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

35151 Products showing for Fuses & Circuit Breakers

290 of 999+
In Stock
  • RS Stock No. 489-6568
  • Mfr. Part No. 2CDL210001R1060 - PS1/60
Each
$61.51(exc. GST)
Temporarily out of stock
  • RS Stock No. 120-675
  • Mfr. Part No. 168917 NZMH3-S320-SVE
Each
$6,493.61(exc. GST)
In Stock
  • RS Stock No. 258-6357
  • Mfr. Part No. AC85ABD
Each
$3.81(exc. GST)
Temporarily out of stock
Better World
  • RS Stock No. 254-6290
  • Mfr. Part No. C10F4TM080D1
Each
$2,728.97(exc. GST)
Temporarily out of stock
  • RS Stock No. 258-6366
  • Mfr. Part No. HC85AY-1
Each (In a Bag of 5000)
$1.308(exc. GST)
Temporarily out of stock
  • RS Stock No. 217-6971
  • Mfr. Part No. BVP:090164
Each
$1,793.84(exc. GST)
Temporarily out of stock
  • RS Stock No. 192-0891
  • Mfr. Part No. 1SDA066806R1
Each
$783.67(exc. GST)
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  • RS Stock No. 182-1436
  • Mfr. Part No. 170M1560D
Each (In a Box of 10)
$322.812(exc. GST)
Temporarily out of stock
Better World
  • RS Stock No. 245-709
  • Mfr. Part No. 3VA6210-6JQ41-2AA0
Each
$14,759.22(exc. GST)
Temporarily out of stock
  • RS Stock No. 611-269
  • Mfr. Part No. PLSM-D16/3-MW
Each
$215.00(exc. GST)
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  • RS Stock No. 225-5423
  • Mfr. Part No. 3NW7121
Each
$119.23(exc. GST)
Temporarily out of stock
  • RS Stock No. 251-877
  • Mfr. Part No. 194568 CI44-S60-250/3-1XNH00
Each
$1,144.36(exc. GST)
In Stock
  • RS Stock No. 258-6369
  • Mfr. Part No. HC90AY-1
Each (In a Pack of 10)
$2.038(exc. GST)
Temporarily out of stock
  • RS Stock No. 250-4759
  • Mfr. Part No. 2CDL310150R1056
1 Box of 5
$403.95(exc. GST)
Temporarily out of stock
  • RS Stock No. 211-3854
  • Mfr. Part No. 8US1921-2AB01
Each (In a Pack of 15)
$9.849(exc. GST)
In Stock
  • RS Stock No. 257-7419
  • Mfr. Part No. 7P2010000020
Each
$93.43(exc. GST)
Temporarily out of stock
  • RS Stock No. 258-6362
  • Mfr. Part No. HC77AY-1
Each (In a Bag of 5000)
$1.308(exc. GST)
Temporarily out of stock
  • RS Stock No. 258-884
  • Mfr. Part No. 284643 BC-U-3/36-TW-ECO
Each
$346.13(exc. GST)
In Stock
  • RS Stock No. 258-6410
  • Mfr. Part No. SC82AAA
Each (In a Pack of 10)
$1.934(exc. GST)
In Stock
  • RS Stock No. 258-6403
  • Mfr. Part No. SC72AAB
Each (In a Pack of 10)
$1.39(exc. GST)
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