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

180 of 999+
Siemens Sentron Copper Rod for use with Busbar
  • RS Stock No. 228-8263
  • Mfr. Part No. 8WC5123
Each
PHP5,081.60(exc. VAT)
Schneider Electric EasyPact Electronic Circuit Breaker 40A, Fixed
  • RS Stock No. 122-415
  • Mfr. Part No. LV510856
Each
PHP4,639.23(exc. VAT)
Siemens SENTRON Connection Unit for use with 3VA15/25 1000
  • RS Stock No. 269-7225
  • Mfr. Part No. 3VA9603-0QB00
Each (In a Pack of 3)
PHP3,841.08(exc. VAT)
Better World
Siemens RCBO, 6A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8806
  • Mfr. Part No. 5SV1316-3KK06
Each
PHP18,362.42(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 630A, Breaking Capacity 9 kA, Withdrawable
  • RS Stock No. 231-410
  • Mfr. Part No. 113575 NZMH3-VE630-T-AVE
Each
PHP351,305.83(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 630A, Breaking Capacity 9 kA, Withdrawable
  • RS Stock No. 232-056
  • Mfr. Part No. 110881 NZMH3-4-VE630-AVE
Each
PHP393,239.67(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 32A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 230-388
  • Mfr. Part No. 113356 NZMH2-M32-SVE
Each
PHP46,332.49(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 16A, Breaking Capacity 70 kA
  • RS Stock No. 209-7027
  • Mfr. Part No. 3VA1196-6EE32-0AA0
Each
PHP19,733.50(exc. VAT)
Siemens ALPHA Flange for use with ALPHA DIN Installation Distributor
  • RS Stock No. 272-0353
  • Mfr. Part No. 8GK9100-0KK06
Each
PHP5,765.71(exc. VAT)
Eaton 500A Centred Tag Fuse, NH2, 440V ac
  • RS Stock No. 182-1759
  • Mfr. Part No. 500NHG2B
Each
PHP1,981.22(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 800A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-145
  • Mfr. Part No. C080N420FM
Each
PHP286,603.51(exc. VAT)
Schneider Electric, Compact MCCB 4P 630A, Breaking Capacity 100 kA
  • RS Stock No. 354-472
  • Mfr. Part No. C063L4WM
Each
PHP287,012.17(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 630A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-143
  • Mfr. Part No. C063N450FM
Each
PHP315,736.23(exc. VAT)
Eaton RCD, 25A, 2 Pole, 30mA, Type C, 230V
  • RS Stock No. 922-8743
  • Mfr. Part No. 236279 PKNM-25/1N/C/003-A-MW
Each
PHP9,697.86(exc. VAT)
Siemens SENTRON 5SY Circuit Breaker, 4P, 10A Curve B, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 664-348
  • Mfr. Part No. 5SY6410-6
Each
PHP9,024.97(exc. VAT)
Siemens SENTRON 5SY5 MCB, 4P, 6A Curve C, 400V AC, 880V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-371
  • Mfr. Part No. 5SY5406-7
Each
PHP29,422.85(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 250A, Breaking Capacity 4 kA, Plug In
  • RS Stock No. 229-858
  • Mfr. Part No. 113239 NZMC2-4-A250-SVE
Each
PHP139,877.20(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 63A, Fixed Mount
  • RS Stock No. 236-7517
  • Mfr. Part No. 1SDA067835R1 XT2S 160 Ekip LS/I 63A FF
Each
PHP56,823.67(exc. VAT)
Better World
ABB, XT2H MCCB 4P 10A, Fixed Mount
  • RS Stock No. 236-7544
  • Mfr. Part No. 1SDA067890R1 XT2H 160 Ekip LS/I 10A FF
Each
PHP63,135.63(exc. VAT)
Better World
ABB, XT2V MCCB 3P 25A, Fixed Mount
  • RS Stock No. 236-6525
  • Mfr. Part No. 1SDA067987R1 XT2V 160 Ekip LSIG 25A FF
Each
PHP143,756.38(exc. VAT)
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