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

34958 Products showing for Fuses & Circuit Breakers

9 of 999+
RS PRO 10A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6091
Each (In a Pack of 10)
$0.826(exc. GST)
Bourns 20A F Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 254-4094
  • Mfr. Part No. PF-EC1-20
Each
$28.04(exc. GST)
RS PRO 3.15A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-491
Each (In a Pack of 10)
$0.82(exc. GST)
SIBA 2A F Ceramic Cartridge Fuse, 5 x 25mm
  • RS Stock No. 267-3391
  • Mfr. Part No. 70-010-04/2A
Each (In a Pack of 5)
$8.434(exc. GST)
Mersen 30A T Fibreglass Cartridge Fuse, 10 x 38mm
  • RS Stock No. 914-4389
  • Mfr. Part No. ATQR30
Each
$68.31(exc. GST)
Eaton 8A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 852-7092
  • Mfr. Part No. MDA-8-R
Each
$11.88(exc. GST)
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)
ABB 72 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS Stock No. 811-1919
  • Mfr. Part No. 1SL1209A00 65P18X42
Each
$196.16(exc. GST)
SIBA 2A M Ceramic Cartridge Fuse, 5 x 25mm
  • RS Stock No. 267-3537
  • Mfr. Part No. 70-010-05/2A
Each (In a Pack of 5)
$9.136(exc. GST)
Littelfuse SMD Non Resettable Fuse 5A, 125V ac/dc
  • RS Stock No. 541-3445
  • Mfr. Part No. 0451005.MRL
Each (In a Pack of 10)
$1.837(exc. GST)
SIBA 315mA FF Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 736-1412
  • Mfr. Part No. 70-172-40/0.315A
Each
$12.33(exc. GST)
Legrand Circuit breaker TX3 6000 MCB, 1P, 10A Curve C, 230V AC
  • RS Stock No. 249-5878
  • Mfr. Part No. 4 034 32
Each
$9.40(exc. GST)
RS PRO 1.5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-453
Each (In a Pack of 10)
$3.92(exc. GST)
RS PRO 80A British Standard Fuse, A3, 550V ac, 73.5mm
  • RS Stock No. 521-2668
Each
$34.25(exc. GST)
Littelfuse 32mA F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 725-8045
  • Mfr. Part No. 0217.032MXP
Each (In a Bag of 10)
$4.369(exc. GST)
RS PRO SMD Non Resettable Fuse 30A, 250V
  • RS Stock No. 182-4067
Each (In a Pack of 5)
$4.578(exc. GST)
Better World
Schneider Electric Acti 9 3 Phase Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 776-2742
  • Mfr. Part No. A9XPH412
Each
$51.35(exc. GST)
RS PRO 630mA F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-378
Each (In a Pack of 10)
$0.32(exc. GST)
Better World
Schneider Electric Acti 9 iC60H MCB, 4P, 63A Curve C, 440V AC, 220 → 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3458
  • Mfr. Part No. A9F54463
Each
$249.96(exc. GST)
Mersen 10A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-7268
  • Mfr. Part No. Y211552
Each (In a Pack of 10)
$2.658(exc. GST)
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