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.

34933 Products showing for Fuses & Circuit Breakers

12 of 999+
  • RS Stock No. 270-7942
  • Mfr. Part No. 3403.0172.11
Each
$2.85(exc. GST)
  • RS Stock No. 230-6654
  • Mfr. Part No. A9F44202
Each
$75.32(exc. GST)
  • RS Stock No. 276-8961
  • Mfr. Part No. R9H18404
Each
$425.49(exc. GST)
  • RS Stock No. 258-207
  • Mfr. Part No. 288935 Z-D01/SE-4
1 Pack of 12
$9.28(exc. GST)
  • RS Stock No. 787-4164P
  • Mfr. Part No. 64900001039
Each (Supplied in a Bag)
$1.267(exc. GST)
  • RS Stock No. 219-9233
  • Mfr. Part No. A9E18073
Each
$52.18(exc. GST)
  • RS Stock No. 831-9175
  • Mfr. Part No. 1SDA067418R1 XT1N 160 TMD 160-1600 3p F F
Each
$581.05(exc. GST)
Better World
  • RS Stock No. 850-8571
  • Mfr. Part No. EZ9S16263
Each
$16.89(exc. GST)
  • RS Stock No. 458-8762
  • Mfr. Part No. X222.233.01 1180 BASE
Each
$47.63(exc. GST)
  • RS Stock No. 541-3423
  • Mfr. Part No. 0451004.MRL
Each (In a Pack of 10)
$1.507(exc. GST)
Better World
  • RS Stock No. 776-2831
  • Mfr. Part No. A9XPT920
Each
$33.34(exc. GST)
  • RS Stock No. 191-9523
  • Mfr. Part No. A9XPN712
Each
$48.75(exc. GST)
  • RS Stock No. 517-6893
  • Mfr. Part No. RUEF900
Each (In a Pack of 10)
$1.834(exc. GST)
  • RS Stock No. 610-9844
Each (In a Pack of 10)
$1.506(exc. GST)
Better World
  • RS Stock No. 776-2720
  • Mfr. Part No. A9XPH212
Each
$39.25(exc. GST)
  • RS Stock No. 267-3442
  • Mfr. Part No. 70-010-04/4A
Each (In a Pack of 5)
$11.928(exc. GST)
  • RS Stock No. 783-3321
  • Mfr. Part No. 70-007-65/8A
Each (In a Pack of 10)
$0.42(exc. GST)
Better World
  • RS Stock No. 235-789
  • Mfr. Part No. GV2AF01
Each
$48.65(exc. GST)
  • RS Stock No. 233-0629
  • Mfr. Part No. BK-S-8301-1X-DIN
Each (In a Pack of 10)
$9.781(exc. GST)
Better World
  • RS Stock No. 219-9268
  • Mfr. Part No. A9F94132
Each
$138.96(exc. GST)
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