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

49110 Products showing for Fuses & Circuit Breakers

15 of 999+
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 63A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 654-982
  • Mfr. Part No. C11F6TM063L
Each
SGD855.66(exc. GST)
In Stock
RS PRO MCB, 2P, 16A Curve B, 240 → 415V AC, 10 kA Breaking Capacity
  • RS Stock No. 265-0160
Each
SGD32.02(exc. GST)
In Stock
Weidmüller 25A Slow-Blow Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 286-0189
  • Mfr. Part No. 2827990000
1 Box of 5
SGD48.58(exc. GST)
Temporarily out of stock
Eaton Fuse Holder Linking kit
  • RS Stock No. 229-079
  • Mfr. Part No. 63NHG000B/690
1 Pack of 3
SGD25.34(exc. GST)
In Stock
ABB S801 Circuit Breaker, 1P, 10A Curve C, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 287-6378
  • Mfr. Part No. 2CCS861001R0104
Each
SGD108.74(exc. GST)
Temporarily out of stock
ABB FH200 RCCB, 63A, 2 Pole, 30mA, Type A
  • RS Stock No. 186-3467
  • Mfr. Part No. 2CSF202124R1630
Each
SGD174.99(exc. GST)
In Stock
Eaton 10A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 703-8386
  • Mfr. Part No. C10G10
Each (In a Pack of 10)
SGD2.009(exc. GST)
Limited stock
SIBA 2A M Ceramic Cartridge Fuse, 5 x 25mm
  • RS Stock No. 267-3537
  • Mfr. Part No. 70-010-05/2A
Each (In a Pack of 5)
SGD8.11(exc. GST)
Temporarily out of stock
Eaton xEffect MCB, 4P, 63A Curve C, 400V AC, 60V DC, 25 kA Breaking Capacity
  • RS Stock No. 251-913
  • Mfr. Part No. 211797 AZ-4-C63
Each
SGD744.15(exc. GST)
Temporarily out of stock
RS PRO 3A Violet Blade Car Fuse, 32V dc
  • RS Stock No. 177-8133
Each (In a Pack of 50)
SGD0.358(exc. GST)
In Stock
Schurter 16A Panel Mount Fuse Holder for 5 x 20mm Fuse, 1P, 250V ac
  • RS Stock No. 337-1989
  • Mfr. Part No. 3101.0125
Each (In a Pack of 5)
SGD9.788(exc. GST)
Last RS stock
Schneider Electric, Compact MCCB 3P 16A, Breaking Capacity 16 kA
  • RS Stock No. 178-8085
  • Mfr. Part No. LV426150
Each
SGD205.40(exc. GST)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7807
  • Mfr. Part No. C16N3TM160
Each
SGD1,867.73(exc. GST)
In Stock
Better World
ABB Compact Home SH200 MCB, 1P, 10A Curve B, 440V AC, 60V DC, 6 kA Breaking Capacity
  • RS Stock No. 539-8144
  • Mfr. Part No. 2CDS211001R0105 SH201-B10
Each
SGD16.03(exc. GST)
Temporarily out of stock
Eaton xPole - PXL PXL MCB, 1P, 1A Curve B, 230V AC, 10 kA Breaking Capacity
  • RS Stock No. 256-259
  • Mfr. Part No. 236002 PXL-B1/1
Each
SGD30.05(exc. GST)
In Stock
Littelfuse 1A T Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-4678
  • Mfr. Part No. 0215001.MXP
Each (In a Pack of 10)
SGD1.756(exc. GST)
Temporarily out of stock
Eaton xComfort Distribution Board Enclosure, 24 Way
  • RS Stock No. 255-208
  • Mfr. Part No. 240732 BF-O-2/48-A
Each
SGD398.45(exc. GST)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 4P, 40A Curve C, 100 → 130V AC, 12 → 250V DC, 6 kA Breaking Capacity
  • RS Stock No. 734-9188
  • Mfr. Part No. A9F77440
Each
SGD498.20(exc. GST)
Temporarily out of stock
Eaton xEffect FAZ MCB, 3+N, 6A Curve C, 440V AC, 60V DC, 7.5 kA Breaking Capacity
  • RS Stock No. 253-966
  • Mfr. Part No. 241140 FAZT-C6/3N
Each
SGD540.21(exc. GST)
Being discontinued
RS PRO 6A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 177-8126
Each (In a Pack of 50)
SGD0.607(exc. GST)
1
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