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

37 of 999+
Schurter Thermal Magnetic Circuit Breaker - Single Pole 240 V ac, 32V dc Voltage Rating, 15A Current Rating
  • RS Stock No. 539-3773
  • Mfr. Part No. 4404.0010
Each
$8.00(exc. GST)
Eaton 125A Bolted Tag Fuse, 18 x 56mm, 150 V dc, 240 V ac, 41mm
  • RS Stock No. 182-1771
  • Mfr. Part No. 125LET
Each
$50.88(exc. GST)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 10A Curve C, 100 → 133V AC, 12 → 48V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8853
  • Mfr. Part No. A9F44110
Each
$20.07(exc. GST)
RS PRO 8A F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 177-8117
Each (In a Pack of 20)
$0.927(exc. GST)
Eaton 100A Cartridge Fuse, 23 x 57mm
  • RS Stock No. 243-485
  • Mfr. Part No. 100KR85
1 Pack of 20
$450.64(exc. GST)
Schurter 5A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 789-7801
  • Mfr. Part No. 0001.2511
Each (In a Bag of 10)
$1.569(exc. GST)
Eaton 63A British Standard Fuse, LET, 150 V dc, 240V ac, 41.8mm
  • RS Stock No. 156-8838
  • Mfr. Part No. 63LET
Each
$31.52(exc. GST)
Clipsal Electrical MAX9 MX9MC MCB, 1P, 2A, 415V AC, 6000 A Breaking Capacity
  • RS Stock No. 282-2932
  • Mfr. Part No. MX9MC132
Each
$7.62(exc. GST)
Siemens 25A F Cartridge Fuse, 10 x 38mm
  • RS Stock No. 232-2030
  • Mfr. Part No. 3NW2250-0HG
Each (In a Pack of 10)
$48.271(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
$33.21(exc. GST)
RS PRO 10A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 414-061
Each (In a Pack of 10)
$3.833(exc. GST)
RS PRO 1A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-419
Each (In a Pack of 10)
$1.829(exc. GST)
Siemens 5SM21 RCCB, 16A, 2 Pole, 10mA, Type A, 230V
  • RS Stock No. 328-413
  • Mfr. Part No. 5SM2121-6
Each
$320.49(exc. GST)
Schurter 8A F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 269-3877
  • Mfr. Part No. 8020.5077
Each
$2.06(exc. GST)
TE Connectivity Thermal Circuit Breaker - W58 Single Pole 50 V dc, 250V ac Voltage Rating, 2A Current Rating
  • RS Stock No. 782-8000
  • Mfr. Part No. W58-XC4C12A-2
Each
$22.28(exc. GST)
Eaton 30A Bolt In Mount 6.3 x 32mm Fuse Block, 300V ac/dc
  • RS Stock No. 852-7231
  • Mfr. Part No. S-8301-1-R
Each
$22.52(exc. GST)
Schurter T12 Series Circuit Breaker Cover, IP54
  • RS Stock No. 173-9852
  • Mfr. Part No. 4400.0405
Each (In a Box of 100)
$6.364(exc. GST)
Legrand 2A F Ceramic Cartridge Fuse, 8.5 x 32mm
  • RS Stock No. 293-8266
  • Mfr. Part No. 0 123 02
Each (In a Pack of 10)
$6.488(exc. GST)
Eaton 16A Bolted Tag Fuse, 240V ac, 35mm
  • RS Stock No. 181-8712
  • Mfr. Part No. LST16
Each
$18.55(exc. GST)
Siemens 10A Diazed Fuse, gG, 750V ac/dc
  • RS Stock No. 163-272
  • Mfr. Part No. 5SD604
1 Pack of 5
$314.46(exc. GST)
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