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

35176 Products showing for Fuses & Circuit Breakers

2 of 999+
In Stock
Eaton 4A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 703-8370
  • Mfr. Part No. C10G4
Each (In a Pack of 10)
$3.008(exc. GST)
In Stock
RS PRO 3A Resettable Fuse, 24V dc
  • RS Stock No. 279-6768
Each (In a Pack of 10)
$1.186(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 2A Curve C, 250V DC
  • RS Stock No. 772-1505
  • Mfr. Part No. A9N61502
Each
$94.31(exc. GST)
In Stock
Eaton 10A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 703-8386
  • Mfr. Part No. C10G10
Each (In a Pack of 10)
$3.008(exc. GST)
Limited stock
ABB SN201 MCB, 1+N, 10A Curve C, 230V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 186-3478
  • Mfr. Part No. 2CSS245202R0104
Each
$30.19(exc. GST)
In Stock
Littelfuse Automotive Fuse Kit
  • RS Stock No. 219-9556
  • Mfr. Part No. 00940957XXN
Each
$108.12(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 16A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8866
  • Mfr. Part No. A9F44116
Each
$18.61(exc. GST)
In Stock
Better World
Schneider Electric Insulation accessory for use with Compact NSX, Easy Pact CVS
  • RS Stock No. 201-3601
  • Mfr. Part No. LV429517
Each
$99.62(exc. GST)
In Stock
RS PRO 5A Tan Blade Car Fuse, 32V dc
  • RS Stock No. 563-778
Each (In a Pack of 10)
$1.738(exc. GST)
In Stock
Eaton 30A Panel Mount Fuse Holder for 6.3 x 32mm Fuse, 1P, 250V ac
  • RS Stock No. 852-7272
  • Mfr. Part No. HKP-R
Each
$11.74(exc. GST)
In Stock
RS PRO 2A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-413
Each (In a Pack of 10)
$1.671(exc. GST)
In Stock
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-3108
Each (In a Pack of 10)
$0.609(exc. GST)
In Stock
Schneider Electric Acti 9 iC60N MCB, 3P, 20A Curve C
  • RS Stock No. 230-6666
  • Mfr. Part No. A9F44320
Each
$91.98(exc. GST)
Temporarily out of stock
Schneider Electric Acti 9 iC60N MCB, 3P, 50A Curve C
  • RS Stock No. 230-6671
  • Mfr. Part No. A9F44350
Each
$97.39(exc. GST)
Last RS stock
TE Connectivity Thermal Circuit Breaker - W57 Single Pole 250V ac Voltage Rating, 15A Current Rating
  • RS Stock No. 782-7931
  • Mfr. Part No. W57-XB7A4A10-15
Each
$6.56(exc. GST)
In Stock
ABB 36 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS Stock No. 811-1903
  • Mfr. Part No. 1SL1206A00 65P12X32
Each
$235.59(exc. GST)
Temporarily out of stock
Schneider Electric Acti 9 iC60N MCB, 1P, 4A Curve C
  • RS Stock No. 230-6652
  • Mfr. Part No. A9F44104
Each
$18.61(exc. GST)
Being discontinued
RS PRO 4A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-542
Each (In a Pack of 10)
$0.812(exc. GST)
In Stock
RS PRO F, T Fuse Kit
  • RS Stock No. 893-8537
Each
$213.03(exc. GST)
In Stock
RS PRO 16A Rail Mount Fuse Holder, 600V ac
  • RS Stock No. 501-809
Each (In a Pack of 10)
$13.868(exc. GST)
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