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

35099 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
RS PRO 30A Rail Mount Fuse Holder for 5 x 20mm Fuse, 1P, 500V
  • RS Stock No. 242-0497
Subtotal (1 bag of 10 units)
$79.77(exc. GST)
Being discontinued
RS PRO 1A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-380
Subtotal (1 pack of 10 units)
$8.20(exc. GST)
In Stock
RS PRO Rail Mount Fuse Holder
  • RS Stock No. 501-871
Subtotal (1 unit)
$28.86(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 273-0860
  • Mfr. Part No. 1658-G21-02-P10-10A
Subtotal (1 unit)
$13.47(exc. GST)
In Stock
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-3108
Subtotal (1 pack of 10 units)
$6.09(exc. GST)
In Stock
RS PRO F, T Fuse Kit
  • RS Stock No. 893-8530
Subtotal (1 unit)
$160.22(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 240 V AC, 72 V DC, 6 kA Breaking
  • RS Stock No. 790-8853
  • Mfr. Part No. A9F44110
Subtotal (1 unit)
$18.61(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 240 V AC, 72 V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Subtotal (1 unit)
$19.54(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 15A Current Rating
  • RS Stock No. 273-0882
  • Mfr. Part No. 1658-G21-02-P10-15A
Subtotal (1 unit)
$12.97(exc. GST)
Being discontinued
RS PRO 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-431
Subtotal (1 pack of 10 units)
$8.20(exc. GST)
In Stock
RS PRO 3A Resettable Fuse, 24V dc
  • RS Stock No. 279-6768
Subtotal (1 pack of 10 units)
$11.86(exc. GST)
In Stock
RS PRO 10A Inline Fuse Holder for 5x20mm Fuse, 250V
  • RS Stock No. 237-5259
Subtotal (1 unit)
$5.94(exc. GST)
In Stock
RS PRO 3A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 668-5963
Subtotal (1 pack of 10 units)
$8.56(exc. GST)
In Stock
ABB Earth & Neutral Terminal Bar for use with MCB
  • RS Stock No. 232-0026
  • Mfr. Part No. GJI2320131R0001 SZ-KLB 8
Subtotal (1 box of 1 unit)
$13.12(exc. GST)
In Stock
RS PRO 15A Blue Blade Car Fuse, 32V dc
  • RS Stock No. 563-750
Subtotal (1 pack of 10 units)
$14.25(exc. GST)
In Stock
Littelfuse 15A Screw Mount ATO Blade Fuse Block, 32V
  • RS Stock No. 250-6314
  • Mfr. Part No. 03500417TXN
Subtotal (1 unit)
$41.28(exc. GST)
In Stock
RS PRO 5A Tan Blade Car Fuse, 32V dc
  • RS Stock No. 563-778
Subtotal (1 pack of 10 units)
$17.38(exc. GST)
In Stock
RS PRO 3A Violet Blade Car Fuse, 32V dc
  • RS Stock No. 563-740
Subtotal (1 pack of 10 units)
$15.45(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 2 A, Type C, 240 V ac AC, 72 V DC, 6 kA Breaking
  • RS Stock No. 230-6651
  • Mfr. Part No. A9F44102
Subtotal (1 unit)
$18.61(exc. GST)
In Stock
Siemens ALPHA Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Subtotal (1 unit)
$48.11(exc. GST)
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