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

35440 Products showing for Fuses & Circuit Breakers

7 of 999+
In Stock
Eaton 16A British Standard Fuse A1 550V ac, 44.5 mm
  • RS Stock No. 414-639
  • Mfr. Part No. NIT16
Subtotal (1 pack of 5 units)
$83.04(exc. GST)
$16.608/unit
In Stock
SIBA 5A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 783-3374
  • Mfr. Part No. 70-059-60/5A
Subtotal (1 pack of 10 units)
$4.34(exc. GST)
$0.434/unit
Limited stock
Eaton 2A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1341
  • Mfr. Part No. S506-2-R
Subtotal (1 pack of 10 units)
$4.89(exc. GST)
$0.489/unit
In Stock
SIBA 500mA FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 736-1416
  • Mfr. Part No. 70-172-40/0.5A
Subtotal (1 unit)
$18.33(exc. GST)
$18.33/unit
Temporarily out of stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 6A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6656
  • Mfr. Part No. A9F44206
Subtotal (1 unit)
$74.68(exc. GST)
$74.68/unit
In Stock
TE Connectivity 0.5 to 30 A W58 Thermal Circuit Breaker - 1-Pole, Direct, 3A Current Rating, 1000 A, 250V ac, 50 V dc
  • RS Stock No. 782-8029
  • Mfr. Part No. W58-XB1A4A-3
Subtotal (1 unit)
$23.87(exc. GST)
$23.87/unit
Stocked by manufacturer
Schneider Electric, ComPact, ComPacT NSX Molded Case Circuit Breaker 3-Pole 630A, Breaking Capacity 36 kA
  • RS Stock No. 260-8199
  • Mfr. Part No. C63F32D630
Subtotal (1 unit)
$5,979.39(exc. GST)
$5,979.39/unit
In Stock
Eaton 160A British Standard Fuse B2 660V ac, 111 mm
  • RS Stock No. 415-288
  • Mfr. Part No. TF160
Subtotal (1 unit)
$237.80(exc. GST)
$237.80/unit
In Stock
RS PRO Non-Resettable Fuse, Pig Tail 5 A, 250 V ac
  • RS Stock No. 911-3565
Subtotal (1 pack of 10 units)
$5.50(exc. GST)
$0.55/unit
Temporarily out of stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 4A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6655
  • Mfr. Part No. A9F44204
Subtotal (1 unit)
$74.68(exc. GST)
$74.68/unit
In Stock
RS PRO 4A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-407
Subtotal (1 pack of 10 units)
$10.09(exc. GST)
$1.009/unit
In Stock
RS PRO 5A T Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-693
Subtotal (1 pack of 10 units)
$17.88(exc. GST)
$1.788/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 10A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6657
  • Mfr. Part No. A9F44210
Subtotal (1 unit)
$74.68(exc. GST)
$74.68/unit
In Stock
RS PRO 20A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 247-3983
Subtotal (1 pack of 10 units)
$27.69(exc. GST)
$2.769/unit
In Stock
Littelfuse 25A White Car Fuse, 32V dc
  • RS Stock No. 787-4154
  • Mfr. Part No. 0287025.PXCN
Subtotal (1 pack of 10 units)
$6.87(exc. GST)
$0.687/unit
In Stock
Schneider Electric Residual Current Circuit Breaker with Overload Protection, 16 A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 230-6646
  • Mfr. Part No. A9D61816
Subtotal (1 unit)
$105.88(exc. GST)
$105.88/unit
In Stock
RS PRO 500mA F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 209-9276
Subtotal (1 pack of 10 units)
$37.36(exc. GST)
$3.736/unit
In Stock
Phoenix Contact CLIPLINE Clipline Thermal Circuit Breaker - 1-Pole, DIN Rail, 4A Current Rating, 250V ac, 28 V dc
  • RS Stock No. 684-3597
  • Mfr. Part No. 0916606
Subtotal (1 unit)
$49.10(exc. GST)
$49.10/unit
Limited stock
Eaton 2A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1177
  • Mfr. Part No. S500-2-R
Subtotal (1 pack of 10 units)
$7.13(exc. GST)
$0.713/unit
In Stock
Better World
Schneider Electric Cover for use with Linergy FH Horizontal Comb Busbar
  • RS Stock No. 776-2821
  • Mfr. Part No. A9XPE110
Subtotal (1 unit)
$24.33(exc. GST)
$24.33/unit
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