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.

46580 Products showing for Fuses & Circuit Breakers

23 / 999+
In Stock
  • RS Stock No. 864-4314
  • Mfr. Part No. 242200 PLSM-C6-MW
Each
MYR143.97
In Stock
  • RS Stock No. 207-2805
  • Mfr. Part No. 2909909
Each
MYR223.87
Temporarily out of stock
Better World
  • RS Stock No. 210-9286
  • Mfr. Part No. 3VA9113-0RS20
Each
MYR6,579.14
Temporarily out of stock
  • RS Stock No. 177-5089
  • Mfr. Part No. 2CSF204201R2900 F204 A S-100/0,1
Each
MYR2,291.89
In Stock
  • RS Stock No. 703-8386
  • Mfr. Part No. C10G10
Each (In a Pack of 10)
MYR7.129
Temporarily out of stock
  • RS Stock No. 181-8840
  • Mfr. Part No. LST2
Each
MYR36.39
In Stock
  • RS Stock No. 269-3875
  • Mfr. Part No. 8020.5075
Each
MYR4.32
Temporarily out of stock
Better World
  • RS Stock No. 151-1205
  • Mfr. Part No. 5SU1356-6KK06
Each
MYR439.83
In Stock
  • RS Stock No. 851-1836
  • Mfr. Part No. S506-15-R
Each (In a Pack of 5)
MYR8.272
In Stock
  • RS Stock No. 849-5617
  • Mfr. Part No. AGX-3
Each
MYR9.79
In Stock
  • RS Stock No. 787-4410
  • Mfr. Part No. 0298200.ZXEH
Each
MYR28.02
Limited stock
  • RS Stock No. 176-9104
  • Mfr. Part No. P82 55 05100
Each
MYR25.37
Temporarily out of stock
Better World
  • RS Stock No. 209-6941
  • Mfr. Part No. 3VA2325-5HL32-0AA0
Each
MYR7,073.81
Temporarily out of stock
  • RS Stock No. 746-8191
  • Mfr. Part No. 2CDS273001R0631 S203M-D63
Each
MYR612.82
Limited stock
  • RS Stock No. 894-9593
  • Mfr. Part No. 04773.15MXP
Each (In a Pack of 5)
MYR9.262
Temporarily out of stock
  • RS Stock No. 144-4789
  • Mfr. Part No. NGT332
Each
MYR1,027.20
Temporarily out of stock
Better World
  • RS Stock No. 225-8763
  • Mfr. Part No. 5SU1354-7LB40
Each
MYR1,698.65
In Stock
Better World
  • RS Stock No. 772-1262
  • Mfr. Part No. 5SY4125-7
Each
MYR147.32
In Stock
Better World
  • RS Stock No. 622-0036
  • Mfr. Part No. 5SY4104-7
Each
MYR169.66
Being discontinued
  • RS Stock No. 174-7958
Each (In a Box of 500)
MYR1.048
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