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

35111 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8853
  • Mfr. Part No. A9F44110
Subtotal (1 unit)
$21.82(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Subtotal (1 unit)
$21.82(exc. GST)
In Stock
Eaton 25 A Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-266
  • Mfr. Part No. C10G25 CYLINDRICAL FUSE 10 x 38 25A GG 500V AC
Subtotal (1 pack of 10 units)
$19.14(exc. GST)
In Stock
Staubli 500 mA FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 564-645
  • Mfr. Part No. 69.0012
Subtotal (1 unit)
$5.40(exc. GST)
In Stock
Siemens Copper Alpha 8GK Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Subtotal (1 unit)
$48.11(exc. GST)
In Stock
Siemens SENTRON 5SY7 Miniature Circuit Breaker, 1-Pole, 300 mA, Type C, 400 V ac AC, 15 kA Breaking Capacity
  • RS Stock No. 622-0238
  • Mfr. Part No. 5SY7114-7
Subtotal (1 unit)
$62.91(exc. GST)
In Stock
RS PRO Earthing Strap Stainless Steel Stainless Steel 32 mm Diameter 10 mm² Diameter 12 mm Diameter
  • RS Stock No. 390-2448
Subtotal (1 pack of 10 units)
$43.46(exc. GST)
In Stock
Littelfuse 20 A Yellow Car Fuse, 32 V dc
  • RS Stock No. 787-4136
  • Mfr. Part No. 0287020.PXCN
Subtotal (1 pack of 10 units)
$5.39(exc. GST)
In Stock
TE Connectivity 0.5 to 30 A W58 Thermal Circuit Breaker - 1-Pole, Direct, 12 A Current Rating, 1000 A, 250 V ac, 50 V dc
  • RS Stock No. 782-7962
  • Mfr. Part No. W58-XB1A4A-12
Subtotal (1 unit)
$24.06(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 25 A, Type C, 240 V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 790-8869
  • Mfr. Part No. A9F44125
Subtotal (1 unit)
$22.91(exc. GST)
Being discontinued
RS PRO 2 A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-431
Subtotal (1 pack of 10 units)
$8.20(exc. GST)
In Stock
Eaton 1 A Black Car Fuse, 32 V dc
  • RS Stock No. 849-5611
  • Mfr. Part No. BK-ATC-1
Subtotal (1 unit)
$2.83(exc. GST)
In Stock
ABB 12 Plastic Consumer Unit, 63 A IP65 MISTRAL65
  • RS Stock No. 183-3758
  • Mfr. Part No. 1SLM006500A2212
Subtotal (1 unit)
$53.86(exc. GST)
In Stock
Eaton 15 A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 848-2687
  • Mfr. Part No. ABC-15-R
Subtotal (1 unit)
$2.11(exc. GST)
In Stock
Eaton 2 A Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-177
  • Mfr. Part No. C10G2 CYLINDRICAL FUSE 10 x 38 2A GG 500V AC
Subtotal (1 pack of 10 units)
$19.34(exc. GST)
In Stock
Schurter 1.25 A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 167-7881
  • Mfr. Part No. 0001.1005
Subtotal (1 pack of 10 units)
$13.18(exc. GST)
Being discontinued
RS PRO 1 A F Glass Cartridge Fuse, 5.2 x 20 mm
  • RS Stock No. 563-380
Subtotal (1 pack of 10 units)
$8.20(exc. GST)
In Stock
Littelfuse 15 A Blue Car Fuse, 32 V dc
  • RS Stock No. 787-4120
  • Mfr. Part No. 0287015.PXCN
Subtotal (1 pack of 10 units)
$5.78(exc. GST)
In Stock
ETI 4 A D2 Diazed Fuse, E27 Thread Size, 500 V ac
  • RS Stock No. 413-636
  • Mfr. Part No. 2312402
Subtotal (1 pack of 5 units)
$22.00(exc. GST)
In Stock
RS PRO 5 A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 413-226
Subtotal (1 pack of 10 units)
$23.66(exc. GST)
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