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.

34912 Products showing for Fuses & Circuit Breakers

36 of 999+
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  • RS Stock No. 269-3791
  • Mfr. Part No. 0034.6924
Each
$2.30(exc. GST)
In Stock
  • RS Stock No. 729-2760
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-15A
Each
$64.19(exc. GST)
In Stock
  • RS Stock No. 269-3797
  • Mfr. Part No. 0853.0571
Each
$1.65(exc. GST)
In Stock
  • RS Stock No. 563-778
Each (In a Pack of 10)
$1.912(exc. GST)
In Stock
  • RS Stock No. 156-8901
  • Mfr. Part No. 16CT
Each (In a Pack of 5)
$79.284(exc. GST)
In Stock
  • RS Stock No. 161-1830
  • Mfr. Part No. 9005805.80
Each
$12.31(exc. GST)
In Stock
  • RS Stock No. 174-0672
  • Mfr. Part No. 0498100.M
Each (In a Pack of 10)
$3.818(exc. GST)
In Stock
  • RS Stock No. 654-851
  • Mfr. Part No. M9U21240
Each
$265.40(exc. GST)
In Stock
  • RS Stock No. 668-6001
Each (In a Pack of 10)
$0.735(exc. GST)
In Stock
  • RS Stock No. 769-0076
  • Mfr. Part No. 0213004.MXP
Each (In a Pack of 10)
$1.576(exc. GST)
In Stock
  • RS Stock No. 541-3388
  • Mfr. Part No. 0451001.MRL
Each (In a Pack of 10)
$2.221(exc. GST)
In Stock
  • RS Stock No. 269-3869
  • Mfr. Part No. 8020.5021
Each
$2.66(exc. GST)
Temporarily out of stock
  • RS Stock No. 235-217
  • Mfr. Part No. 107206 NZM3-XAD630
Each
$677.05(exc. GST)
Temporarily out of stock
Better World
  • RS Stock No. 221-1029
  • Mfr. Part No. LV432658
Each
$2,823.07(exc. GST)
In Stock
  • RS Stock No. 922-8689
  • Mfr. Part No. 235445 PFIM-63/4/03-A-MW
Each
$490.07(exc. GST)
In Stock
Better World
  • RS Stock No. 776-2730
  • Mfr. Part No. A9XPH324
Each
$264.52(exc. GST)
Limited stock
  • RS Stock No. 783-3337
  • Mfr. Part No. 70-007-65/16A
Each (In a Pack of 10)
$0.539(exc. GST)
In Stock
  • RS Stock No. 541-4577
  • Mfr. Part No. 021606.3HXP
Each (In a Pack of 10)
$2.762(exc. GST)
Being discontinued
  • RS Stock No. 563-425
Each (In a Pack of 10)
$0.893(exc. GST)
Temporarily out of stock
  • RS Stock No. 597-859
  • Mfr. Part No. NQN206
Each
$496.83(exc. GST)
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