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

59 of 999+
Hager RCBO, 16A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type A-HI
  • RS Stock No. 251-2021
  • Mfr. Part No. ADH716F
Each
$579.73(exc. GST)
Limitor Thermal Fuse +99°C 15 A, 250V ac
  • RS Stock No. 797-6064
  • Mfr. Part No. SF 094 R
Each (In a Pack of 10)
$2.585(exc. GST)
Eaton xComfort Distribution Board Enclosure, 8 Way
  • RS Stock No. 257-828
  • Mfr. Part No. 280346 BC-O-1/8-ECO
Each
$91.06(exc. GST)
Schneider Electric Acti9 3 Phase Distribution Board, 12 Way, 250 A
  • RS Stock No. 207-336
  • Mfr. Part No. SE36B250
Each
$1,222.27(exc. GST)
Hager CZ001 RCCB, 6A, 2 Pole, Type AC, 240V
  • RS Stock No. 599-737
  • Mfr. Part No. CZ001
Each
$177.33(exc. GST)
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 4A Current Rating
  • RS Stock No. 458-8712
  • Mfr. Part No. 1180-01-4A
Each
$37.74(exc. GST)
Eaton 160A Bolted Tag Fuse, 415V ac, 92mm
  • RS Stock No. 181-8853
  • Mfr. Part No. 160MJ31-7
Each
$166.63(exc. GST)
Eaton 315A Bolted Tag Fuse, MMT, 500 V dc, 690V ac, 85mm
  • RS Stock No. 182-1497
  • Mfr. Part No. 315MMT
Each
$1,460.62(exc. GST)
Schneider Electric Acti 9 3 Phase Distribution Board, 48 Way, 160 A
  • RS Stock No. 230-6807
  • Mfr. Part No. MB248D31X15
Each
$1,936.89(exc. GST)
Eaton 2A Grey Blade Car Fuse, 32V dc
  • RS Stock No. 849-5620
  • Mfr. Part No. ATC-2
Each
$7.32(exc. GST)
Littelfuse 0.1A Resettable Fuse, 30V dc
  • RS Stock No. 546-3030
  • Mfr. Part No. MICROSMD010F-2
Each (In a Pack of 20)
$0.589(exc. GST)
Schneider Electric Acti 9 C60H MCB, 1P, 10A Curve C
  • RS Stock No. 230-6685
  • Mfr. Part No. A9N61508
Each
$91.12(exc. GST)
Legrand 4A Ceramic Cartridge Fuse, 8 x 32mm
  • RS Stock No. 266-3088
  • Mfr. Part No. 0 124 04
1 Box of 10
$65.20(exc. GST)
ETA Thermal Circuit Breaker - 2 5700 Single Pole 250V Voltage Rating Panel Mount, 6A Current Rating
  • RS Stock No. 729-2754
  • Mfr. Part No. 2-5700-IG2-P10-DD-000040-6A
Each
$70.57(exc. GST)
Omron Busbar
  • RS Stock No. 111-3528
  • Mfr. Part No. PYDN-7.75-200R
Each
$30.62(exc. GST)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 32A Curve D, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 339-313
  • Mfr. Part No. SE10D332
Each
$255.06(exc. GST)
ABB FH200 RCCB, 63A, 4 Pole, 30mA, Type AC
  • RS Stock No. 183-3635
  • Mfr. Part No. 2CSF204023R1630
Each
$311.08(exc. GST)
Mersen 160A NH Fuse, NH00, 690V ac
  • RS Stock No. 377-0178
  • Mfr. Part No. J322169
Each
$118.06(exc. GST)
Schneider Electric Resi9 Resi9 XE MCB, 1P, 16A, 230V AC
  • RS Stock No. 358-445
  • Mfr. Part No. R9ECL616
Each
$231.10(exc. GST)
Littelfuse 0.5A Resettable Fuse, 15V dc
  • RS Stock No. 787-4218
  • Mfr. Part No. 1812L050PR
Each (In a Pack of 10)
$0.40(exc. GST)
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