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

46578 Products showing for Fuses & Circuit Breakers

117 / 999+
In Stock
ABB RCBO, 16A Current Rating, 4P Poles, Type C
  • RS Stock No. 237-5098
  • Mfr. Part No. 2CSR254001R1164
Each
MYR1,535.03
In Stock
Eaton xEffect MCB, 3P, 6A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 624-0428
  • Mfr. Part No. 278867 FAZ-C6/3
Each
MYR660.03
Temporarily out of stock
ABB S800U MCB, 2P, 80A, Type Z, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-112
  • Mfr. Part No. 2CCS862017R0805
Each
MYR1,714.40
In Stock
Eaton 5A F Ceramic Cartridge Fuse, 6.3 x 25mm
  • RS Stock No. 412-576
  • Mfr. Part No. TDC180-5A
Each (In a Pack of 10)
MYR4.314
In Stock
Littelfuse 11A F Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 738-3197
  • Mfr. Part No. 0FLU011.T
Each
MYR286.45
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 3P 100A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 212-0266
  • Mfr. Part No. LV433245
Each
MYR4,544.54
In Stock
Eaton 200A British Standard Fuse, B2, 660V ac, 111mm
  • RS Stock No. 415-294
  • Mfr. Part No. TF200
Each
MYR538.54
In Stock
Eaton 50mA T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-1666
  • Mfr. Part No. S506-50-R
Each (In a Pack of 10)
MYR2.346
In Stock
Schurter 16A Panel Mount Fuse Holder for 6.3 x 32mm Fuse, 1P, 250V ac
  • RS Stock No. 216-4285
  • Mfr. Part No. 7093.0110
Each
MYR271.89
In Stock
Eaton xEffect MCB, 1P, 2A Curve B
  • RS Stock No. 230-0887
  • Mfr. Part No. 177376 FAZ6-B2/1
Each
MYR128.21
Temporarily out of stock
Better World
ABB, XT4N MCCB 4P 250A, Fixed Mount
  • RS Stock No. 236-6617
  • Mfr. Part No. 1SDA068152R1 XT4N 250 Ekip I 250A FF
Each
MYR6,729.37
Temporarily out of stock
Schneider Electric, ComPacT NSX MCCB 3P 100A, Fixed Mount
  • RS Stock No. 254-6292
  • Mfr. Part No. C10H3
Each
MYR2,278.43
In Stock
Hager 10A Cartridge Fuse, 10 x 38mm
  • RS Stock No. 250-8603
  • Mfr. Part No. LF310PV
Each (In a Pack of 10)
MYR87.341
Temporarily out of stock
Better World
ABB, XT4H MCCB 3P 63A, Fixed Mount
  • RS Stock No. 236-6788
  • Mfr. Part No. 1SDA068517R1 XT4H 160 Ekip I 63A FF
Each
MYR4,652.06
In Stock
Schurter 6.3A T Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 167-8121
  • Mfr. Part No. 0034.3125
Each (In a Pack of 10)
MYR1.994
In Stock
Bulgin 6.3A Base Mount Fuse Holder for 5 x 20mm Fuse, 250V ac
  • RS Stock No. 782-3702
  • Mfr. Part No. FX0267
Each
MYR20.39
In Stock
Electro PJP Earth Rod W. 12mm x 420mm H. 420mm
  • RS Stock No. 263-9091
  • Mfr. Part No. 2223Drill
Each
MYR254.29
In Stock
Hinode Electric Co Ltd 315A Bolted Tag Fuse, 82mm
  • RS Stock No. 103-4255
  • Mfr. Part No. 660GH-315
Each
MYR388.57
Temporarily out of stock
Siemens 5SV43 RCCB, 63A, 2 Pole, 30mA, Type AC, 230V
  • RS Stock No. 328-512
  • Mfr. Part No. 5SV4316-0MB
Each
MYR1,716.45
In Stock
Eaton 500mA F Ceramic Cartridge Fuse, 5 x 20mm
  • RS Stock No. 537-1559
  • Mfr. Part No. S501-500-R
Each (In a Pack of 10)
MYR21.071
1
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