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

33476 Products showing for Fuses & Circuit Breakers

29 of 999+
SIBA SMD Non Resettable Fuse 100mA, 250V
  • RS Stock No. 736-2601
  • Mfr. Part No. 160000.0,1
Each (In a Bag of 10)
PHP101.689(exc. VAT)
Socomec 630A Neutral Link for Neutral Bar Fuses
  • RS Stock No. 252-5326
  • Mfr. Part No. 64210003
Each
PHP1,991.57(exc. VAT)
Mersen 32A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 304-1048
  • Mfr. Part No. A214107
Each (In a Pack of 10)
PHP120.925(exc. VAT)
Mersen Surge Protector
  • RS Stock No. 179-3071
  • Mfr. Part No. 83230511 / STMT23-20K275V-SP-SM
Each
PHP10,139.44(exc. VAT)
Limitor Thermal Fuse +102°C 5 A, 250V ac
  • RS Stock No. 124-5057
  • Mfr. Part No. A1-5AF
Each (In a Pack of 5)
PHP74.366(exc. VAT)
Mersen 32A FF Cartridge Fuse, 22 x 58mm
  • RS Stock No. 136-0632
  • Mfr. Part No. A1018555 / FR22GR69V32
Each
PHP1,131.86(exc. VAT)
Schurter 0.5A Resettable Surface Mount Fuse, 15V dc
  • RS Stock No. 270-7979
  • Mfr. Part No. PFMF.050.2
Each
PHP24.00(exc. VAT)
SIBA 160A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1833
  • Mfr. Part No. 9005805.160
Each
PHP373.65(exc. VAT)
ABB 160A Solid Link for NH Fuses
  • RS Stock No. 251-3301
  • Mfr. Part No. 1SCA022003R9680
Each
PHP2,610.05(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Radial 500mA, 125V ac/dc
  • RS Stock No. 878-3251
  • Mfr. Part No. 0273.500H
Each
PHP405.50(exc. VAT)
Eaton 30A Bolt In Mount 6.3 x 32mm Fuse Block, 300V ac/dc
  • RS Stock No. 852-7231
  • Mfr. Part No. S-8301-1-R
Each
PHP538.67(exc. VAT)
SIBA 80A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1830
  • Mfr. Part No. 9005805.80
Each
PHP373.65(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 4P 125A, Breaking Capacity 25kA
  • RS Stock No. 260-9757
  • Mfr. Part No. LV516312
Each
PHP58,429.32(exc. VAT)
Mersen Surge Protector
  • RS Stock No. 179-3069
  • Mfr. Part No. 83230136 / STPT23-20K275V-4P-LF
Each
PHP11,859.71(exc. VAT)
ABB System M Pro S200 MCB, 3P, 16A Curve B, 400V AC, 12V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-0884
  • Mfr. Part No. 2CDS253001R0165
Each
PHP5,587.50(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 630A, Breaking Capacity 50kA
  • RS Stock No. 260-9805
  • Mfr. Part No. LV563510
Each
PHP150,585.61(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 3P, 16A Curve B, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-900
  • Mfr. Part No. A9K01316
Each
PHP1,306.19(exc. VAT)
SIBA 225A White Automotive Car Fuse, 80V dc
  • RS Stock No. 161-1835
  • Mfr. Part No. 9005805.225
Each
PHP399.35(exc. VAT)
Schneider Electric Altivar Process Modular Busbar, 380 → 480V
  • RS Stock No. 578-335
  • Mfr. Part No. VW3A98CTM04
Each
PHP3,763.21(exc. VAT)
Schneider Electric Multi9 M9F1 MCB, 3P, 25A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-007
  • Mfr. Part No. M9F11325
Each
PHP11,879.07(exc. VAT)
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