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

Fuses - PCB
Fuses - PCB

35308 Products showing for Fuses & Circuit Breakers

1 of 999+
Limited stock
Eaton 440mA F Melamine Cartridge Fuse, 10 x 35 mm
  • RS Stock No. 459-7918
  • Mfr. Part No. DMM-B-44-100-R
Subtotal (1 pack of 5 units)
$846.29(exc. GST)
$169.258/unit
In Stock
Eaton 12A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8504
  • Mfr. Part No. C10M12
Subtotal (1 pack of 10 units)
$45.12(exc. GST)
$4.512/unit
In Stock
RS PRO 100mA T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 610-9850
Subtotal (1 pack of 10 units)
$18.90(exc. GST)
$1.89/unit
In Stock
Eaton 30A T Cartridge Fuse, 21 x 57 mm
  • RS Stock No. 773-3546
  • Mfr. Part No. LPJ-30SP
Subtotal (1 unit)
$219.91(exc. GST)
$219.91/unit
In Stock
RS PRO 3.15A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-441
Subtotal (1 pack of 10 units)
$2.67(exc. GST)
$0.267/unit
In Stock
RS PRO 16A T Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 209-9311
Subtotal (1 pack of 10 units)
$59.63(exc. GST)
$5.963/unit
Stocked by manufacturer
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 1A, Type C, 240V ac AC, 72 V dc DC, 50 kA Breaking
  • RS Stock No. 435-913
  • Mfr. Part No. A9F44101
Subtotal (1 unit)
$37.75(exc. GST)
$37.75/unit
In Stock
Mersen 30A T Fibreglass Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 914-4389
  • Mfr. Part No. ATQR30
Subtotal (1 unit)
$73.92(exc. GST)
$73.92/unit
Temporarily out of stock
Littelfuse 30A T Paper Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 878-3930
  • Mfr. Part No. 0FLM030.T
Subtotal (1 unit)
$29.35(exc. GST)
$29.35/unit
In Stock
SIBA 6.3A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 783-3254
  • Mfr. Part No. 70-007-33/6.3A
Subtotal (1 pack of 10 units)
$5.97(exc. GST)
$0.597/unit
Being discontinued
RS PRO 1A F Glass Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 177-8103
Subtotal (1 pack of 50 units)
$29.80(exc. GST)
$0.596/unit
In Stock
Eaton 40A T Cartridge Fuse, 25 x 60 mm
  • RS Stock No. 773-3555
  • Mfr. Part No. LPJ-40SP
Subtotal (1 unit)
$316.59(exc. GST)
$316.59/unit
In Stock
RS PRO Fuse Kit
  • RS Stock No. 541-3108
Subtotal (1 pack of 10 units)
$7.69(exc. GST)
$0.769/unit
In Stock
Littelfuse 440mA F Ceramic Cartridge Fuse, 10 x 35 mm
  • RS Stock No. 738-3194
  • Mfr. Part No. 0FLU.440T
Subtotal (1 unit)
$99.20(exc. GST)
$99.20/unit
In Stock
RS PRO 500mA F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-328
Subtotal (1 pack of 10 units)
$5.37(exc. GST)
$0.537/unit
Being discontinued
RS PRO 1.6A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 563-728
Subtotal (1 pack of 10 units)
$12.25(exc. GST)
$1.225/unit
In Stock
Mersen 10A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 188-6984
  • Mfr. Part No. S218194 / FR10GG50V10
Subtotal (1 pack of 10 units)
$60.32(exc. GST)
$6.032/unit
In Stock
Mersen 125A NH Fuse NH00 500V ac
  • RS Stock No. 375-9626
  • Mfr. Part No. R201863 / NH00GG50V125
Subtotal (1 pack of 3 units)
$96.60(exc. GST)
$32.20/unit
In Stock
RS PRO 20A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 180-071
Subtotal (1 pack of 10 units)
$57.41(exc. GST)
$57.41/pack
In Stock
RS PRO 3A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 668-5963
Subtotal (1 pack of 10 units)
$10.82(exc. GST)
$1.082/unit
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