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

34933 Products showing for Fuses & Circuit Breakers

22 of 999+
Better World
Schneider Electric
  • RS Stock No. 125-1382
  • Mfr. Part No. A9C70114
Each
$793.05(exc. GST)
Better World
Schneider Electric Linergy Busbar, 690V
  • RS Stock No. 221-0905
  • Mfr. Part No. GV3G264
Each
$109.16(exc. GST)
Bulgin 10A Inline Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 414-601
  • Mfr. Part No. FX0380
Each (In a Pack of 5)
$13.024(exc. GST)
Eaton 15A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 848-2744
  • Mfr. Part No. AGC-15-R
Each
$4.24(exc. GST)
Eaton 7A F Ceramic Cartridge Fuse, 6.3 x 25mm
  • RS Stock No. 412-582
  • Mfr. Part No. TDC180-7A
Each (In a Pack of 10)
$2.439(exc. GST)
Schurter 12A F Melamine Cartridge Fuse, 10 x 38mm
  • RS Stock No. 712-4774P
  • Mfr. Part No. 0090.0012
Each (Supplied in a Box)
$28.24(exc. GST)
Mersen 10A Slow-Blow Ceramic Cartridge Fuse, 14 x 51mm
  • RS Stock No. 247-2972
  • Mfr. Part No. Z216153
1 Box of 10
$169.72(exc. GST)
WAGO Electronic Circuit Breaker 10A 24V 787, 4 channels , DIN Rail
  • RS Stock No. 279-4100
  • Mfr. Part No. 787-1664/000-080
Each
$722.80(exc. GST)
Schneider Electric Acti 9 3 Phase Distribution Board, 18 Way, 250 A
  • RS Stock No. 230-6837
  • Mfr. Part No. SAU25018183
Each
$261.38(exc. GST)
RS PRO 7A T Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6098
Each (In a Pack of 10)
$1.442(exc. GST)
SIBA 125A NH Fuse, NH00, 690V
  • RS Stock No. 893-8568
  • Mfr. Part No. 20-209-08/125A
Each (In a Pack of 3)
$53.687(exc. GST)
WJ Furse Copper Earth Bar L. 550mm x W. 90mm x H. 96mm 6 Ways
  • RS Stock No. 124-2504
  • Mfr. Part No. 7TCA083670R0632 LK207-6
Each
$588.69(exc. GST)
ABB, Pro M MCCB 1P 100A, DIN Rail Mount
  • RS Stock No. 538-3833
  • Mfr. Part No. 2CDE283001R0100 E203/100R
Each
$147.05(exc. GST)
2-pole switch, 2-pole protected
  • RS Stock No. 577-477
  • Mfr. Part No. 3120-N523-P7T1-W19DG4-10A
Each
$51.56(exc. GST)
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 7A Current Rating
  • RS Stock No. 782-0927
  • Mfr. Part No. W58-XB1A4A-7
Each
$19.09(exc. GST)
Mersen 63A FF Cartridge Fuse, 22 x 58mm
  • RS Stock No. 136-0591
  • Mfr. Part No. D1018627 / FR22GR69V63T
Each
$85.60(exc. GST)
Littelfuse 50A Red Blade Car Fuse, 32V dc
  • RS Stock No. 894-9584
  • Mfr. Part No. 0299050.ZXNV
Each (In a Pack of 5)
$4.316(exc. GST)
RS PRO MCB/RCBO Lock for use with MCB, RCBO, RCCB, Main Isolator
  • RS Stock No. 798-2233
Each (In a Pack of 3)
$15.64(exc. GST)
Eaton 1.6A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-1357
  • Mfr. Part No. S506-1.6-R
Each (In a Pack of 10)
$0.473(exc. GST)
Littelfuse 5A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-2981
  • Mfr. Part No. 0213005.MXP
Each (In a Pack of 10)
$1.784(exc. GST)
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