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

33502 Products showing for Fuses & Circuit Breakers

268 of 999+
Limited stock
nVent ERICO Neutral Double Busbar Busbar
  • RS Stock No. 646-809
  • Mfr. Part No. 568716
Each
PHP317.71(exc. VAT)
Limited stock
Schneider Electric Acti 9 1 Phase Busbar, 230V ac, 9mm Pitch
  • RS Stock No. 191-9522
  • Mfr. Part No. A9XPN612
Each
PHP2,567.13(exc. VAT)
Temporarily out of stock
ABB Tmax XT Shunt Opening Release for use with Circuit Breaker
  • RS Stock No. 231-9364
  • Mfr. Part No. 1SDA104925R1 YO XT5-XT6 24...60 Vac/dc
Each
PHP7,822.25(exc. VAT)
Temporarily out of stock
Schneider Electric ComPacT NSX Mechanical Interlock for use with ComPacT NSX100, NSX160, NSX250
  • RS Stock No. 205-210
  • Mfr. Part No. LV429369ET
Each
PHP44,159.80(exc. VAT)
Temporarily out of stock
Siemens SENTRON Cover for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9385
  • Mfr. Part No. 3VA9401-0WG30
Each
PHP8,016.15(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4551
  • Mfr. Part No. 3VA2125-7HL32-0AA0
Each
PHP54,874.47(exc. VAT)
Temporarily out of stock
Schurter Surface Mount Fuse 1A, 250V ac
  • RS Stock No. 270-7953
  • Mfr. Part No. 3404.2416.11
Each
PHP98.38(exc. VAT)
In Stock
HENSEL ENYBOARD Distribution Board, 41 A
  • RS Stock No. 117-122
  • Mfr. Part No. RK 0610 T
Each
PHP2,709.01(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 630A 3VA2, 3 channels
  • RS Stock No. 160-035
  • Mfr. Part No. 3VA2463-5KQ32-0AA0
Each
PHP300,278.01(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0326
  • Mfr. Part No. 8GK1081-5KK20
Each
PHP74,287.77(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3848
  • Mfr. Part No. 3VA2063-6JQ32-0AA0
Each
PHP133,142.91(exc. VAT)
Temporarily out of stock
Lovato Single Phase Replacement cartridge, 30kA, DIN Rail Mount
  • RS Stock No. 248-5675
  • Mfr. Part No. SGX02DGK50M3
Each
PHP6,843.13(exc. VAT)
Temporarily out of stock
Eaton RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type B, FRBmM Range
  • RS Stock No. 123-343
  • Mfr. Part No. 170889 FRBMM-B20/2/003-LIA
Each
PHP11,071.57(exc. VAT)
Temporarily out of stock
Eaton 3A Resettable Fuse, 6V
  • RS Stock No. 225-8292
  • Mfr. Part No. PTSLR18126V300
Each (In a Pack of 10)
PHP67.90(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT NSX MCCB 3P 160A, Breaking Capacity 25 kA, Panel Mount
  • RS Stock No. 654-808
  • Mfr. Part No. IL0633P25
Each
PHP25,557.35(exc. VAT)
In Stock
Bourns 80A Tag Fuse, 38mm, 800V ac/dc, 24.1mm
  • RS Stock No. 254-4235
  • Mfr. Part No. PF-NT5-80
Each
PHP1,982.71(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 600A, Fixed Mount
  • RS Stock No. 260-8209
  • Mfr. Part No. C63F4TM600D
Each
PHP234,315.30(exc. VAT)
Temporarily out of stock
Eaton 6A Tag Fuse, 12 x 47mm, 240000V
  • RS Stock No. 228-981
  • Mfr. Part No. SSD6 6A 240V AC INDUSTRIAL FUSE
1 Pack of 20
PHP10,888.66(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2V MCCB 3P 63A, Fixed Mount
  • RS Stock No. 236-6522
  • Mfr. Part No. 1SDA067983R1 XT2V 160 Ekip LSI 63A FF
Each
PHP126,404.87(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY4 MCB, 3P, 63A, Type A, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-305
  • Mfr. Part No. 5SY4363-5
Each
PHP27,441.76(exc. VAT)
1
268
1676
Results per page

Related links