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

34968 Products showing for Fuses & Circuit Breakers

3 of 999+
In Stock
  • RS Stock No. 914-4070
  • Mfr. Part No. 2CSR255051R1325 DSE201 B32 AC30 - N Blue
Subtotal (1 unit)
$165.52(exc. GST)
In Stock
  • RS Stock No. 229-266
  • Mfr. Part No. C10G25 CYLINDRICAL FUSE 10 x 38 25A GG 500V AC
Subtotal (1 pack of 10 units)
$19.14(exc. GST)
In Stock
  • RS Stock No. 228-663
  • Mfr. Part No. C10M10 CYLINDRICAL FUSE 10 x 38 10A AM 500V AC
Subtotal (1 pack of 10 units)
$25.11(exc. GST)
In Stock
  • RS Stock No. 250-6314
  • Mfr. Part No. 03500417TXN
Subtotal (1 unit)
$41.28(exc. GST)
In Stock
Better World
  • RS Stock No. 831-9188
  • Mfr. Part No. 1SDA068059R1 XT3N 250 TMD 250-2500 3p F F
Subtotal (1 unit)
$1,539.75(exc. GST)
In Stock
  • RS Stock No. 893-8546
Subtotal (1 unit)
$143.98(exc. GST)
In Stock
  • RS Stock No. 288-4613
  • Mfr. Part No. JF 16-200 M10
Subtotal (1 unit)
$14.85(exc. GST)
In Stock
  • RS Stock No. 290-1258
  • Mfr. Part No. 0402174
Subtotal (1 unit)
$53.39(exc. GST)
In Stock
  • RS Stock No. 746-7652
  • Mfr. Part No. 2CDS251001R0044 S201-C4
Subtotal (1 unit)
$40.15(exc. GST)
In Stock
  • RS Stock No. 831-9197
  • Mfr. Part No. 1SDA066325R1
Subtotal (1 unit)
$251.38(exc. GST)
In Stock
  • RS Stock No. 284-6489
Subtotal (1 pack of 5 units)
$67.39(exc. GST)
In Stock
  • RS Stock No. 746-7918
  • Mfr. Part No. 2CDS254001R0101 S204-D10
Subtotal (1 unit)
$373.65(exc. GST)
In Stock
  • RS Stock No. 420-044
  • Mfr. Part No. FX0185
Subtotal (1 pack of 5 units)
$100.03(exc. GST)
Temporarily out of stock
  • RS Stock No. 230-6665
  • Mfr. Part No. A9F44316
Subtotal (1 unit)
$58.31(exc. GST)
Being discontinued
  • RS Stock No. 563-380
Subtotal (1 pack of 10 units)
$8.20(exc. GST)
In Stock
  • RS Stock No. 189-5642
  • Mfr. Part No. 2CSF204023R1400 F204 AC-40/0,03-L
Subtotal (1 unit)
$161.23(exc. GST)
In Stock
  • RS Stock No. 413-535
  • Mfr. Part No. CEO80
Subtotal (1 unit)
$34.60(exc. GST)
In Stock
  • RS Stock No. 769-3772
  • Mfr. Part No. L60030M1SQ
Subtotal (1 unit)
$17.88(exc. GST)
Currently unavailable
  • RS Stock No. 420-252
Subtotal (1 kit)
$140.81(exc. GST)
In Stock
  • RS Stock No. 746-7643
  • Mfr. Part No. 2CDS251001R0034 S201-C3
Subtotal (1 unit)
$44.18(exc. GST)
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