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

33476 Products showing for Fuses & Circuit Breakers

30 of 999+
Temporarily out of stock
Eaton xEffect FAZ MCB, 2P, 25A Curve B, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 247-649
  • Mfr. Part No. 132707 FAZ-B25/2-NA
Each
PHP8,577.38(exc. VAT)
In Stock
ETI 4A DII Diazed Fuse, E27 Thread Size, gG - gL, 500V ac
  • RS Stock No. 413-636
  • Mfr. Part No. 2312402
Each (In a Pack of 5)
PHP96.51(exc. VAT)
In Stock
Mersen Surge Protector, 40kA, Plug In Mount
  • RS Stock No. 179-3076
  • Mfr. Part No. 83020006 / SP2-40K1000V-PV
Each
PHP3,403.01(exc. VAT)
Temporarily out of stock
ABB S302 MCB, 2P, 10A Curve C, 415V AC, 125V DC, 25 kA Breaking Capacity
  • RS Stock No. 200-745
  • Mfr. Part No. 2CDS382001R0104
Each
PHP15,164.77(exc. VAT)
In Stock
RS PRO PC Board Non Resettable Fuse 6.3A, 250V ac
  • RS Stock No. 911-3568
Each (In a Pack of 10)
PHP6.674(exc. VAT)
In Stock
SIBA 100A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1831
  • Mfr. Part No. 9005805.100
Each
PHP513.25(exc. VAT)
Limited stock
Limitor Thermal Fuse +131°C 2 A, 250V ac
  • RS Stock No. 176-9384
  • Mfr. Part No. SM125 A0
Each (In a Pack of 5)
PHP50.678(exc. VAT)
Limited stock
SIBA 11A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 736-1431
  • Mfr. Part No. 50-199-06/11A
Each
PHP945.44(exc. VAT)
Temporarily out of stock
Mersen 32A FF Cartridge Fuse, 22 x 58mm
  • RS Stock No. 136-0632
  • Mfr. Part No. A1018555 / FR22GR69V32
Each
PHP1,131.86(exc. VAT)
In Stock
Eaton 35A D01 Neozed Fuse, gG, 400V ac
  • RS Stock No. 181-8921
  • Mfr. Part No. 35NZ02
Each
PHP270.48(exc. VAT)
In Stock
SIBA 160A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1833
  • Mfr. Part No. 9005805.160
Each
PHP373.65(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Radial 500mA, 125V ac/dc
  • RS Stock No. 878-3251
  • Mfr. Part No. 0273.500H
Each
PHP405.50(exc. VAT)
In Stock
Eaton 30A Bolt In Mount 6.3 x 32mm Fuse Block, 300V ac/dc
  • RS Stock No. 852-7231
  • Mfr. Part No. S-8301-1-R
Each
PHP538.67(exc. VAT)
Temporarily out of stock
Eaton xEffect MCB, 3P, 125A Curve B, 400V AC, 15 kA Breaking Capacity
  • RS Stock No. 243-233
  • Mfr. Part No. 174514 AZ-3-B125
Each
PHP32,110.17(exc. VAT)
In Stock
RS PRO 7.5A Brown Blade Car Fuse, 32V dc
  • RS Stock No. 563-576
Each (In a Pack of 10)
PHP32.295(exc. VAT)
In Stock
Hager NEN MCB, 2P, 10A Curve B, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4962
  • Mfr. Part No. NEN210
Each
PHP9,029.74(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 630A, Breaking Capacity 50kA
  • RS Stock No. 260-9805
  • Mfr. Part No. LV563510
Each
PHP150,585.61(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 16A Curve B, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-900
  • Mfr. Part No. A9K01316
Each
PHP1,306.19(exc. VAT)
In Stock
SIBA 225A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1835
  • Mfr. Part No. 9005805.225
Each
PHP399.35(exc. VAT)
Temporarily out of stock
Schneider Electric Multi9 M9F1 MCB, 3P, 25A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-007
  • Mfr. Part No. M9F11325
Each
PHP11,879.07(exc. VAT)
Results per page
1
30
1674

Related links