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

34912 Products showing for Fuses & Circuit Breakers

51 of 999+
In Stock
ABB RCBO, 32A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 183-3704
  • Mfr. Part No. 2CSR245041R1324
Each
$176.51(exc. VAT)
Temporarily out of stock
Legrand Circuit breaker TX3 6000 MCB, 1P, 25A Curve C, 230V AC
  • RS Stock No. 249-5880
  • Mfr. Part No. 4 034 35
Each
$9.09(exc. VAT)
In Stock
Eaton 15A Ceramic Cartridge Fuse, 10 x 26mm
  • RS Stock No. 417-335
  • Mfr. Part No. C1515
Each (In a Pack of 5)
$7.90(exc. VAT)
Temporarily out of stock
Hager RCD, 25A, 2 Pole, 30mA
  • RS Stock No. 144-4843
  • Mfr. Part No. BDC225F
Each
$458.98(exc. VAT)
In Stock
Eaton 32A Ceramic Cartridge Fuse, 14 x 51mm
  • RS Stock No. 703-8431
  • Mfr. Part No. C14G32
Each (In a Pack of 10)
$4.131(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti 9 IC60L MCB, 3P, 4A, Type Z, 400V AC, 180V DC, 20 kA, 15 kA Breaking Capacity
  • RS Stock No. 212-0125
  • Mfr. Part No. A9F92304
Each
$616.77(exc. VAT)
In Stock
Littelfuse 2.5A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 725-8051
  • Mfr. Part No. 021802.5MXP
Each (In a Bag of 10)
$3.142(exc. VAT)
In Stock
Better World
Schneider Electric Cover for use with Compact Nsx, Easypact Cvs
  • RS Stock No. 221-1265
  • Mfr. Part No. LV432593
Each
$224.07(exc. VAT)
In Stock
Phoenix Contact Electronic Circuit Breaker 10A 24V CBM, DIN Rail Mount Type E
  • RS Stock No. 890-3806
  • Mfr. Part No. 2905744
Each
$746.43(exc. VAT)
Last RS stock
onsemi Thermal Fuse +125°C 1 A, 5V
  • RS Stock No. 195-8749
  • Mfr. Part No. NIS6150MT1TXG
Each (In a Pack of 50)
$2.296(exc. VAT)
Currently unavailable
RS PRO 2A M Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 182-4154
Each (In a Pack of 5)
$11.08(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 4P 400A
  • RS Stock No. 221-1029
  • Mfr. Part No. LV432658
Each
$2,823.07(exc. VAT)
Temporarily out of stock
Phoenix Contact 15A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 240-7311
  • Mfr. Part No. 3061348
Each (In a Pack of 10)
$20.866(exc. VAT)
In Stock
ABB XT1, XT3 Removable Lock for use with Tmax XT
  • RS Stock No. 831-9204
  • Mfr. Part No. 1SDA066588R1
Each
$59.46(exc. VAT)
Temporarily out of stock
Phoenix Contact 20A Cartridge Fuse, 10 x 38mm
  • RS Stock No. 241-6167
  • Mfr. Part No. 3061363
Each (In a Pack of 10)
$23.178(exc. VAT)
In Stock
Eaton 20A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 852-7055
  • Mfr. Part No. MDA-20-R
Each
$14.47(exc. VAT)
In Stock
RS PRO Earthing Strap Copper 300 x 13mm Diameter
  • RS Stock No. 264-9247
Each (In a Pack of 5)
$20.824(exc. VAT)
In Stock
RS PRO 10A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6091
Each (In a Pack of 10)
$0.909(exc. VAT)
In Stock
Wurth Elektronik 10A Panel Mount Fuse Holder for 5 x 20mm Fuse, 1P, 250V ac
  • RS Stock No. 893-0619
  • Mfr. Part No. 696315001002
Each (In a Pack of 5)
$4.228(exc. VAT)
In Stock
Eaton 63A Rail Mount Fuse Holder for A3 Fuse, 1P, 690V ac
  • RS Stock No. 413-923
  • Mfr. Part No. RS63H
Each
$339.81(exc. VAT)
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