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
Fuses - PCB
Fuses - PCB

46580 Products showing for Fuses & Circuit Breakers

76 / 999+
Limited stock
  • RS Stock No. 210-2105
  • Mfr. Part No. 3120-N551-H7T1-W19DG4-5A
Each
MYR160.68
Temporarily out of stock
  • RS Stock No. 103-4254
  • Mfr. Part No. 660GH-250
Each
MYR297.54
In Stock
Better World
  • RS Stock No. 219-9409
  • Mfr. Part No. LV432594
Each
MYR427.02
In Stock
Better World
  • RS Stock No. 254-6300
  • Mfr. Part No. C10N3TM100
Each
MYR3,189.95
In Stock
  • RS Stock No. 851-1630
  • Mfr. Part No. FRS-R-60
Each
MYR367.26
Temporarily out of stock
  • RS Stock No. 207-173
  • Mfr. Part No. A9R21463
Each
MYR3,188.49
Temporarily out of stock
  • RS Stock No. 259-853
  • Mfr. Part No. 288943 Z-D02/SE-35
1 Pack of 12
MYR28.60
In Stock
  • RS Stock No. 285-370
  • Mfr. Part No. PU-10KD05KBTA
Each
MYR48.62
In Stock
  • RS Stock No. 177-5095
  • Mfr. Part No. 2CSF204201R4400 F204 A S-40/0,5
Each
MYR1,101.50
In Stock
  • RS Stock No. 611-8999
Each (In a Pack of 10)
MYR5.438
In Stock
Better World
  • RS Stock No. 248-3702
  • Mfr. Part No. A9R35263
Each
MYR2,877.51
Temporarily out of stock
Better World
  • RS Stock No. 776-3357
  • Mfr. Part No. A9F76116
Each
MYR422.65
Last RS stock
  • RS Stock No. 173-9741
  • Mfr. Part No. 7030.3250
Each (In a Box of 10)
MYR49.482
In Stock
  • RS Stock No. 563-441
Each (In a Pack of 10)
MYR1.45
In Stock
  • RS Stock No. 272-0232
  • Mfr. Part No. 3VA9484-0QC00
Each (In a Pack of 4)
MYR193.993
Temporarily out of stock
  • RS Stock No. 339-518
  • Mfr. Part No. C10M1TM063
Each
MYR1,729.47
In Stock
  • RS Stock No. 181-8880
  • Mfr. Part No. C10M8
Each
MYR7.61
In Stock
  • RS Stock No. 136-7777
  • Mfr. Part No. 2CSR275151R1105 DSE201 M B10 A30 - N Blue
Each
MYR659.98
In Stock
  • RS Stock No. 303-281
  • Mfr. Part No. 787-3668
Each
MYR1,671.91
Temporarily out of stock
  • RS Stock No. 225-6117
  • Mfr. Part No. 2CSF204001R1950 F204 AC-125/0,03
Each
MYR6,719.22
Results per page