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

143 / 999+
  • RS Stock No. 541-4713
  • Mfr. Part No. 021506.3MXP
Each (In a Pack of 10)
MYR4.684
  • RS Stock No. 263-095
  • Mfr. Part No. PXS24E02A002 PXS24E-e2/F
Each
MYR197.45
  • RS Stock No. 537-7440
  • Mfr. Part No. 2CSF204001R3250 F204 AC-25/0,3
Each
MYR767.21
Better World
  • RS Stock No. 248-4083
  • Mfr. Part No. KTB0630DC4
Each
MYR19,427.58
Better World
  • RS Stock No. 219-9025
  • Mfr. Part No. A9N26946
Each
MYR431.34
Better World
  • RS Stock No. 219-9132
  • Mfr. Part No. M9F22316
Each
MYR940.89
  • RS Stock No. 163-3995
  • Mfr. Part No. 74273703
Each (In a Tray of 100)
MYR20.273
  • RS Stock No. 101-749
Each
MYR243.75
  • RS Stock No. 237-6085
  • Mfr. Part No. 1SDA066465R1 MOE XT2-XT4 110...125VAC/D
Each
MYR4,388.01
  • RS Stock No. 101-744
Each
MYR634.37
Better World
  • RS Stock No. 178-7807
  • Mfr. Part No. LV426559
Each
MYR5,291.87
  • RS Stock No. 420-274
1 Kit
MYR874.17
Better World
  • RS Stock No. 248-3696
  • Mfr. Part No. A9R15440
Each
MYR1,909.11
  • RS Stock No. 537-5652
  • Mfr. Part No. 259754 NZM2/3-XA24AC/DC
Each
MYR568.74
  • RS Stock No. 647-8572
  • Mfr. Part No. MF-R300
Each (In a Pack of 10)
MYR2.00
  • RS Stock No. 167-8121
  • Mfr. Part No. 0034.3125
Each (In a Pack of 10)
MYR1.994
Better World
  • RS Stock No. 219-8319
  • Mfr. Part No. GVAU115
Each
MYR502.90
  • RS Stock No. 122-5279
  • Mfr. Part No. 60320063
Each (In a Pack of 10)
MYR19.549
Better World
  • RS Stock No. 219-8903
  • Mfr. Part No. KNB63SM412
Each
MYR2,940.85
  • RS Stock No. 110-281
  • Mfr. Part No. A9D55432
Each
MYR8,907.58
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