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

49136 Products showing for Fuses & Circuit Breakers

1 of 999+
RS PRO 1A T Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 414-027
Each (In a Pack of 10)
SGD1.535(exc. GST)
Better World
Schneider Electric iID RCCB, 40A, 2 Pole, 30mA
  • RS Stock No. 734-9349
  • Mfr. Part No. A9R11240
Each
SGD269.63(exc. GST)
Littelfuse 15A Blue Blade Car Fuse, 32V dc
  • RS Stock No. 787-4120
  • Mfr. Part No. 0287015.PXCN
Each (In a Pack of 10)
SGD0.472(exc. GST)
Littelfuse PC Board Non Resettable Fuse, Radial 1A, 250V ac
  • RS Stock No. 895-1666
  • Mfr. Part No. 37211000001
Each (In a Pack of 10)
SGD1.009(exc. GST)
Eaton 10A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-0966
  • Mfr. Part No. S500-10-R
Each (In a Pack of 10)
SGD0.389(exc. GST)
Littelfuse 10A Inline Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 878-3882
  • Mfr. Part No. 01500274Z
Each (In a Pack of 10)
SGD4.907(exc. GST)
Eaton xEffect MCB, 3P, 32A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 624-0399
  • Mfr. Part No. 278876 FAZ-C32/3
Each
SGD178.19(exc. GST)
ABB Cover for use with DDA Series
  • RS Stock No. 614-0867
  • Mfr. Part No. 2CDL200001R0004 - PS-END0
1 Bag of 2
SGD6.13(exc. GST)
RS PRO 2A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-609
Each (In a Pack of 10)
SGD0.491(exc. GST)
Mersen 2A FF Cartridge Fuse, 10 x 38mm
  • RS Stock No. 136-0604
  • Mfr. Part No. Q1014567 / FR10GR69V2
Each
SGD16.50(exc. GST)
RS PRO 800mA F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 177-8052
1 Box of 1000
SGD458.08(exc. GST)
Eaton 160mA T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-1622
  • Mfr. Part No. S506-160-R
Each (In a Pack of 10)
SGD0.918(exc. GST)
Littelfuse 20A Panel Mount Fuse Holder for 6.35 x 32mm Fuse, 1P, 250V ac
  • RS Stock No. 878-1962
  • Mfr. Part No. 03453LS8H
Each
SGD9.31(exc. GST)
SIBA 11A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 736-1431
  • Mfr. Part No. 50-199-06/11A
Each
SGD28.84(exc. GST)
Wickmann 30A Black Bolt Down Car Fuse, 32V dc
  • RS Stock No. 174-0742
  • Mfr. Part No. 0498030.M
Each (In a Pack of 10)
SGD2.874(exc. GST)
Socomec 6A Ceramic Cartridge Fuse, 14 x 51mm
  • RS Stock No. 179-9658
  • Mfr. Part No. 60520006
Each (In a Box of 10)
SGD15.197(exc. GST)
Better World
Schneider Electric iID RCCB, 100A, 2 Pole, 30mA, Type AC
  • RS Stock No. 806-7297
  • Mfr. Part No. A9R11291
Each
SGD487.40(exc. GST)
SIBA 25A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 314-4838
  • Mfr. Part No. 50-179-06/25A
Each (In a Pack of 5)
SGD15.986(exc. GST)
Eaton xEffect FAZ MCB, 1P, 15A Curve C, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 258-736
  • Mfr. Part No. 278560 FAZ-C15/1
Each
SGD70.77(exc. GST)
Eaton RCD, 6A, 2 Pole, 30mA, Type C, 230V
  • RS Stock No. 922-8692
  • Mfr. Part No. 236022 PKNM-6/1N/C/003-A-MW
Each
SGD208.62(exc. GST)
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