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

32 of 999+
In Stock
Eaton 32A British Standard Fuse, A2, 500V, 73.5mm
  • RS Stock No. 156-8608
  • Mfr. Part No. AAO32M50
Each (In a Pack of 5)
$16.426(exc. GST)
In Stock
Schneider Electric R9E RCCB, 63A, 2 Pole, 30mA, Type AC, 230V
  • RS Stock No. 276-8942
  • Mfr. Part No. R9ERC263
Each
$385.73(exc. GST)
Limited stock
RS PRO 1.5A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6032
Each (In a Pack of 10)
$0.882(exc. GST)
Temporarily out of stock
RS PRO 30A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-4488
1 Box of 1000
$16,030.41(exc. GST)
Temporarily out of stock
Better World
Schneider Electric Surge Protector, 20kA, DIN Rail Mount
  • RS Stock No. 219-8279
  • Mfr. Part No. A9L65601
Each
$1,116.89(exc. GST)
In Stock
Clipsal Electrical MAX9 MX9MC MCB, 1P, 63A, 415V AC, 6000 A Breaking Capacity
  • RS Stock No. 282-2935
  • Mfr. Part No. MX9MC163
Each
$10.29(exc. GST)
Being discontinued
RS PRO PC Board Non Resettable Fuse, Axial 4A, 250V ac
  • RS Stock No. 764-9602
Each (In a Pack of 10)
$0.468(exc. GST)
Temporarily out of stock
Eaton 15A Cartridge Fuse, 1.5 x 0.41in
  • RS Stock No. 229-121
  • Mfr. Part No. FNQ-15
1 Pack of 10
$1,031.33(exc. GST)
In Stock
Legrand 16A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 180-6112
  • Mfr. Part No. 0 130 16
Each (In a Box of 10)
$5.492(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 Acti9 iDT40T MCB, 3P, 16A Curve C, 400V AC
  • RS Stock No. 239-9969
  • Mfr. Part No. A9P22316
Each
$282.11(exc. GST)
In Stock
Schurter 2A F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 830-4265
  • Mfr. Part No. 8020.5071.G
Each (In a Pack of 10)
$1.701(exc. GST)
In Stock
Schurter Non-Resettable Fuse Kit
  • RS Stock No. 539-3802
  • Mfr. Part No. 0034.9871
Each
$448.75(exc. GST)
Temporarily out of stock
ABB DDA200 RCD, 25A, 2 Pole, 30mA, Type AC
  • RS Stock No. 183-3648
  • Mfr. Part No. 2CSB202001R1250
Each
$177.48(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 63A, Fixed Mount
  • RS Stock No. 260-7594
  • Mfr. Part No. C11F3TM063L
Each
$915.04(exc. GST)
Limited stock
ETI 16A D01 Neozed Fuse, E14 Thread Size, gG, 400V ac
  • RS Stock No. 415-979
  • Mfr. Part No. 2211005
Each (In a Pack of 5)
$2.722(exc. GST)
In Stock
Eaton 32A British Standard Fuse, A2, 690V, 73mm
  • RS Stock No. 181-8710
  • Mfr. Part No. 32H07-660
Each
$62.98(exc. GST)
In Stock
Schurter Thermal Circuit Breaker - T11 Single Pole 240V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 284-5833
  • Mfr. Part No. 4400.001
Each
$22.65(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 500A, Fixed Mount
  • RS Stock No. 260-8222
  • Mfr. Part No. C63N31M500
Each
$11,152.96(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1.6kA, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 347-105
  • Mfr. Part No. C160N320FM
Each
$27,509.13(exc. GST)
In Stock
Eaton 20A T Melamine Cartridge Fuse, 10 x 38mm
  • RS Stock No. 851-1479
  • Mfr. Part No. LP-CC-20
Each
$152.42(exc. GST)
Results per page
1
32
1746

Related links