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

34863 Products showing for Fuses & Circuit Breakers

1 of 999+
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 240 V AC, 72 V DC, 6 kA Breaking
  • RS Stock No. 790-8853
  • Mfr. Part No. A9F44110
Each
$18.61(exc. GST)
In Stock
RS PRO 30A Rail Mount Fuse Holder for 5 x 20mm Fuse, 1P, 500V
  • RS Stock No. 242-0497
1 Bag of 10
$79.77(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 6 A, Type C, 240 V AC, 72 V DC, 6 kA Breaking Capacity
  • RS Stock No. 790-8850
  • Mfr. Part No. A9F44106
Each
$19.54(exc. GST)
Being discontinued
RS PRO 1A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-380
Each (In a Pack of 10)
$0.82(exc. GST)
In Stock
RS PRO F, T Fuse Kit
  • RS Stock No. 893-8530
Each
$160.22(exc. GST)
In Stock
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-3108
Each (In a Pack of 10)
$0.609(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 2 A, Type C, 240 V ac AC, 72 V DC, 6 kA Breaking
  • RS Stock No. 230-6651
  • Mfr. Part No. A9F44102
Each
$18.61(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 25 A, Type C, 240 V AC, 72 V DC, 6 kA Breaking
  • RS Stock No. 790-8869
  • Mfr. Part No. A9F44125
Each
$19.54(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 10A Current Rating
  • RS Stock No. 273-0860
  • Mfr. Part No. 1658-G21-02-P10-10A
Each
$13.47(exc. GST)
In Stock
RS PRO Rail Mount Fuse Holder
  • RS Stock No. 501-871
Each
$28.86(exc. GST)
In Stock
ABB Earth & Neutral Terminal Bar for use with MCB
  • RS Stock No. 232-0026
  • Mfr. Part No. GJI2320131R0001 SZ-KLB 8
1 Box of 1
$13.12(exc. GST)
In Stock
Siemens ALPHA Busbar
  • RS Stock No. 226-0832
  • Mfr. Part No. 8GK9733-0KK20
Each
$48.11(exc. GST)
Being discontinued
RS PRO 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-431
Each (In a Pack of 10)
$0.82(exc. GST)
In Stock
ETA Thermal Circuit Breaker - 1658 Single Pole 250V Voltage Rating Panel Mount, 15A Current Rating
  • RS Stock No. 273-0882
  • Mfr. Part No. 1658-G21-02-P10-15A
Each
$12.97(exc. GST)
In Stock
Schneider Electric Acti9 IC60N Miniature Circuit Breaker, 1-Pole, 4 A, Type C, 240 V ac AC, 72 V DC, 6 kA Breaking
  • RS Stock No. 230-6652
  • Mfr. Part No. A9F44104
Each
$18.61(exc. GST)
In Stock
RS PRO 10A Inline Fuse Holder for 5x20mm Fuse, 250V
  • RS Stock No. 237-5259
Each
$5.94(exc. GST)
Limited stock
ABB SN201S SN201 Miniature Circuit Breaker, 1-Pole, 10 A, Type C, 230 V AC, 4.5 kA Breaking Capacity
  • RS Stock No. 186-3478
  • Mfr. Part No. 2CSS245202R0104
Each
$30.19(exc. GST)
In Stock
ABB Plastic Consumer Unit, 63 A IP65 MISTRAL65
  • RS Stock No. 183-3758
  • Mfr. Part No. 1SLM006500A2212
Each
$53.86(exc. GST)
In Stock
RS PRO 30A Inline Fuse Holder for ATO/ATC 19x18.6mm Fuse, 32V dc
  • RS Stock No. 284-6489
Each (In a Pack of 5)
$13.478(exc. GST)
In Stock
ABB System Pro M Compact S200 Miniature Circuit Breaker, 3-Pole, 50 A, Type C, 400 V ac AC, 6 kA Breaking Capacity
  • RS Stock No. 746-7784
  • Mfr. Part No. 2CDS253001R0504 S203-C50
Each
$126.45(exc. GST)
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