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

67 of 999+
Temporarily out of stock
ABB Tmax XT Terminal for use with Circuit Breaker
  • RS Stock No. 232-0221
  • Mfr. Part No. 1SDA066853R1 F XT2 3PCS
Each
PHP2,056.66(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 2P Poles, Type AC
  • RS Stock No. 231-9948
  • Mfr. Part No. 2CSR255170R1164 DSH201 C16 A30
1 Box of 1
PHP4,705.32(exc. VAT)
In Stock
Better World
Schneider Electric Compact Ins, Compact Inv, Compact Nsx, Easypact Cvs, Powerpact Multistandard Phase Barrier for use
  • RS Stock No. 221-1258
  • Mfr. Part No. LV432570
Each
PHP3,020.36(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 125A, Breaking Capacity 25 kA, Screw Mount
  • RS Stock No. 207-249
  • Mfr. Part No. BDL36125LU
Each
PHP64,614.72(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS Stock No. 260-8119
  • Mfr. Part No. C40L3
Each
PHP166,377.28(exc. VAT)
In Stock
RS PRO Residential RCCBs, 25A, 2 Pole, 30mA, Type A, 230V
  • RS Stock No. 284-2367
Each
PHP2,347.95(exc. VAT)
In Stock
Littelfuse Fuse Holder Water Proof Holder
  • RS Stock No. 738-2784P
  • Mfr. Part No. FHAC0001ZXJ
Each (Supplied in a Box)
PHP296.21(exc. VAT)
In Stock
Better World
Schneider Electric, ComPacT NSX MCCB 3P 16A, Fixed Mount
  • RS Stock No. 254-6285
  • Mfr. Part No. C10F3TM016
Each
PHP39,125.75(exc. VAT)
In Stock
RS PRO PC Board Non Resettable Fuse, Radial 3.15A, 250V ac
  • RS Stock No. 767-5052
Each (In a Pack of 10)
PHP17.699(exc. VAT)
In Stock
Better World
Siemens RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type A, SENTRON Range
  • RS Stock No. 187-3283
  • Mfr. Part No. 5SV1316-6KK16
Each
PHP4,914.22(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4H MCCB 3P 32A, Fixed Mount
  • RS Stock No. 236-6749
  • Mfr. Part No. 1SDA068444R1 XT4H 160 MA 32 FF
Each
PHP44,320.11(exc. VAT)
Temporarily out of stock
ABB S403M MCB, 3P, 10A Curve C, 440V AC, 12V DC, 25 kA Breaking Capacity
  • RS Stock No. 140-547
  • Mfr. Part No. 2CCS573001R0104
Each
PHP10,320.82(exc. VAT)
New product - Preorder today
Schneider Electric RCBO, 32A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 654-836
  • Mfr. Part No. A9D19232
Each
PHP28,367.19(exc. VAT)
In Stock
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS Stock No. 260-8090
  • Mfr. Part No. C40F32D400
Each
PHP246,529.32(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT New Generation MCCB 3P 150A, Fixed Mount
  • RS Stock No. 260-7774
  • Mfr. Part No. C16H32M150
Each
PHP97,422.98(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 3m, 160A, KNA Series
  • RS Stock No. 219-8893
  • Mfr. Part No. KNA160ED4306
Each
PHP43,270.53(exc. VAT)
In Stock
WJ Furse Copper Earth Bar L. 550mm x W. 90mm x H. 96mm 6 Ways
  • RS Stock No. 124-2504
  • Mfr. Part No. 7TCA083670R0632 LK207-6
Each
PHP17,827.92(exc. VAT)
In Stock
Eaton 50A Centred Tag Fuse, NH000, 690V ac
  • RS Stock No. 182-1434
  • Mfr. Part No. 170M1564D
Each (In a Box of 10)
PHP4,693.899(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-9484
  • Mfr. Part No. C10L3
Each
PHP65,650.04(exc. VAT)
In Stock
Schneider Electric Acti9 Acti9 iC60 MCB, 3P, 3A Curve D, 400V AC, 180V DC, 50 kA Breaking Capacity
  • RS Stock No. 287-5953
  • Mfr. Part No. A9F75303
Each
PHP19,282.62(exc. VAT)
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