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

33502 Products showing for Fuses & Circuit Breakers

205 of 999+
Better World
Schneider Electric Acti 9 iC60L MCB, 4P, 32A Curve C, 400V AC, 12 → 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 734-9324
  • Mfr. Part No. A9F94432
Each
PHP27,749.16(exc. VAT)
Eaton 32A Fuse Holder for 118 x 61 x 32mm Fuse, 1P, 690V
  • RS Stock No. 261-316
  • Mfr. Part No. CM32FW
1 Pack of 10
PHP19,786.80(exc. VAT)
Eaton Eaton Metering Board ZSD Meter Cabinet for use with Metering Board
  • RS Stock No. 243-005
  • Mfr. Part No. 191008 ZSD-ZV-1100/APZ/A
Each
PHP131,666.38(exc. VAT)
Siemens 40A Centred Tag Fuse, NH00, 690V
  • RS Stock No. 210-6945
  • Mfr. Part No. 3NA7817-6
Each (In a Pack of 3)
PHP3,262.51(exc. VAT)
Schneider Electric Acti9 Acti9 Reflex MCB, 2P, 40A Curve B, 230V AC, 48V DC, 10 kA Breaking Capacity
  • RS Stock No. 354-488
  • Mfr. Part No. A9C61240
Each
PHP25,952.06(exc. VAT)
Better World
Siemens, 0AA0 MCCB 3P 40A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-6011
  • Mfr. Part No. 3VA1140-5ED32-0AA0
Each
PHP23,853.99(exc. VAT)
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 1kA, Breaking Capacity 25 kA, Cable Mount
  • RS Stock No. 249-216
  • Mfr. Part No. 3VA6610-5HM36-0AA0
Each
PHP514,642.52(exc. VAT)
Better World
Schneider Electric Earthing Strap Tinned Copper 160 x 10mm Diameter
  • RS Stock No. 219-9706
  • Mfr. Part No. NSYEL166D6
Each (In a Pack of 10)
PHP262.944(exc. VAT)
Legrand 48V (Volts) Shunt Release Shunt trip for use with DX³
  • RS Stock No. 266-1295
  • Mfr. Part No. 406276
Each
PHP9,736.26(exc. VAT)
Mersen 125A NH Fuse, NH1, 500V ac
  • RS Stock No. 375-9654
  • Mfr. Part No. Q217732
Each
PHP1,336.38(exc. VAT)
Contactum RCBO, 32A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type C, CCPBR Range
  • RS Stock No. 240-6402
  • Mfr. Part No. CCPBR1032AC
Each
PHP3,013.40(exc. VAT)
Schurter Surface Mount Fuse 1A, 250V ac
  • RS Stock No. 270-7928
  • Mfr. Part No. 0034.5617.11
Each
PHP69.20(exc. VAT)
Schneider Electric Altivar Process Modular Busbar, 380 → 480V
  • RS Stock No. 578-307
  • Mfr. Part No. VW3A99ACFAA
Each
PHP17,716.40(exc. VAT)
Schurter SMD Non Resettable Fuse 250mA, 125V ac/dc
  • RS Stock No. 131-583
  • Mfr. Part No. 3404.0006.11
Each (In a Pack of 10)
PHP61.439(exc. VAT)
Better World
Siemens Sentron 5SY6 MCB, 1P, 4A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 521-4951
  • Mfr. Part No. 5SY6104-7
Each
PHP1,965.41(exc. VAT)
Phoenix Contact Thermal Circuit Breaker - Single Pole 32V dc Voltage Rating Base Mounting, 7.5A Current Rating
  • RS Stock No. 609-775
  • Mfr. Part No. 1499966
Each
PHP491.10(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 249-481
  • Mfr. Part No. 3VA6580-5HL42-0AA0
Each
PHP426,669.44(exc. VAT)
Eaton 10A British Standard Fuse, A2, 550V ac, 73mm
  • RS Stock No. 413-333
  • Mfr. Part No. AAO10
Each (In a Pack of 5)
PHP443.756(exc. VAT)
Schneider Electric Acti9 A9V6 MCB, 2P, 40A, Type A-SI, 230-240V AC
  • RS Stock No. 212-254
  • Mfr. Part No. A9V61240
Each
PHP27,235.56(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 2P 70A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 339-242
  • Mfr. Part No. BDL26070LU
Each
PHP25,486.51(exc. VAT)
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