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

304 / 999+
Temporarily out of stock
  • RS Stock No. 147-775
  • Mfr. Part No. 3VA5210-5EC61-0AA0
Each
MYR4,178.91
In Stock
  • RS Stock No. 922-7009
  • Mfr. Part No. 278563 FAZ-C25/1
Each
MYR146.14
In Stock
  • RS Stock No. 412-447
  • Mfr. Part No. TDC11-500MA
Each (In a Pack of 10)
MYR7.831
In Stock
  • RS Stock No. 851-1438
  • Mfr. Part No. S500-40-R
Each
MYR31.59
Temporarily out of stock
  • RS Stock No. 177-5093
  • Mfr. Part No. 2CSF204201R3900 F204 A S-100/0,3
Each
MYR1,405.37
In Stock
  • RS Stock No. 371-8552
  • Mfr. Part No. F-7155
Each (In a Pack of 5)
MYR21.208
Temporarily out of stock
  • RS Stock No. 266-3188
  • Mfr. Part No. 0 168 55
1 Box of 3
MYR557.94
Limited stock
Better World
  • RS Stock No. 772-1307
  • Mfr. Part No. 5SY4210-8
Each
MYR408.80
In Stock
  • RS Stock No. 201-6944
  • Mfr. Part No. 2CSR275080R1204 DS201 M C20 AC30
Each
MYR950.36
Temporarily out of stock
  • RS Stock No. 225-6139
  • Mfr. Part No. 2CSF204123R4400 F204 A-40/0.5
Each
MYR1,246.41
In Stock
Better World
  • RS Stock No. 256-4052
  • Mfr. Part No. A9MEM1591
Each
MYR6,198.72
In Stock
  • RS Stock No. 536-006
  • Mfr. Part No. 2882925
Each
MYR842.13
In Stock
  • RS Stock No. 786-5646
  • Mfr. Part No. 4 013 32
Each
MYR283.50
In Stock
Better World
  • RS Stock No. 791-2802
  • Mfr. Part No. A9A26969
Each
MYR804.22
In Stock
  • RS Stock No. 182-1378
  • Mfr. Part No. 200MT
Each
MYR339.90
Limited stock
Better World
  • RS Stock No. 211-2400
  • Mfr. Part No. M9F23306
Each
MYR543.85
In Stock
Better World
  • RS Stock No. 209-5968
  • Mfr. Part No. 5SL4216-7
Each
MYR358.10
In Stock
  • RS Stock No. 101-800
Each
MYR205.54
Temporarily out of stock
  • RS Stock No. 339-510
  • Mfr. Part No. SEE120C03
Each
MYR854.22
Temporarily out of stock
  • RS Stock No. 224-2520
  • Mfr. Part No. 49873420
Each
MYR597.65
Results per page