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

63 of 999+
ABB S-ARC1 MCB, 1+N, 16A Curve C, 240V AC, 6 kA Breaking Capacity
  • RS Stock No. 175-9928
  • Mfr. Part No. 2CSA255901R9164 S-ARC1 C16
Each
$457.16(exc. GST)
Limitor Thermal Fuse +97°C 2 A, 250V ac
  • RS Stock No. 116-114
  • Mfr. Part No. SM 092 A0 2A
Each (In a Pack of 5)
$3.078(exc. GST)
Better World
Schneider Electric RCBO, 32A Current Rating, 4P Poles, 30mA Trip Sensitivity, Acti 9 Range
  • RS Stock No. 247-1931
  • Mfr. Part No. A9D87432
Each
$679.25(exc. GST)
Better World
Schneider Electric Acti 9 C60H-DC MCB, 1P, 6A Curve C, 250V DC
  • RS Stock No. 772-1502
  • Mfr. Part No. A9N61506
Each
$103.74(exc. GST)
Schneider Electric Acti 9 iC60N MCB, 3P, 63A Curve C
  • RS Stock No. 230-6672
  • Mfr. Part No. A9F44363
Each
$129.16(exc. GST)
Better World
Schneider Electric 25A Rail Mount Fuse Holder for 8 x 31mm Fuse, 3P, 500V ac
  • RS Stock No. 482-544
  • Mfr. Part No. DF83
Each
$63.94(exc. GST)
Schneider Electric RCBO, 32A Current Rating, 1P Poles, Type B, Acti9 Range
  • RS Stock No. 245-144
  • Mfr. Part No. A9D56832
Each
$404.67(exc. GST)
RS PRO 5A Tan Blade Car Fuse, 32V dc
  • RS Stock No. 563-778
Each (In a Pack of 10)
$1.912(exc. GST)
Better World
ABB Compact Home SH200 MCB, 3P, 16A Curve B, 440V AC, 6 kA Breaking Capacity
  • RS Stock No. 539-8295
  • Mfr. Part No. 2CDS213001R0165 SH203-B16
Each
$111.69(exc. GST)
Schurter PC Board Non Resettable Fuse, Axial 2A, 250 V ac, 125V dc
  • RS Stock No. 216-4099
  • Mfr. Part No. 7010.1860.12
Each (In a Pack of 5)
$19.554(exc. GST)
RS PRO Earthing Strap
  • RS Stock No. 746-7384
Each
$8.49(exc. GST)
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 800A, Fixed Mount
  • RS Stock No. 232-3139
  • Mfr. Part No. 33466
Each
$8,445.97(exc. GST)
FUSE 250V UL TL TR5 SL 6.3A
  • RS Stock No. 565-401
  • Mfr. Part No. 37416300430
Each
$393.22(exc. GST)
Better World
Schneider Electric Acti 9 C120N MCB, 3P, 80A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3064
  • Mfr. Part No. A9N18365
Each
$362.45(exc. GST)
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)
Busbar tin-plated 50 mm
  • RS Stock No. 279-4286
  • Mfr. Part No. 790-134
1 Box of 20
$122.47(exc. GST)
Europa Main AC Isolator Circuit Trip for use with PV System Main AC Isolator
  • RS Stock No. 136-1389
  • Mfr. Part No. EC4ACSW
Each
$78.31(exc. GST)
Better World
Schneider Electric Acti 9 C120N MCB, 3P, 125A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3076
  • Mfr. Part No. A9N18369
Each
$562.43(exc. GST)
Better World
Schneider Electric Linergy Busbar, 690V, 45mm Pitch
  • RS Stock No. 608-8220
  • Mfr. Part No. GV2G345
Each
$57.73(exc. GST)
Eaton 25A DIN Rail Mount 6.3 x 32mm Fuse Block, 300V
  • RS Stock No. 233-0629
  • Mfr. Part No. BK-S-8301-1X-DIN
Each (In a Pack of 10)
$9.781(exc. GST)
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