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

264 of 999+
Currently unavailable
Wickmann Non Resettable Fuse 2A, 300V ac
  • RS Stock No. 174-0932
  • Mfr. Part No. 36912000000
Each (In a Pack of 20)
PHP29.792(exc. VAT)
In Stock
Littelfuse 50A Grey, White Fuse Strips Car Fuse, 80V dc
  • RS Stock No. 226-0844
  • Mfr. Part No. 157.5701.5501
Each
PHP529.49(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 250A, Fixed Mount
  • RS Stock No. 260-8014
  • Mfr. Part No. C25V3TM250
Each
PHP182,348.21(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 50A, Breaking Capacity 25 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-437
  • Mfr. Part No. 3VA5150-6EC31-1AA0
Each
PHP33,678.41(exc. VAT)
In Stock
Eaton 10A D01 Neozed Fuse, gG, 400V ac
  • RS Stock No. 181-8819
  • Mfr. Part No. 10NZ01
Each
PHP185.20(exc. VAT)
Temporarily out of stock
Eaton MCB, 2P, 4A Curve D, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 241-168
  • Mfr. Part No. 101302 PLI-D4/2
Each
PHP7,287.10(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 4P 630A, Fixed Mount
  • RS Stock No. 250-4134
  • Mfr. Part No. 1SDA054401R1
Each
PHP228,236.44(exc. VAT)
Temporarily out of stock
Eaton Eaton Moeller 3 Phase Busbar, 600V, 17.6mm Pitch
  • RS Stock No. 123-038
  • Mfr. Part No. 171133 Z-BB/UL25/3P1MU/57
Each
PHP2,746.89(exc. VAT)
Temporarily out of stock
ABB Tmax XT Cover for use with Tmax XT
  • RS Stock No. 237-6133
  • Mfr. Part No. 1SDA066669R1 HTC XT3 2PCS
Each
PHP2,328.43(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 55 kA
  • RS Stock No. 209-6910
  • Mfr. Part No. 3VA2116-5HL42-0AA0
Each
PHP74,813.29(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT NSX MCCB 3P 50A, Breaking Capacity 25 kA, Panel Mount
  • RS Stock No. 654-701
  • Mfr. Part No. IL0503P25
Each
PHP25,557.35(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 6A Curve C, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-917
  • Mfr. Part No. A9K02306
Each
PHP1,572.58(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 800A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5258
  • Mfr. Part No. 3VA2580-5HN42-0AA0
Each
PHP264,164.08(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 60A, Breaking Capacity 65 kA, Fixed Mount
  • RS Stock No. 269-716
  • Mfr. Part No. 3VA5260-6ED31-2AA0
Each
PHP74,044.01(exc. VAT)
Limited stock
nVent ERICO Neutral Double Busbar Busbar
  • RS Stock No. 646-815
  • Mfr. Part No. 568721
Each
PHP710.99(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 10A Curve C, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 202-876
  • Mfr. Part No. 2CDS271061R0104
Each
PHP7,415.89(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 8A, 125V
  • RS Stock No. 252-2213
Each (In a Pack of 50)
PHP16.735(exc. VAT)
Temporarily out of stock
RS PRO 20A Blade Fuse Block, 250V
  • RS Stock No. 188-4477
1 Box of 1000
PHP50,840.36(exc. VAT)
In Stock
Eaton 160A British Standard Fuse, A4, 415V ac, 94mm
  • RS Stock No. 139-962
  • Mfr. Part No. DEO160
Each
PHP2,199.07(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 2m, 40A, Canalis Series
  • RS Stock No. 211-0364
  • Mfr. Part No. KBA40ED4203TW
Each (In a Pack of 6)
PHP14,453.642(exc. VAT)
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