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

153 / 999+
In Stock
Better World
  • RS Stock No. 791-3225
  • Mfr. Part No. A9F53320
Each
MYR865.83
Temporarily out of stock
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  • Mfr. Part No. RS32H
1 Pack of 10
MYR1,455.33
In Stock
Better World
  • RS Stock No. 211-2350
  • Mfr. Part No. M9F21420
Each
MYR1,100.90
In Stock
Better World
  • RS Stock No. 734-9147
  • Mfr. Part No. A9F77232
Each
MYR654.80
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Better World
  • RS Stock No. 219-9167
  • Mfr. Part No. M9F43215
Each
MYR1,306.33
Temporarily out of stock
  • RS Stock No. 627-151
  • Mfr. Part No. 3NC1405
1 Pack of 10
MYR621.36
Temporarily out of stock
  • RS Stock No. 261-920
  • Mfr. Part No. LP-CC-3
1 Pack of 10
MYR2,679.33
In Stock
  • RS Stock No. 787-4372
  • Mfr. Part No. 277.6306.0001
Each
MYR73.16
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  • RS Stock No. 136-0615
  • Mfr. Part No. E1014580 / FR10GR69V20
Each
MYR73.13
Temporarily out of stock
  • RS Stock No. 878-1353
  • Mfr. Part No. 03455LS8H
Each
MYR24.41
Temporarily out of stock
  • RS Stock No. 207-2729
  • Mfr. Part No. 2906781
Each
MYR762.41
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  • RS Stock No. 230-2960
  • Mfr. Part No. A211025
Each (In a Pack of 10)
MYR11.302
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  • RS Stock No. 396-118
  • Mfr. Part No. 3NA3832
Each (In a Pack of 3)
MYR98.617
In Stock
  • RS Stock No. 414-881
  • Mfr. Part No. GSGB40
Each (In a Pack of 5)
MYR155.108
Temporarily out of stock
  • RS Stock No. 260-8208
  • Mfr. Part No. C63F4TM500D1
Each
MYR24,047.20
In Stock
Better World
  • RS Stock No. 219-8937
  • Mfr. Part No. KSB100SM412
Each
MYR2,788.52
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Each (In a Pack of 3)
MYR12.22
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  • RS Stock No. 668-6073
Each (In a Pack of 10)
MYR2.761
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  • RS Stock No. 517-6922
  • Mfr. Part No. RGEF500
Each (In a Pack of 5)
MYR2.594
In Stock
  • RS Stock No. 237-5195
  • Mfr. Part No. 2CSR274001R1255
Each
MYR2,028.15
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