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

35151 Products showing for Fuses & Circuit Breakers

199 of 999+
Eaton 50A Tag Fuse, 27 x 50mm, 500V
  • RS Stock No. 228-892
  • Mfr. Part No. 50D33Q
1 Pack of 5
$24.81(exc. GST)
Schneider Electric EasyPact Electronic Circuit Breaker 320A, Fixed
  • RS Stock No. 122-445
  • Mfr. Part No. LV540335
Each
$1,792.18(exc. GST)
Mersen 2A Slow-Blow Ceramic Cartridge Fuse, 14 x 51mm
  • RS Stock No. 247-2796
  • Mfr. Part No. J211033
1 Box of 10
$200.72(exc. GST)
WAGO 1, 3 Phase Distribution Board, 7 Way, 25 A
  • RS Stock No. 240-8059
  • Mfr. Part No. 899-631/100-000
Each
$195.00(exc. GST)
RS PRO 4A F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 911-3461
Each (In a Pack of 10)
$0.359(exc. GST)
WAGO 30A Fuse Holder for 10 x 38mm Fuse, 1P, 24V dc
  • RS Stock No. 279-1656
  • Mfr. Part No. 811-414
Each
$59.95(exc. GST)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 160A, Fixed Mount
  • RS Stock No. 254-6354
  • Mfr. Part No. C25F3TM160
Each
$2,383.15(exc. GST)
RS PRO HBC, LBC Fuse Kit
  • RS Stock No. 420-252
1 Kit
$167.93(exc. GST)
3.15A Cartridge Fuse, 51 x 537mm
  • RS Stock No. 263-454
  • Mfr. Part No. 36TDQSJ3.15
Each
$581.57(exc. GST)
Wickmann 3A Resettable Fuse, 15V dc
  • RS Stock No. 174-0698
  • Mfr. Part No. 2920L300/15DR
Each (In a Pack of 10)
$1.129(exc. GST)
Eaton 35 → 60A Ferrule Fuse Block, 600V
  • RS Stock No. 182-1697
  • Mfr. Part No. JM60060-3CR
Each
$399.95(exc. GST)
Schneider Electric, PowerPact Circuit breaker 1P 125A, Breaking Capacity 35 kA, DIN Rail Mount
  • RS Stock No. 357-683
  • Mfr. Part No. BGF16125
Each
$2,013.26(exc. GST)
Schurter Thermal Circuit Breaker - TA35 2 Pole 240V ac Voltage Rating, 3A Current Rating
  • RS Stock No. 228-4356
  • Mfr. Part No. TA35-CBTWF030C0
1 Box of 10
$321.00(exc. GST)
Schneider Electric Altivar Process Modular Busbar Kit
  • RS Stock No. 119-420
  • Mfr. Part No. VW3A98BBMAAB
Each
$2,198.91(exc. GST)
Better World
RS PRO 20A F Ceramic Cartridge Fuse, 10 x 85mm
  • RS Stock No. 239-4977
Each (In a Pack of 10)
$35.617(exc. GST)
Schurter SMD Non Resettable Fuse 2A, 32 V ac, 63V dc
  • RS Stock No. 665-7356P
  • Mfr. Part No. 3413.0119.22.
Each (Supplied on a Reel)
$1.017(exc. GST)
Better World
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, Acti 9 Range
  • RS Stock No. 790-9294
  • Mfr. Part No. A9D11816
Each
$302.07(exc. GST)
ABB Cover for use with Gale'O Enclosures
  • RS Stock No. 191-9446
  • Mfr. Part No. 1SPE007714F0701 798820
Each
$6.15(exc. GST)
Eaton 100A Rail Mount Fuse Holder for A3 Fuse, 1P, 690V ac
  • RS Stock No. 247-9262
  • Mfr. Part No. CM100FW
Each
$113.60(exc. GST)
Legrand Electronic Circuit breaker, 30A, 4 Pole, 440V
  • RS Stock No. 255-2315
  • Mfr. Part No. 401010
Each
$788.52(exc. GST)
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