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

33483 Products showing for Fuses & Circuit Breakers

14 of 999+
Eaton xEffect FAZ6 MCB, 1P, 6A Curve B, 230V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 247-539
  • Mfr. Part No. 150690 FAZ6-B6/1-SA
Each
PHP2,350.75(exc. VAT)
ABB Enclosure
  • RS Stock No. 237-3372
  • Mfr. Part No. 2CPX042908R9999 TMAX XT4 2R
Each
PHP9,299.21(exc. VAT)
RS PRO 3A F Ceramic Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 413-210
Each (In a Pack of 10)
PHP42.042(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 300A, Breaking Capacity 3 kA, Fixed Mount
  • RS Stock No. 231-304
  • Mfr. Part No. 107519 NZMC2-A300
Each
PHP115,244.73(exc. VAT)
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 80A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 254-6280
  • Mfr. Part No. C10B3TM080
Each
PHP41,858.76(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Axial 1A, 125V ac/dc
  • RS Stock No. 541-3265
  • Mfr. Part No. 251001.NRT1L
Each (In a Pack of 10)
PHP70.785(exc. VAT)
RS PRO 5A Inline Fuse Holder for 5x20mm Fuse, 250V
  • RS Stock No. 284-6487
Each (In a Pack of 10)
PHP146.223(exc. VAT)
Schneider Electric EasyPact Electronic Circuit Breaker 75A, Fixed
  • RS Stock No. 122-419
  • Mfr. Part No. LV510861
Each
PHP4,639.23(exc. VAT)
Better World
Siemens Sentron 5SY6 MCB, 1P, 6A Curve C, 230V AC, 72V DC, 6 kA Breaking Capacity
  • RS Stock No. 489-6625
  • Mfr. Part No. 5SY6106-7
Each
PHP2,957.82(exc. VAT)
Schneider Electric, EasyPact MCCB 3P 250A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 269-6187
  • Mfr. Part No. EZC250H3250
Each
PHP41,420.16(exc. VAT)
ABB, Tmax MCCB 3P 400A, Fixed Mount
  • RS Stock No. 237-5967
  • Mfr. Part No. 1SDA054445R1 T5H400 FF TMA 400A
Each
PHP72,458.15(exc. VAT)
ABB FH200 RCCB, 63A, 4 Pole, 30mA, Type AC, 230/400V ac
  • RS Stock No. 540-1666
  • Mfr. Part No. 2CSF204006R1630 FH204 AC-63/0,03
Each
PHP9,973.92(exc. VAT)
Mersen 4A Ceramic Cartridge Fuse, 10 x 38mm
  • RS Stock No. 188-6962
  • Mfr. Part No. X213598
Each (In a Pack of 10)
PHP123.17(exc. VAT)
RS PRO 2A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-431
Each (In a Pack of 10)
PHP24.907(exc. VAT)
Schneider Electric Acti9 Acti9 iC60 MCB, 2P, 500mA Curve D, 400V AC, 125V DC, 6000 A Breaking Capacity
  • RS Stock No. 287-5952
  • Mfr. Part No. A9F75270
Each
PHP10,317.24(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 1P, 32A Curve C, 230V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-874
  • Mfr. Part No. A9K02132
Each
PHP287.88(exc. VAT)
ABB S302 MCB, 2P, 10A Curve C, 415V AC, 125V DC, 25 kA Breaking Capacity
  • RS Stock No. 200-745
  • Mfr. Part No. 2CDS382001R0104
Each
PHP15,164.77(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 125A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9755
  • Mfr. Part No. LV516302
Each
PHP35,187.07(exc. VAT)
ABB, SACE Tmax T MCCB Molded Case Circuit Breaker 4P 630A, Fixed Mount
  • RS Stock No. 232-0089
  • Mfr. Part No. 1SDA054400R1 T5N630 FF PR221-LS 630A
Each
PHP214,250.25(exc. VAT)
Schneider Electric, EasyPact Circuit breaker 3P 630A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 100-836
  • Mfr. Part No. EZC630N3400N
Each
PHP63,200.97(exc. VAT)
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