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

85 of 999+
Eaton Eaton xEffect SASY 60i Busbar
  • RS Stock No. 243-784
  • Mfr. Part No. 107069 BBS-2/FL
Each (In a Pack of 2)
PHP919.34(exc. VAT)
Littelfuse 0.1A Resettable Fuse, 60V dc
  • RS Stock No. 867-5251P
  • Mfr. Part No. MINISMDC010F-2
Each (Supplied on a Reel)
PHP21.968(exc. VAT)
Schneider Electric Pragma Distribution Board, 18 Way, 90 A
  • RS Stock No. 653-8292
  • Mfr. Part No. PRA13751
Each
PHP7,572.73(exc. VAT)
Schneider Electric, ComPacT New Generation MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7759
  • Mfr. Part No. C16F3TM100
Each
PHP60,773.27(exc. VAT)
ABB FH200 RCCB, 40A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 186-3459
  • Mfr. Part No. 2CSF202102R1400
Each
PHP4,753.32(exc. VAT)
Omron Busbar
  • RS Stock No. 329-7320
  • Mfr. Part No. G78-16-P2RF-E
Each
PHP699.38(exc. VAT)
Hager CDF RCCB, 63A, 2 Pole, 30mA, Type F, 230V ac
  • RS Stock No. 597-877
  • Mfr. Part No. CDF769F
Each
PHP17,342.63(exc. VAT)
ABB S804S MCB, 4P, 32A, UC-B, 1000V DC, 50 kA Breaking Capacity
  • RS Stock No. 140-781
  • Mfr. Part No. 2CCS864001R1325
Each
PHP34,445.10(exc. VAT)
Phoenix Contact 3 Phase Surge Protector, 50kA, 250V ac, DIN Rail Mount
  • RS Stock No. 712-5276
  • Mfr. Part No. 2800188
Each
PHP33,295.17(exc. VAT)
Better World
Schneider Electric Copper
  • RS Stock No. 219-8668
  • Mfr. Part No. NSYRBL216146M
Each (In a Pack of 10)
PHP837.395(exc. VAT)
Selco Thermal Fuse +98°C 10 A, 250V ac
  • RS Stock No. 111-7803
  • Mfr. Part No. SWTC-208-3535
Each (In a Pack of 10)
PHP134.671(exc. VAT)
Schneider Electric ComPacT NSX Conversion Kit for use with NSX250
  • RS Stock No. 272-7475
  • Mfr. Part No. LV429341T
Each
PHP5,165.38(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 250A, Breaking Capacity 3 kA
  • RS Stock No. 245-207
  • Mfr. Part No. 3VA6225-5KL31-0AA0
Each
PHP207,493.44(exc. VAT)
Hager Push Button Circuit Trip for use with Modular Devices
  • RS Stock No. 144-4657
  • Mfr. Part No. SVN391
Each
PHP4,454.68(exc. VAT)
ABB System Pro M Compact S300P MCB, 3+N, 40A Curve D, 415V AC, 25 kA Breaking Capacity
  • RS Stock No. 203-095
  • Mfr. Part No. 2CDS383103R0401
Each
PHP50,043.73(exc. VAT)
Littelfuse 80A Natural BF1 Car Fuse, 32V dc
  • RS Stock No. 431-6731
  • Mfr. Part No. 153.5631.5801
Each (In a Pack of 5)
PHP286.088(exc. VAT)
ABB S800S MCB, 2P, 40A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-395
  • Mfr. Part No. 2CCS862001R0405
Each
PHP15,547.22(exc. VAT)
Schneider Electric Resi9 R9P MCB, 1P, 25A, 230V AC
  • RS Stock No. 357-838
  • Mfr. Part No. R9PTC625
Each
PHP21,516.75(exc. VAT)
ABB S202L MCB, 2P, 25A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-698
  • Mfr. Part No. 2CDS242701R0254
Each
PHP3,604.58(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 250A, Fixed Mount
  • RS Stock No. 260-8098
  • Mfr. Part No. C40F42D250
Each
PHP322,955.92(exc. VAT)
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