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

33477 Products showing for Fuses & Circuit Breakers

66 of 999+
Better World
Schneider Electric Surge Protector, 50kA, DIN Rail Mount
  • RS Stock No. 219-8277
  • Mfr. Part No. A9L40500
Each
PHP28,213.16(exc. VAT)
Schneider Electric, ComPacT MCCB 2P 80A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 341-507
  • Mfr. Part No. C10F2TM080
Each
PHP51,161.48(exc. VAT)
Eaton 250A Tag Fuse, 56 x 224mm, 1.5kV
  • RS Stock No. 262-572
  • Mfr. Part No. SD2-D-PV
1 Pack of 3
PHP9,180.09(exc. VAT)
Better World
ABB, Protecta MCCB 3P 250A, Breaking Capacity 36 kA, DIN Rail Mount
  • RS Stock No. 831-9181
  • Mfr. Part No. 1SDA068208R1 XT1D 160 3p F F
Each
PHP25,839.72(exc. VAT)
RS PRO 15A Blue Blade Car Fuse, 32V dc
  • RS Stock No. 563-570
Each (In a Pack of 10)
PHP44.476(exc. VAT)
Schneider Electric RCBO, 10A Current Rating, 2P Poles, 300mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 130-871
  • Mfr. Part No. A9D50210
Each
PHP44,141.43(exc. VAT)
Eaton 630A Centred Tag Fuse, NH3, 500V ac
  • RS Stock No. 703-8768P
  • Mfr. Part No. 630NHG3B
Each (Supplied in a Box)
PHP2,490.41(exc. VAT)
Siemens SENTRON Auxiliary Contact for use with 3VA4/5/6
  • RS Stock No. 272-0234
  • Mfr. Part No. 3VA9978-0AA11
Each
PHP3,922.36(exc. VAT)
ABB F200 RCCB, 80A, 2 Pole, 100mA, Type A, 230V ac
  • RS Stock No. 225-6106
  • Mfr. Part No. 2CSF202101R2800 F202 A-80/0.1
Each
PHP19,757.81(exc. VAT)
Better World
Schneider Electric NSX Spreader for use with Compact Nsx100/160/250, Easypact Cvs 100/160/250
  • RS Stock No. 221-1223
  • Mfr. Part No. LV431563
Each
PHP4,219.98(exc. VAT)
Schneider Electric 20 Way Metal Consumer Unit, 100A, IP3x (with cover), IPxx D (on top) EZ9E20
  • RS Stock No. 214-777
  • Mfr. Part No. EZ9E20MCU
Each
PHP10,776.91(exc. VAT)
Schneider Electric Acti9 iID RCCB, 80A, 2 Pole, 100mA, Type AC, 220 → 240V ac
  • RS Stock No. 130-500
  • Mfr. Part No. A9R12280
Each
PHP19,989.00(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 50A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-662
  • Mfr. Part No. 3VA5150-1MH31-0AA0
Each
PHP34,278.32(exc. VAT)
Siemens SENTRON Wire Connector for use with 3VA1
  • RS Stock No. 269-7063
  • Mfr. Part No. 3VA9113-0JC12
Each (In a Pack of 3)
PHP1,980.417(exc. VAT)
Europa 3 Phase Distribution Board, 12 Way, 125 A
  • RS Stock No. 849-6406
  • Mfr. Part No. TPN04
Each
PHP19,598.44(exc. VAT)
Bourns 200A Tag Fuse, 66mm, 800V ac/dc, 24.1mm
  • RS Stock No. 254-4151
  • Mfr. Part No. PF-FB2-300
Each
PHP11,549.59(exc. VAT)
ABB S302 MCB, 2P, 3A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 204-239
  • Mfr. Part No. 2CDS382001R0034
Each
PHP19,461.45(exc. VAT)
RS PRO 16A British Standard Fuse, F1, 550V ac
  • RS Stock No. 521-2927
Each (In a Pack of 5)
PHP298.182(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 250A, Breaking Capacity 50kA, Fixed Mount
  • RS Stock No. 260-9773
  • Mfr. Part No. LV525453
Each
PHP81,900.89(exc. VAT)
Better World
Schneider Electric Acti9 iIDK RCCB, 40A, 2 Pole, 30mA, Type AC, 220 → 240V ac
  • RS Stock No. 238-3455
  • Mfr. Part No. A9R55240
Each
PHP8,880.72(exc. VAT)
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