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

35084 Products showing for Fuses & Circuit Breakers

9 of 999+
Last RS stock
TE Connectivity W57 Thermal Circuit Breaker - 1-Pole, Direct, 15 A Current Rating, 1000 A, 250 V ac, 50 V dc
  • RS Stock No. 782-7931
  • Mfr. Part No. W57-XB7A4A10-15
Subtotal (1 unit)
$6.56(exc. GST)
In Stock
ABB PS1 PS 1 Phase Busbar, 400 V ac, 17.5 mm Pitch
  • RS Stock No. 489-6568
  • Mfr. Part No. 2CDL210001R1060 - PS1/60
Subtotal (1 unit)
$53.12(exc. GST)
In Stock
RS PRO 200 mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9872
Subtotal (1 pack of 10 units)
$11.01(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
RS PRO 15 A Blue Car Fuse, 32 V dc
  • RS Stock No. 563-570
Subtotal (1 pack of 10 units)
$3.99(exc. GST)
In Stock
Phoenix Contact Copper CLIPLINE FBS Busbar, 6.2 mm Pitch
  • RS Stock No. 627-3406
  • Mfr. Part No. 3030271
Subtotal (1 pack of 5 units)
$49.78(exc. GST)
In Stock
Better World
Schneider Electric - Easy Series, EasyPact CVS100, Easypact CVS Circuit Breaker 3-Pole 100 A, Breaking Capacity 25 kA
  • RS Stock No. 260-9718
  • Mfr. Part No. LV510307
Subtotal (1 unit)
$834.30(exc. GST)
In Stock
Littelfuse 30 A Rail Mount Fuse Holder for 10 x 38 mm, 1P-Pole, 600 V ac
  • RS Stock No. 769-3772
  • Mfr. Part No. L60030M1SQ
Subtotal (1 unit)
$17.88(exc. GST)
In Stock
RS PRO 20 A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 247-3983
Subtotal (1 pack of 10 units)
$26.88(exc. GST)
In Stock
RS PRO 1 A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 668-5966
Subtotal (1 pack of 10 units)
$8.56(exc. GST)
In Stock
Littelfuse Non-Resettable Fuse 10 A, 125 V ac/dc
  • RS Stock No. 541-3467
  • Mfr. Part No. 0451010.MRL
Subtotal (1 pack of 10 units)
$32.34(exc. GST)
In Stock
Littelfuse Non-Resettable Fuse 2 A, 125 V ac/dc
  • RS Stock No. 541-3401
  • Mfr. Part No. 0451002.MRL
Subtotal (1 pack of 10 units)
$22.56(exc. GST)
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)
$102.80(exc. GST)
In Stock
Eaton 3.15 A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1155
  • Mfr. Part No. S500-3.15-R
Subtotal (1 pack of 10 units)
$6.34(exc. GST)
In Stock
RS PRO 1.6 A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 247-4009
Subtotal (1 pack of 10 units)
$27.98(exc. GST)
In Stock
RS PRO 800 mA F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-368
Subtotal (1 pack of 10 units)
$6.15(exc. GST)
In Stock
Eaton 25 A AM Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-105
  • Mfr. Part No. C10M25 CYLINDRICAL FUSE 10 x 38 25A AM 400V AC
Subtotal (1 pack of 10 units)
$23.85(exc. GST)
Limited stock
Siemens SENTRON 5SY6 Miniature Circuit Breaker, 1-Pole, 2 A, Type C, 400 V ac AC, 60 V dc DC, 6 kA Breaking Capacity
  • RS Stock No. 521-4939
  • Mfr. Part No. 5SY6102-7
Subtotal (1 unit)
$29.06(exc. GST)
In Stock
Better World
Schneider Electric - Easy Series, EasyPact CVS100, EasyPact CVS100-250 Circuit Breaker 3-Pole 100 A, Breaking Capacity
  • RS Stock No. 260-9716
  • Mfr. Part No. LV510305
Subtotal (1 unit)
$227.15(exc. GST)
In Stock
Schurter 100 mA F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 777-7467
  • Mfr. Part No. 0034.1506
Subtotal (1 pack of 10 units)
$13.97(exc. GST)
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