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

20 of 999+
Better World
Siemens SENTRON Cover for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9402
  • Mfr. Part No. 3VA9481-0WF30
Each
PHP5,081.44(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 4A Curve D, 400V AC, 12 → 144V DC, 6 kA Breaking Capacity
  • RS Stock No. 734-9658
  • Mfr. Part No. A9F75204
Each
PHP13,495.92(exc. VAT)
Better World
Schneider Electric, ComPacT NSX MCCB 3P 200A, Fixed Mount
  • RS Stock No. 254-6355
  • Mfr. Part No. C25F3TM200
Each
PHP126,326.16(exc. VAT)
nVent ERICO Surge Protector, 35kA, 1500V ac, DIN Rail Mount
  • RS Stock No. 277-6232
  • Mfr. Part No. DT2C32011R
Each
PHP11,973.54(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 1P, 32A Curve C, 230V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-874
  • Mfr. Part No. A9K02132
Each
PHP287.88(exc. VAT)
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 4P 250A, Fixed Mount
  • RS Stock No. 221-1066
  • Mfr. Part No. LV433856
Each
PHP334,581.40(exc. VAT)
ABB S800U MCB, 2P, 70A Curve K, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-490
  • Mfr. Part No. 2CCS862017R0707
Each
PHP19,124.81(exc. VAT)
Phoenix Contact 1 Phase Surge Arrester, DIN Rail Mount
  • RS Stock No. 129-560
  • Mfr. Part No. 2800103
Each
PHP10,577.05(exc. VAT)
ABB FH200 RCCB, 63A, 4 Pole, 30mA, Type AC, 230/400V ac
  • RS Stock No. 540-1666
  • Mfr. Part No. 2CSF204006R1630 FH204 AC-63/0,03
Each
PHP9,973.92(exc. VAT)
Sato Parts 10A Panel Mount Fuse Holder for 6.4 x 30mm Fuse, 250V ac
  • RS Stock No. 627-2093
  • Mfr. Part No. F-4000-A
Each (In a Pack of 5)
PHP427.432(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 800A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 272-0182
  • Mfr. Part No. 3VA1580-5EF32-0AA0
Each
PHP191,017.96(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 1P, 16A Curve C, 230V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-872
  • Mfr. Part No. A9K02116
Each
PHP287.88(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 210-1731
  • Mfr. Part No. 3VA2220-5MN32-0AA0
Each
PHP79,620.01(exc. VAT)
RS PRO 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-431
Each (In a Pack of 10)
PHP24.907(exc. VAT)
nVent ERICO Neutral Double Busbar Busbar
  • RS Stock No. 646-813
  • Mfr. Part No. 568720
Each
PHP597.26(exc. VAT)
Hager NEN MCB, 2P, 63A Curve B, 240 → 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 144-4969
  • Mfr. Part No. NEN263
Each
PHP16,836.48(exc. VAT)
Better World
Schneider Electric Acti 9 Rotary Handle for use with iC60 MCB, iDPN Vigi, ilD MCB, iSW-NA
  • RS Stock No. 791-3023
  • Mfr. Part No. A9A27005
Each
PHP6,032.44(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 600A, Breaking Capacity 36kA, Fixed Mount
  • RS Stock No. 260-9795
  • Mfr. Part No. LV563306
Each
PHP109,676.69(exc. VAT)
RS PRO 15A Blue Blade Car Fuse, 32V dc
  • RS Stock No. 563-750
Each (In a Pack of 10)
PHP37.505(exc. VAT)
Better World
Schneider Electric Acti 9 RCD
  • RS Stock No. 219-9027
  • Mfr. Part No. A9N26948
Each
PHP8,804.40(exc. VAT)
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