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

256 of 999+
Temporarily out of stock
Contactum 10 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9164
  • Mfr. Part No. DD101SPMS-P01
Each
PHP18,002.70(exc. VAT)
In Stock
Better World
Schneider Electric, ComPact MCCB, Fixed Mount
  • RS Stock No. 221-0951
  • Mfr. Part No. LV429414
Each
PHP14,761.66(exc. VAT)
Temporarily out of stock
Contactum 20 Way Steel Consumer Unit, 100A Defender
  • RS Stock No. 184-9111
  • Mfr. Part No. DD201MS
Each
PHP8,968.51(exc. VAT)
Temporarily out of stock
Siemens ALPHA Adapter Kit for use with 400/630 DIN LV HRC
  • RS Stock No. 210-1766
  • Mfr. Part No. 8GK4654-3KK12
Each
PHP11,177.04(exc. VAT)
In Stock
Better World
Schneider Electric PowerPact Distribution Board, 18 Way, 800 A
  • RS Stock No. 247-2145
  • Mfr. Part No. MGPCM18R
Each
PHP146,799.63(exc. VAT)
Temporarily out of stock
ABB S800C MCB, 3P, 32A Curve K, 240V AC, 25 kA Breaking Capacity
  • RS Stock No. 141-066
  • Mfr. Part No. 2CCS883001R0537
Each
PHP11,020.66(exc. VAT)
Temporarily out of stock
Schneider Electric Altivar Process Modular Busbar, 690V
  • RS Stock No. 119-338
  • Mfr. Part No. VW3A98CF3169
Each
PHP38,261.84(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-4022
  • Mfr. Part No. 3VA2110-8HM32-0AA0
Each
PHP88,275.45(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 136-7786
  • Mfr. Part No. 2CSR275151R1164 DSE201 M C16 A30 - N Blue
Each
PHP8,534.49(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0336
  • Mfr. Part No. 8GK1082-5KK11
Each
PHP62,988.88(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 63A, Breaking Capacity 70 kA, Clip-On
  • RS Stock No. 178-7826
  • Mfr. Part No. LV426575
Each
PHP44,100.88(exc. VAT)
Temporarily out of stock
Siemens Auxiliary Release Shunt trip for use with 3VA1, 3VA20-26
  • RS Stock No. 275-969
  • Mfr. Part No. 3VA9988-0BM10
Each
PHP12,022.99(exc. VAT)
Temporarily out of stock
ABB S801N MCB, 1P, 8A Curve C, 400V AC, 36 kA Breaking Capacity
  • RS Stock No. 140-340
  • Mfr. Part No. 2CCS891001R0084
Each
PHP5,327.88(exc. VAT)
Temporarily out of stock
Socomec 25A Tag Fuse, 14 X 51mm, 690V, 51mm
  • RS Stock No. 252-5312
  • Mfr. Part No. 170N1425
Each (In a Pack of 10)
PHP566.276(exc. VAT)
Temporarily out of stock
Socomec 3 Phase Industrial Surge Protector, 40kA
  • RS Stock No. 224-2519
  • Mfr. Part No. 49821432
Each
PHP31,388.80(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200M MCB, 3P, 8A Curve D, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 203-887
  • Mfr. Part No. 2CDS273001R0081
Each
PHP29,711.99(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 600A, Fixed
  • RS Stock No. 122-323
  • Mfr. Part No. LV563329
Each
PHP46,395.18(exc. VAT)
In Stock
Better World
Siemens, SENTRON MCCB 3P 160A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5187
  • Mfr. Part No. 3VA2216-5MN32-0AA0
Each
PHP61,394.05(exc. VAT)
Temporarily out of stock
Eaton xEnergy Basic Distribution Board Enclosure
  • RS Stock No. 232-149
  • Mfr. Part No. 116666 BPM-O-800/12-P
Each
PHP89,365.99(exc. VAT)
Temporarily out of stock
Legrand RCBO, 10A Current Rating, 2P Poles, 10mA Trip Sensitivity, Type A, Mosaic Range
  • RS Stock No. 266-1190
  • Mfr. Part No. 0 775 33
Each
PHP18,167.50(exc. VAT)
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