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

258 of 999+
In Stock
  • RS Stock No. 230-3019
  • Mfr. Part No. 3NE8721-1
Each (In a Pack of 10)
$108.944(exc. GST)
Temporarily out of stock
  • RS Stock No. 629-322
  • Mfr. Part No. 8GK1383-2KK25
Each
$1,601.22(exc. GST)
Temporarily out of stock
  • RS Stock No. 282-6476
  • Mfr. Part No. BSF-250G-3XL15
Each
$995.58(exc. GST)
Temporarily out of stock
  • RS Stock No. 339-335
  • Mfr. Part No. BJL16015
Each
$761.96(exc. GST)
In Stock
  • RS Stock No. 254-4104
  • Mfr. Part No. PF-ET1-25
Each
$38.82(exc. GST)
In Stock
Better World
  • RS Stock No. 776-2941
  • Mfr. Part No. A9N26963
Each
$368.02(exc. GST)
In Stock
  • RS Stock No. 622-0648
  • Mfr. Part No. 5TT4101-0
Each
$124.41(exc. GST)
In Stock
  • RS Stock No. 130-450
  • Mfr. Part No. KSA160ED43012
Each
$1,285.35(exc. GST)
Temporarily out of stock
  • RS Stock No. 259-891
  • Mfr. Part No. 294893 BCZ-CS-PF-4/52
Each
$95.61(exc. GST)
Temporarily out of stock
  • RS Stock No. 228-758
  • Mfr. Part No. 63ENSF 63A 550V FUSE HOLDER
1 Pack of 5
$278.28(exc. GST)
Limited stock
  • RS Stock No. 647-8386
  • Mfr. Part No. MF-USMF110-2
Each (In a Pack of 10)
$0.575(exc. GST)
Temporarily out of stock
  • RS Stock No. 182-1458
  • Mfr. Part No. TMF400M450
Each
$1,436.80(exc. GST)
Temporarily out of stock
  • RS Stock No. 119-367
  • Mfr. Part No. KSA400ED4081
Each
$2,769.25(exc. GST)
Temporarily out of stock
  • RS Stock No. 247-749
  • Mfr. Part No. 155400 XANP-MC-EMPTY
1 Pack of 10
$67.76(exc. GST)
Temporarily out of stock
  • RS Stock No. 253-488
  • Mfr. Part No. 248267 Z-D63
Each
$25.63(exc. GST)
Temporarily out of stock
  • RS Stock No. 346-683
  • Mfr. Part No. NHJF36080TW
Each
$4,797.23(exc. GST)
In Stock
  • RS Stock No. 181-8727
  • Mfr. Part No. 80NHG00B
Each
$17.56(exc. GST)
In Stock
  • RS Stock No. 181-8653
  • Mfr. Part No. CD80
Each
$45.03(exc. GST)
Temporarily out of stock
Better World
  • RS Stock No. 160-094
  • Mfr. Part No. 3RV2311-0CC10
Each
$391.97(exc. GST)
Temporarily out of stock
  • RS Stock No. 341-435
  • Mfr. Part No. NHGL36150
Each
$5,079.95(exc. GST)
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