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

35264 Products showing for Fuses & Circuit Breakers

11 of 999+
In Stock
Eaton 10A Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 703-8500
  • Mfr. Part No. C10M10
Subtotal (1 pack of 10 units)
$23.05(exc. GST)
$2.305/unit
In Stock
Better World
ABB System Pro M Compact S200 Miniature Circuit Breaker, 3-Pole, 50A, Type D, 440V ac AC, 12 V dc DC, 6 kA Breaking
  • RS Stock No. 527-9661
  • Mfr. Part No. 2CDS253001R0501 S203-D50
Subtotal (1 unit)
$160.43(exc. GST)
$160.43/unit
In Stock
Siemens SIRIUS 3RV1 3 Phase Busbar, 690 V, 45 mm Pitch
  • RS Stock No. 246-5162
  • Mfr. Part No. 3RV1915-1DB
Subtotal (1 unit)
$109.51(exc. GST)
$109.51/unit
In Stock
Littelfuse Non-Resettable Fuse 2A, 125V ac/dc
  • RS Stock No. 541-3631
  • Mfr. Part No. 0452002.MRL
Subtotal (1 pack of 10 units)
$27.92(exc. GST)
$2.792/unit
In Stock
Littelfuse 8A F Ceramic Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 541-4555
  • Mfr. Part No. 0216008.MXP
Subtotal (1 pack of 10 units)
$20.39(exc. GST)
$2.039/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)
$8.56(exc. GST)
$0.856/unit
In Stock
Deltron Earthing Strap 2.5 mm² Diameter 2.5 mm² Diameter
  • RS Stock No. 181-1266
  • Mfr. Part No. 4ELM4
Subtotal (1 unit)
$11.80(exc. GST)
$11.80/unit
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 2-Pole, 10A, Type C, 440V ac AC, 133 V dc DC, 6 kA Breaking
  • RS Stock No. 230-6657
  • Mfr. Part No. A9F44210
Subtotal (1 unit)
$72.50(exc. GST)
$72.50/unit
In 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)
$669.95(exc. GST)
$133.99/unit
In Stock
Better World
Schneider Electric Acti9 Acti9 C120 Miniature Circuit Breaker, 3-Pole, 100A, Type C, 440V ac AC, 375 V dc DC, 10 kA
  • RS Stock No. 776-3073
  • Mfr. Part No. A9N18367
Subtotal (1 unit)
$329.50(exc. GST)
$329.50/unit
Stocked by manufacturer
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 20A, Type C, 240V ac AC, 72 V dc DC, 15 kA Breaking
  • RS Stock No. 435-915
  • Mfr. Part No. A9F44120
Subtotal (1 unit)
$29.88(exc. GST)
$29.88/unit
In Stock
RS PRO Non-Resettable Fuse, Radial 2 A, 250 V ac
  • RS Stock No. 767-5055
Subtotal (1 pack of 10 units)
$4.27(exc. GST)
$0.427/unit
In Stock
Better World
Schneider Electric Cover for use with Linergy FH Horizontal Comb Busbar
  • RS Stock No. 776-2831
  • Mfr. Part No. A9XPT920
Subtotal (1 unit)
$30.31(exc. GST)
$30.31/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)
$10.98(exc. GST)
$1.098/unit
In Stock
Schurter 0.5A T Ceramic Cartridge Fuse, 6.35 x 32 mm
  • RS Stock No. 269-3865
  • Mfr. Part No. 8020.5008
Subtotal (1 unit)
$1.43(exc. GST)
$1.43/unit
In Stock
Eaton 1A T Glass Cartridge Fuse, 5 x 20 mm
  • RS Stock No. 537-1379
  • Mfr. Part No. S506-1-R
Subtotal (1 pack of 10 units)
$5.65(exc. GST)
$0.565/unit
In Stock
Littelfuse 1A Black Car Fuse, 32V dc
  • RS Stock No. 787-4110
  • Mfr. Part No. 0287001.PXCN
Subtotal (1 pack of 10 units)
$5.28(exc. GST)
$0.528/unit
In Stock
Legrand 32A GG Ceramic Cartridge Fuse, 10 x 38 mm
  • RS Stock No. 293-8250
  • Mfr. Part No. 0 133 32
Subtotal (1 pack of 10 units)
$71.38(exc. GST)
$7.138/unit
In Stock
RS PRO 200A British Standard Fuse B2 415V ac, 111 mm
  • RS Stock No. 521-2775
Subtotal (1 unit)
$83.81(exc. GST)
$83.81/unit
In Stock
Better World
Schneider Electric TeSys Handle Mounting Tool for use with TeSys GV-U
  • RS Stock No. 211-2540
  • Mfr. Part No. GVAPL01
Subtotal (1 unit)
$213.20(exc. GST)
$213.20/unit
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