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

34911 Products showing for Fuses & Circuit Breakers

31 of 999+
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 177-8138
Each (In a Pack of 50)
$1.136(exc. GST)
Littelfuse PC Board Non Resettable Fuse, Axial 1A, 125V ac/dc
  • RS Stock No. 541-3265
  • Mfr. Part No. 251001.NRT1L
Each (In a Pack of 10)
$2.279(exc. GST)
Schneider Electric Acti9 Load Center for use with Type A Type Distribution Board
  • RS Stock No. 207-328
  • Mfr. Part No. SE1100L
Each
$34.64(exc. GST)
RS PRO 800mA T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 414-415
Each (In a Pack of 10)
$3.374(exc. GST)
Wurth Elektronik 10A Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 283-6464
  • Mfr. Part No. 696212000000
Each
$3.14(exc. GST)
RS PRO 4A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-346
Each (In a Pack of 10)
$1.041(exc. GST)
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
$12.91(exc. GST)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 1P, 10A Curve B, 240V AC, 10000 A Breaking Capacity
  • RS Stock No. 336-604
  • Mfr. Part No. SE10B110
Each
$57.76(exc. GST)
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 4A Current Rating
  • RS Stock No. 782-8022
  • Mfr. Part No. W58-XB1A4A-4
Each
$25.29(exc. GST)
Eaton 400A Bolted Tag Fuse, C1, 415V ac, 133 mm, 184 mm
  • RS Stock No. 181-8447
  • Mfr. Part No. EF400
Each
$112.23(exc. GST)
RS PRO 3A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6048
Each (In a Pack of 10)
$0.882(exc. GST)
Schneider Electric Acti9 A9F MCB, 1P, 16A Curve B, 230V AC, 72V DC, 15 kA Breaking Capacity
  • RS Stock No. 288-7084
  • Mfr. Part No. A9F93116
Each
$162.32(exc. GST)
ETA Thermal Circuit Breaker - 1610 Single Pole 32V dc Voltage Rating, 6A Current Rating
  • RS Stock No. 409-867
  • Mfr. Part No. 1610-21-6A
Each
$19.37(exc. GST)
Eaton 63A Cartridge Fuses, 76 x 359mm
  • RS Stock No. 246-014
  • Mfr. Part No. 12BFGHA63
1 Pack of 3
$3,029.58(exc. GST)
Mersen 8A Slow-Blow Ceramic Cartridge Fuse, 14 x 51mm
  • RS Stock No. 247-2843
  • Mfr. Part No. N222215
1 Box of 10
$169.72(exc. GST)
SIBA 5A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 783-3324
  • Mfr. Part No. 70-007-65/5A
Each (In a Pack of 10)
$0.449(exc. GST)
Legrand Circuit breaker TX3 6000 MCB, 1P, 40A Curve C, 230V AC
  • RS Stock No. 249-5884
  • Mfr. Part No. 4 034 38
Each
$9.34(exc. GST)
Littelfuse PC Board Non Resettable Fuse, Radial 1A, 250V ac
  • RS Stock No. 895-1666
  • Mfr. Part No. 37211000001
Each (In a Pack of 10)
$1.28(exc. GST)
RS PRO 32A Bolted Tag Fuse, 350 V dc, 690V ac, 63.5mm
  • RS Stock No. 221-3655
Each
$26.40(exc. GST)
HENSEL ENYBOARD Distribution Board, 41 A
  • RS Stock No. 117-122
  • Mfr. Part No. RK 0610 T
Each
$80.01(exc. GST)
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