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

218 of 999+
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 100A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 345-257
  • Mfr. Part No. BDF36100
Each
PHP56,256.59(exc. VAT)
In Stock
Schneider Electric RCBO, 25A Current Rating, 1P+N Poles, 100mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-731
  • Mfr. Part No. A9D06825
Each
PHP14,333.66(exc. VAT)
Temporarily out of stock
ABB PBFC 3, 3+N Phase Busbar
  • RS Stock No. 201-490
  • Mfr. Part No. 1STQ007414A0000
Each
PHP173,142.03(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 125A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-274
  • Mfr. Part No. 3VA5112-6ED21-1AA0
Each
PHP57,530.50(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 654-143
  • Mfr. Part No. C12F6TM160L
Each
PHP86,819.66(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT NSX Circuit breaker 2P 63A, Breaking Capacity 100 KA, Fixed Mount
  • RS Stock No. 119-471
  • Mfr. Part No. C10S2TM063
Each
PHP31,389.44(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 3 Phase Distribution Board, 22 Way, 250 A
  • RS Stock No. 339-634
  • Mfr. Part No. SEA9BPN25016S6
Each
PHP727,820.32(exc. VAT)
In Stock
Finder Busbar, 6 A - 250V
  • RS Stock No. 776-1538
  • Mfr. Part No. 093.16.0
Each
PHP219.07(exc. VAT)
Temporarily out of stock
Eaton Phase Busbar 1 Phase Busbar, 277V
  • RS Stock No. 230-707
  • Mfr. Part No. 121981 BB-UL-18/1P-1M/57
Each
PHP2,107.39(exc. VAT)
Temporarily out of stock
xEnergy Basic Distribution Board Enclosure
  • RS Stock No. 252-468
  • Mfr. Part No. 193189 BPM-O-1100/11-P-EP-W
Each
PHP78,296.04(exc. VAT)
In Stock
Bulgin PVC Fuse Cover
  • RS Stock No. 408-426
  • Mfr. Part No. 11327
Each (In a Pack of 5)
PHP104.644(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY Circuit Breaker, 4P, 10A Curve B, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 664-348
  • Mfr. Part No. 5SY6410-6
Each
PHP9,024.97(exc. VAT)
Temporarily out of stock
Better World
ABB, XT3S MCCB 4P 200A, Fixed Mount
  • RS Stock No. 236-6647
  • Mfr. Part No. 1SDA068227R1 XT3S 250 TMD 200A 3P+N FF
Each
PHP57,599.82(exc. VAT)
Temporarily out of stock
ABB RCBO, 32A Current Rating, 2P Poles, Type C
  • RS Stock No. 237-3387
  • Mfr. Part No. 2CSR252001R1324
Each
PHP17,818.70(exc. VAT)
Temporarily out of stock
Schneider Electric Horizontal Distribution Length, 3m, 63A, Canalis Series
  • RS Stock No. 207-228
  • Mfr. Part No. KNA63ED4301
Each
PHP19,995.51(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 25A, Fixed Mount
  • RS Stock No. 260-9412
  • Mfr. Part No. C10B4TM025
Each
PHP44,810.69(exc. VAT)
In Stock
Schneider Electric MasterPact Door for use with MasterPact MTZ1 Circuit Breaker
  • RS Stock No. 288-1515
  • Mfr. Part No. LV833857SP
Each
PHP9,461.24(exc. VAT)
In Stock
Rittal Earthing Strap, 16mm² Wire Range
  • RS Stock No. 263-3736
  • Mfr. Part No. 2568000
Each (In a Pack of 5)
PHP693.084(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 32A, Fixed Mount
  • RS Stock No. 260-9431
  • Mfr. Part No. C10F3TM032
Each
PHP44,802.57(exc. VAT)
Temporarily out of stock
Siemens 10A D01 Neozed Fuse, gR, 400V
  • RS Stock No. 202-7052
  • Mfr. Part No. 5SE1310
Each (In a Pack of 10)
PHP1,035.891(exc. VAT)
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