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

331 / 999+
In Stock
  • RS Stock No. 703-8721
  • Mfr. Part No. 63NHG02B
Each
MYR61.98
Temporarily out of stock
  • RS Stock No. 602-260
  • Mfr. Part No. MMN210
Each
MYR1,377.54
Temporarily out of stock
  • RS Stock No. 230-1020
  • Mfr. Part No. 177474 FAZ6-D2,5/3N
Each
MYR846.78
Temporarily out of stock
Better World
  • RS Stock No. 772-1271
  • Mfr. Part No. 5SY4125-8
Each
MYR267.70
In Stock
  • RS Stock No. 251-3438
  • Mfr. Part No. 1SCA022627R1710
1 Box of 3
MYR149.91
In Stock
  • RS Stock No. 395-563
  • Mfr. Part No. 3NA3252
Each (In a Pack of 3)
MYR165.613
Temporarily out of stock
  • RS Stock No. 252-3747
  • Mfr. Part No. 57029020
Each
MYR48.14
Temporarily out of stock
  • RS Stock No. 177-8054
1 Bag of 1000
MYR840.46
In Stock
  • RS Stock No. 231-9327
  • Mfr. Part No. 1SDA100345R1 XT5N 400 TMA 400-4000 3pFF
Each
MYR5,027.57
Temporarily out of stock
  • RS Stock No. 120-806
  • Mfr. Part No. 155484 NZM2-XSH-12-120-NA
Each
MYR5,615.86
Temporarily out of stock
  • RS Stock No. 654-646
  • Mfr. Part No. LV833643SP
Each
MYR2,944.96
Temporarily out of stock
  • RS Stock No. 213-2411
  • Mfr. Part No. 8GK4702-4KK12
Each
MYR1,115.58
Temporarily out of stock
Better World
  • RS Stock No. 212-0246
  • Mfr. Part No. LV431540
Each
MYR7,259.74
In Stock
  • RS Stock No. 825-6002
  • Mfr. Part No. P1MB4PD25
Each
MYR617.83
Temporarily out of stock
Better World
  • RS Stock No. 270-4755
  • Mfr. Part No. 3VA2163-7JQ46-0AA0
Each
MYR12,610.36
Temporarily out of stock
  • RS Stock No. 201-369
  • Mfr. Part No. 2CDS383103R0157
Each
MYR3,784.21
Temporarily out of stock
Better World
  • RS Stock No. 156-775
  • Mfr. Part No. 3VA2463-7KQ32-0AA0
Each
MYR25,377.10
In Stock
  • RS Stock No. 738-2933
  • Mfr. Part No. 0451015.MRL
Each (In a Pack of 10)
MYR7.227
Temporarily out of stock
  • RS Stock No. 300-014
  • Mfr. Part No. 5SJ4115-8HG42
Each
MYR421.48
Temporarily out of stock
Better World
  • RS Stock No. 209-6578
  • Mfr. Part No. 5SV3644-4KK14
Each
MYR4,132.04
Results per page