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

35393 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Clipsal Electrical Residual Current Circuit Breaker with Overload Protection, 10A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 282-2969
  • Mfr. Part No. MX9R3110
Subtotal (1 unit)
$69.88(exc. GST)
In Stock
Mersen 10A Fast Acting Glass Cartridge Fuse, 6 x 32 mm
  • RS Stock No. 270-3035
  • Mfr. Part No. F090579 / MI6SF6V10
Subtotal (1 box of 10 units)
$13.31(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6653
  • Mfr. Part No. A9F44120
Subtotal (1 unit)
$19.17(exc. GST)
In Stock
RS PRO 4A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 247-3961
Subtotal (1 pack of 10 units)
$19.28(exc. GST)
In Stock
Littelfuse Non-Resettable Fuse, Radial 3.15 A, 250 V ac
  • RS Stock No. 895-1678P
  • Mfr. Part No. 37213150411
Subtotal 10 units (supplied in a bag)
$14.20(exc. GST)
In Stock
Eaton 8A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 852-7092
  • Mfr. Part No. MDA-8-R
Subtotal (1 unit)
$12.08(exc. GST)
In Stock
Schurter 250mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 167-7538
  • Mfr. Part No. 0034.3111
Subtotal (1 pack of 10 units)
$8.48(exc. GST)
In Stock
Schurter 0.5A T Ceramic Cartridge Fuse, 6.35 x 32 mm
  • RS Stock No. 269-3865
  • Mfr. Part No. 8020.5008
Subtotal (1 unit)
$1.43(exc. GST)
In Stock
Littelfuse 1.5A T Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 541-3013
  • Mfr. Part No. 031301.5MXP
Subtotal (1 pack of 10 units)
$20.39(exc. GST)
Limited stock
Phoenix Contact TCP 1A Thermal Circuit Breaker - 1-Pole, On Base Element, 1A Current Rating, 250V ac, 65 V dc
  • RS Stock No. 801-6892
  • Mfr. Part No. 0712194
Subtotal (1 unit)
$37.67(exc. GST)
In Stock
RS PRO 30 A In-line Fuse Holder for 19 x 18.6 mm, 32 V dc
  • RS Stock No. 284-6489
Subtotal (1 pack of 5 units)
$70.32(exc. GST)
In Stock
RS PRO 80A British Standard Fuse A4 550V ac, 94 mm
  • RS Stock No. 521-2696
Subtotal (1 unit)
$46.69(exc. GST)
Last RS stock
TE Connectivity W57 Thermal Circuit Breaker - 1-Pole, Direct, 15A Current Rating, 1000 A, 250V ac, 50 V dc
  • RS Stock No. 782-7931
  • Mfr. Part No. W57-XB7A4A10-15
Subtotal (1 unit)
$6.77(exc. GST)
In Stock
Legrand 32A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 293-8250
  • Mfr. Part No. 0 133 32
Subtotal (1 pack of 10 units)
$75.80(exc. GST)
In Stock
RS PRO 5A T Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 911-3423
Subtotal (1 pack of 10 units)
$4.58(exc. GST)
Currently unavailable
Clipsal Electrical Residual Current Circuit Breaker with Overload Protection, 6A Current Rating, 1-Pole, 30 mA Trip
  • RS Stock No. 282-2968
  • Mfr. Part No. MX9R3106
Subtotal (1 unit)
$66.38(exc. GST)
In Stock
Eaton 100A Ceramic Cartridge Fuse, 23 x 57 mm
  • RS Stock No. 182-1625
  • Mfr. Part No. 100KR85
Subtotal (1 unit)
$19.41(exc. GST)
In Stock
ETA 1658 Thermal Circuit Breaker - 1-Pole, Panel, 5A Current Rating, 25 A, 250V ac, 28 V dc
  • RS Stock No. 273-0854
  • Mfr. Part No. 1658-G21-02-P10-5A
Subtotal (1 unit)
$13.70(exc. GST)
In Stock
Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 2-Pole, 4A, Type C, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7703
  • Mfr. Part No. 2CDS252001R0044 S202-C4
Subtotal (1 unit)
$122.79(exc. GST)
In Stock
Littelfuse Non-Resettable Fuse, Axial 3 A, 125 V ac/dc
  • RS Stock No. 541-3293
  • Mfr. Part No. 0251003.NRT1L
Subtotal (1 pack of 10 units)
$17.60(exc. GST)
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