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

35440 Products showing for Fuses & Circuit Breakers

6 of 999+
In Stock
RS PRO 15A Blue Car Fuse, 32V dc
  • RS Stock No. 563-570
Subtotal (1 pack of 10 units)
$4.11(exc. GST)
$0.411/unit
In Stock
Mersen 32A Rail Mount Fuse Holder for 10 x 38 mm, 1P-Pole, 690V ac
  • RS Stock No. 189-5333
  • Mfr. Part No. P1062705 / CMC101
Subtotal (1 unit)
$15.62(exc. GST)
$15.62/unit
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9556
  • Mfr. Part No. 00940957XXN
Subtotal (1 unit)
$111.36(exc. GST)
$111.36/unit
In Stock
Eaton 16A gG/gL Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 229-265
  • Mfr. Part No. C10G16 CYLINDRICAL FUSE 10 x 38 16A GG 500V AC
Subtotal (1 pack of 10 units)
$19.73(exc. GST)
$19.73/pack
In Stock
Schurter 0.8A F Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 269-3872
  • Mfr. Part No. 8020.5067
Subtotal (1 unit)
$3.45(exc. GST)
$3.45/unit
In Stock
Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 3-Pole, 25A, Type K, 400V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-8037
  • Mfr. Part No. 2CDS253001R0517 S203-K25
Subtotal (1 unit)
$255.00(exc. GST)
$255.00/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 4A, Type C, 240V ac AC, 72 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6652
  • Mfr. Part No. A9F44104
Subtotal (1 unit)
$19.17(exc. GST)
$19.17/unit
Temporarily out of stock
RS PRO 5A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 668-5975
Subtotal (1 pack of 10 units)
$8.82(exc. GST)
$0.882/unit
In Stock
Eaton 1A Bolt Fixing Photovoltaic Fuse 10 x 38 mm 1000V dc, 49.7 mm
  • RS Stock No. 703-8248
  • Mfr. Part No. PV-1A10-T
Subtotal (1 unit)
$118.61(exc. GST)
$118.61/unit
In Stock
Better World
Schneider Electric Acti9 iC60H Miniature Circuit Breaker, 1-Pole, 1A, Type B, 240V ac AC, 48 V dc DC, 10 kA Breaking
  • RS Stock No. 791-3142
  • Mfr. Part No. A9F53101
Subtotal (1 unit)
$89.38(exc. GST)
$89.38/unit
In Stock
RS PRO 3A F Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 668-5963
Subtotal (1 pack of 10 units)
$8.82(exc. GST)
$0.882/unit
In Stock
TE Connectivity 0.5 to 30 A W58 Thermal Circuit Breaker - 1-Pole, Direct, 12A Current Rating, 1000 A, 250V ac, 50 V dc
  • RS Stock No. 782-7962
  • Mfr. Part No. W58-XB1A4A-12
Subtotal (1 unit)
$24.66(exc. GST)
$24.66/unit
In Stock
RS PRO 2A FF Ceramic Cartridge Fuse, 6.3 x 32 mm
  • RS Stock No. 420-167
Subtotal (1 pack of 10 units)
$32.56(exc. GST)
$3.256/unit
In Stock
SIBA 100mA F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 783-3201
  • Mfr. Part No. 70-007-33/0.1A
Subtotal (1 pack of 10 units)
$11.76(exc. GST)
$1.176/unit
In Stock
Mersen 10A AM Ceramic Cartridge Fuse, 8.5 x 31.5 mm
  • RS Stock No. 247-2929
  • Mfr. Part No. W201292 / FR8AM40V10
Subtotal (1 box of 10 units)
$29.51(exc. GST)
$29.51/box
In Stock
Better World
Schneider Electric Connector Support for use with Circuit Breaker
  • RS Stock No. 221-1248
  • Mfr. Part No. LV432525
Subtotal (1 unit)
$76.32(exc. GST)
$76.32/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)
$78.53(exc. GST)
$78.53/unit
In Stock
Eaton 1A Black Car Fuse, 32V dc
  • RS Stock No. 849-5611
  • Mfr. Part No. BK-ATC-1
Subtotal (1 unit)
$3.01(exc. GST)
$3.01/unit
In Stock
ETA Cover
  • RS Stock No. 150-063
  • Mfr. Part No. X201.285.01 3/8"106CLEARCOVER+NUT
Subtotal (1 unit)
$15.85(exc. GST)
$15.85/unit
In Stock
RS PRO Earthing Kit
  • RS Stock No. 528-983
Subtotal (1 unit)
$53.46(exc. GST)
$53.46/unit
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