P18X42
Subtotal (1 unit)
$196.16(exc. GST)
In Stock
Eaton NZM Door Coupling Handle for use with N(S)1, NZM1
  • RS Stock No. 240-428
  • Mfr. Part No. 100675 NZM1-XTVDV-0-NA
Subtotal (1 unit)
$223.36(exc. GST)
In Stock
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 4-Pole, 2 A, Type C, 12 V, 133 V, 220 V, 240 V, 380 V, 415 V,
  • RS Stock No. 791-3411
  • Mfr. Part No. A9F54402
Subtotal (1 unit)
$206.00(exc. GST)
In Stock
Eaton 6 A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8374
  • Mfr. Part No. C10G6
Subtotal (1 pack of 10 units)
$30.08(exc. GST)
In Stock
RS PRO 2 A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-413
Subtotal (1 pack of 10 units)
$16.71(exc. GST)
In Stock
Eaton 100 A AM Ceramic Cartridge Fuse, 22 x 58 mm
  • RS Stock No. 228-849
  • Mfr. Part No. C22M100 CYLINDRICAL FUSE 22 x 58 100A AM 500V AC
Subtotal (1 pack of 10 units)
$83.98(exc. GST)
Limited stock
RS PRO 5A Inline Fuse Holder for 5x20mm Fuse, 250V
  • RS Stock No. 284-6487
Subtotal (1 pack of 10 units)
$51.59(exc. GST)
1
8
1748
Results per page

Related links