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
Fuses - PCB
Fuses - PCB

33476 Products showing for Fuses & Circuit Breakers

43 of 999+
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 2P, 4A Curve C, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-348
  • Mfr. Part No. 2CDS272061R0044
Each
PHP15,982.82(exc. VAT)
Temporarily out of stock
Eaton 32A Tag Fuse, 22 x 86mm, 0.46/0.69kV, 73mm
  • RS Stock No. 261-417
  • Mfr. Part No. TIA32
1 Pack of 20
PHP15,845.13(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 80A, Fixed Mount
  • RS Stock No. 254-6307
  • Mfr. Part No. C11B3TM080L
Each
PHP28,926.41(exc. VAT)
Temporarily out of stock
Phoenix Contact 1 Phase Surge Arrester, DIN Rail Mount
  • RS Stock No. 129-562
  • Mfr. Part No. 2800102
Each
PHP11,997.86(exc. VAT)
Temporarily out of stock
Better World
ABB, Tmax XT MCCB 3P 125A, Fixed Mount
  • RS Stock No. 236-6577
  • Mfr. Part No. 1SDA068056R1 XT3N 250 TMD 125A FF
Each
PHP32,762.59(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 2P, 15A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-068
  • Mfr. Part No. 2CDS272061R0458
Each
PHP22,156.57(exc. VAT)
Temporarily out of stock
ABB RCBO, 6A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 181-4375
  • Mfr. Part No. 2CSA275103R1065 DS-ARC1 M B6 A30
Each
PHP23,786.23(exc. VAT)
Temporarily out of stock
Eaton 80A Bolted Tag Fuse, B1, 660 V ac, 350V dc
  • RS Stock No. 182-1659
  • Mfr. Part No. TC80
Each
PHP4,236.37(exc. VAT)
In Stock
ABB System Pro M Compact S200 MCB, 1P, 3A, Type Z, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-257
  • Mfr. Part No. 2CDS251001R0318
Each
PHP6,590.78(exc. VAT)
In Stock
Schneider Electric RCBO, 20A Current Rating, 3P Poles, 30mA Trip Sensitivity, Type C, Resi9 Range
  • RS Stock No. 130-504
  • Mfr. Part No. R9PDCS20
Each
PHP23,492.49(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY4 MCB, 3P, 15A Curve C, 400V AC, 60V DC, 20 kA Breaking Capacity
  • RS Stock No. 610-303
  • Mfr. Part No. 5SY4318-7
Each
PHP9,758.70(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 32A Current Rating, 3P+N Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 239-9968
  • Mfr. Part No. A9DX3732
Each
PHP54,140.82(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 16A Current Rating, 1P+N Poles, Type AB, Easy9 Range
  • RS Stock No. 850-8653
  • Mfr. Part No. EZ9D16816
Each
PHP2,117.04(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 231-126
  • Mfr. Part No. 112752 NZMC1-S100-SVE
Each
PHP43,619.99(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 400A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-1738
  • Mfr. Part No. 3VA2340-6HL42-0AA0
Each
PHP152,207.19(exc. VAT)
In Stock
Eaton, xEnergy MCCB 1P 250A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 537-5551
  • Mfr. Part No. 259094 NZMN2-A250
Each
PHP76,764.26(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4206
  • Mfr. Part No. 3VA1116-3EF36-0AA0
Each
PHP51,537.79(exc. VAT)
In Stock
Schneider Electric Vigi IC60 RCCB, 40A, 3 Pole, 30mA, Type A-SI, 400V ac
  • RS Stock No. 276-1540
  • Mfr. Part No. A9Q31340
Each
PHP31,759.54(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 50A, Fixed Mount
  • RS Stock No. 254-6279
  • Mfr. Part No. C10B3TM050
Each
PHP38,029.38(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 125A, Fixed Mount
  • RS Stock No. 260-7676
  • Mfr. Part No. C12B4TM125B
Each
PHP47,105.52(exc. VAT)
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