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

33493 Products showing for Fuses & Circuit Breakers

6 of 999+
Littelfuse PC Board Non Resettable Fuse, Radial 50mA, 125V ac/dc
  • RS Stock No. 878-3233
  • Mfr. Part No. 0273.050H
Each
PHP453.59(exc. VAT)
Siemens 5TG Spacer
  • RS Stock No. 203-2226
  • Mfr. Part No. 5TG8240
Each (In a Pack of 2)
PHP328.64(exc. VAT)
Schneider Electric Acti 9 iC60H MCB Mini Circuit Breaker, 2P, 16A Curve D, 440V AC, 133V DC, 10 kA, 42 kA Breaking
  • RS Stock No. 776-2544
  • Mfr. Part No. A9F08216
Each
PHP5,557.91(exc. VAT)
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 200A, Fixed Mount
  • RS Stock No. 232-0279
  • Mfr. Part No. 1SDA068220R1 XT3S 250 TMD 200A FF
Each
PHP40,140.83(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 4P 80A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 357-938
  • Mfr. Part No. BDL46080LU
Each
PHP82,100.14(exc. VAT)
Europa RCBO, 40A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, EUBLMC Range
  • RS Stock No. 210-4734
  • Mfr. Part No. EUBLMC40B30A
Each
PHP4,422.86(exc. VAT)
Schneider Electric Acti9 3 Phase Distribution Board, 24 Way, 250 A
  • RS Stock No. 244-975
  • Mfr. Part No. SE72B250
Each
PHP89,572.85(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 10A Curve C, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-913
  • Mfr. Part No. A9K02310
Each
PHP1,596.46(exc. VAT)
Better World
Schneider Electric, ComPact MCCB 3P 150A
  • RS Stock No. 221-0988
  • Mfr. Part No. LV430557
Each
PHP44,361.08(exc. VAT)
RS PRO Three Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-804
Each
PHP7,966.48(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 4P 40A, Breaking Capacity 25kA
  • RS Stock No. 260-9723
  • Mfr. Part No. LV510313
Each
PHP34,429.00(exc. VAT)
ABB S800C MCB, 3P, 125A Curve B, 440V AC, 500V DC, 20 kA Breaking Capacity
  • RS Stock No. 141-150
  • Mfr. Part No. 2CCS883001R0255
Each
PHP12,561.96(exc. VAT)
Littelfuse 15A Blue Blade Car Fuse, 32V dc
  • RS Stock No. 787-4120
  • Mfr. Part No. 0287015.PXCN
Each (In a Pack of 10)
PHP14.751(exc. VAT)
ABB S800C MCB, 3P, 20A Curve D, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-229
  • Mfr. Part No. 2CCS883001R0201
Each
PHP14,461.15(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 125A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9755
  • Mfr. Part No. LV516302
Each
PHP35,187.07(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 3P, 16A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-922
  • Mfr. Part No. A9K12316
Each
PHP2,066.70(exc. VAT)
Mersen 5A F GMG Cartridge Fuse, 10 x 38mm
  • RS Stock No. 914-4351
  • Mfr. Part No. ATM5
Each
PHP1,077.07(exc. VAT)
Eaton HTC Series Thermoplastic Fuse Cover for 5 x 20mm Fuse
  • RS Stock No. 765-2976
  • Mfr. Part No. HTC-140M
Each (In a Pack of 5)
PHP23.066(exc. VAT)
WJ Furse Earth Rod
  • RS Stock No. 153-2966
  • Mfr. Part No. 7TCA083120R0011 RB005
Each (In a Pack of 10)
PHP1,909.652(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 20A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3307
  • Mfr. Part No. A9F54120
Each
PHP1,621.75(exc. VAT)
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