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

168 of 999+
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 New Generation Trip Unit for use with ComPacT NSX160
  • RS Stock No. 260-7717
  • Mfr. Part No. C163TM160
Each
PHP25,750.47(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 50 kA, Fixed Mount
  • RS Stock No. 655-143
  • Mfr. Part No. C063N450FM
Each
PHP315,736.23(exc. VAT)
Eaton 16A Bolted Tag Fuse, 9 x 73mm, 690V ac, 64.3mm
  • RS Stock No. 182-1669
  • Mfr. Part No. 16FC
Each
PHP884.35(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 63A, Fixed Mount
  • RS Stock No. 260-9481
  • Mfr. Part No. C10H4TM063
Each
PHP64,031.43(exc. VAT)
Eaton 100A British Standard Fuse, A3, 500V ac, 73.5mm
  • RS Stock No. 418-984
  • Mfr. Part No. OSD100
Each
PHP1,557.93(exc. VAT)
Siemens SENTRON 5SY Circuit Breaker, 4P, 25A Curve B, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 664-350
  • Mfr. Part No. 5SY6425-6
Each
PHP10,272.32(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, Tmax XT MCCB 4P 25A, Fixed Mount
  • RS Stock No. 236-7545
  • Mfr. Part No. 1SDA067891R1 XT2H 160 Ekip LS/I 25A FF
Each
PHP63,135.63(exc. VAT)
Schneider Electric, Compact MCCB 3P 1.6kA, Fixed Mount
  • RS Stock No. 247-1767
  • Mfr. Part No. 33260
Each
PHP306,968.14(exc. VAT)
Siemens, SENTRON MCCB 1P 60A, Breaking Capacity 18 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-696
  • Mfr. Part No. 3VA5160-5ED11-1AA0
Each
PHP14,701.47(exc. VAT)
Schneider Electric Safety Breaker, 25A Current Rating, 3P Poles, Resi9 Range
  • RS Stock No. 119-395
  • Mfr. Part No. R9PDCS25
Each
PHP48,042.55(exc. VAT)
ABB RCBO, 40A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 136-7810
  • Mfr. Part No. 2CSR255051R1404 DSE201 C40 AC30 - N Blue
Each
PHP5,967.80(exc. VAT)
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C, System Pro M Compact Range
  • RS Stock No. 914-4051
  • Mfr. Part No. 2CSR255051R1204 DSE201 C20 AC30 - N Blue
Each
PHP5,769.04(exc. VAT)
Eaton Eaton Moeller IZMX/INX - ACB Mechanical Interlock for use with INX16, INX40, IZMX16, IZMX40
  • RS Stock No. 246-511
  • Mfr. Part No. 184222 +IZMX-PLPC-P-1
Each
PHP7,844.27(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 100A, Breaking Capacity 5 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-460
  • Mfr. Part No. 3VA5110-4ED41-0AA0
Each
PHP45,597.79(exc. VAT)
RS PRO 6A British Standard Fuse, F1, 550V ac
  • RS Stock No. 521-2905
Each (In a Pack of 5)
PHP319.552(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 600A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 249-328
  • Mfr. Part No. 3VA6460-8HN41-0AA0
Each
PHP466,990.43(exc. VAT)
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