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

2306 / 999+
Better World
  • RS Stock No. 270-3681
  • Mfr. Part No. 3VA2025-7JQ32-0AA0
Each
MYR10,679.72
  • RS Stock No. 269-7193
  • Mfr. Part No. 3VA9473-0JC23
Each (In a Pack of 3)
MYR919.903
  • RS Stock No. 259-9593
  • Mfr. Part No. 1SCA022770R3140
Each
MYR1,494.64
Better World
  • RS Stock No. 270-4528
  • Mfr. Part No. 3VA2125-6HK46-0AA0
Each
MYR5,310.45
  • RS Stock No. 259-3985
  • Mfr. Part No. 1SDA072047R1
Each
MYR46,586.08
  • RS Stock No. 270-4845
  • Mfr. Part No. 3VA2580-5MN32-0AA0
Each
MYR24,226.03
  • RS Stock No. 178-1127
  • Mfr. Part No. V1006613 / BTCP69V63M80
Each (In a Pack of 10)
MYR197.263
  • RS Stock No. 259-3903
  • Mfr. Part No. 1SDA071932R1
Each
MYR298,107.45
Better World
  • RS Stock No. 259-3228
  • Mfr. Part No. 1SDA071106R1
Each
MYR63,282.86
Better World
  • RS Stock No. 270-4017
  • Mfr. Part No. 3VA2110-8HK46-0AA0
Each
MYR6,539.54
Better World
  • RS Stock No. 209-7465
  • Mfr. Part No. 5SL4401-7
Each
MYR949.61
  • RS Stock No. 247-1868
  • Mfr. Part No. 33733
Each
MYR1,987.77
  • RS Stock No. 259-3729
  • Mfr. Part No. 1SDA071704R1
Each
MYR72,017.94
  • RS Stock No. 260-7491
  • Mfr. Part No. C10W36E100
Each
MYR16,141.99
  • RS Stock No. 269-7183
  • Mfr. Part No. 3VA9374-0JF60
Each (In a Pack of 4)
MYR274.878
Better World
  • RS Stock No. 270-3820
  • Mfr. Part No. 3VA2040-8KQ36-0AA0
Each
MYR12,398.80
  • RS Stock No. 174-0889
  • Mfr. Part No. RF0323-000
Each (In a Pack of 200)
MYR2.104
Better World
  • RS Stock No. 211-5994
  • Mfr. Part No. 3VA1116-6EF42-0AA0
Each
MYR5,674.84
Better World
  • RS Stock No. 271-9343
  • Mfr. Part No. 3VA1140-6GF46-0AA0
Each
MYR2,389.56
  • RS Stock No. 236-6639
  • Mfr. Part No. 1SDA068191R1 XT2 P FP HR
Each
MYR1,758.20
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