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

201 of 999+
In Stock
Schurter 16A Panel Mount Fuse Holder for 6.3 x 32mm Fuse, 1P, 250V ac
  • RS Stock No. 216-4285
  • Mfr. Part No. 7093.0110
Each
$190.67(exc. GST)
Temporarily out of stock
Schurter TA36 Rocker Circuit Breaker - TA36 Single Pole 32 V dc, 277 V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 221-5589
  • Mfr. Part No. 3-128-201
1 Box of 50
$927.96(exc. GST)
In Stock
Bourns Thermal Fuse +85°C 50 A, 28V
  • RS Stock No. 258-6414
  • Mfr. Part No. SC85AAA
Each (In a Pack of 10)
$1.704(exc. GST)
In Stock
Bourns Thermal Fuse 50 A, 12V
  • RS Stock No. 258-6378
  • Mfr. Part No. P-TCO-N350/12-2
Each (On a Reel of 3500)
$0.82(exc. GST)
In Stock
Littelfuse SMD Non Resettable Fuse 10A, 125V ac/dc
  • RS Stock No. 541-3467P
  • Mfr. Part No. 0451010.MRL
Each (Supplied on a Reel)
$3.486(exc. GST)
In Stock
Littelfuse SMD Non Resettable Fuse 5A, 32V
  • RS Stock No. 787-4230P
  • Mfr. Part No. 0466005.NR
Each (Supplied on a Reel)
$1.502(exc. GST)
In Stock
Better World
Siemens Sentron 5SY7 MCB, 3P, 16A Curve C, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 622-0395
  • Mfr. Part No. 5SY7316-7
Each
$243.09(exc. GST)
In Stock
Littelfuse SMD Non Resettable Fuse 375mA, 125V
  • RS Stock No. 738-3282P
  • Mfr. Part No. 0466.375NR
Each (Supplied on a Reel)
$1.159(exc. GST)
Temporarily out of stock
Schneider Electric RCBO, 10A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, Easy9 Range
  • RS Stock No. 654-753
  • Mfr. Part No. EZ9TDA7610
Each
$475.96(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 2kA 1SDA07, 4 channels
  • RS Stock No. 259-3716
  • Mfr. Part No. 1SDA071690R1
Each
$33,750.13(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 6.3kA 1SDA07, 3 channels
  • RS Stock No. 259-4458
  • Mfr. Part No. 1SDA072657R1
Each
$120,876.07(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 4 channels
  • RS Stock No. 259-3430
  • Mfr. Part No. 1SDA071373R1
Each
$13,124.20(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Touch LSIG, 3 channels
  • RS Stock No. 259-4043
  • Mfr. Part No. 1SDA072116R1
Each
$12,818.15(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Hi-Touch LSI, 4 channels
  • RS Stock No. 259-3436
  • Mfr. Part No. 1SDA071379R1
Each
$19,590.73(exc. GST)
In Stock
ETA ESX10 Electronic Circuit breaker 6A 24V ESX10-T, 1 channels , Plug-In Mounting
  • RS Stock No. 210-2135
  • Mfr. Part No. ESX10-TB-101-DC24V-6A-E
Each
$166.22(exc. GST)
In Stock
ABB Electronic Circuit Breaker 4A 24V EPD24, DIN Rail Mount
  • RS Stock No. 914-4601
  • Mfr. Part No. 2CDE601101R2004 EPD24-TB-101-4A
Each
$433.30(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 4 channels
  • RS Stock No. 259-4624
  • Mfr. Part No. 1SDA072892R1
Each
$16,800.78(exc. GST)
Temporarily out of stock
ABB Emax2 Electronic Circuit Breaker 800A 1SDA07, 4 channels
  • RS Stock No. 259-4623
  • Mfr. Part No. 1SDA072891R1
Each
$16,020.19(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 4kA Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3294
  • Mfr. Part No. 1SDA071203R1
Each
$43,562.99(exc. GST)
Temporarily out of stock
Better World
ABB Emax2 Electronic Circuit Breaker 800A Ekip Dip LSI, 3 channels
  • RS Stock No. 259-3047
  • Mfr. Part No. 1SDA070902R1
Each
$12,674.89(exc. GST)
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