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

1621 of 999+
Eaton 224A NH Fuse, 71 x 54 x 150mm, 690V ac
  • RS Stock No. 255-000
  • Mfr. Part No. 224NHM2B-690
1 Pack of 3
PHP5,627.05(exc. VAT)
ABB Tmax XT Connection Kit for use with Tmax XT
  • RS Stock No. 237-6195
  • Mfr. Part No. 1SDA066985R1 XT2-XT4 W
Each
PHP6,853.64(exc. VAT)
Schurter SMD Non Resettable Fuse 1A, 125V ac/dc
  • RS Stock No. 173-7869
  • Mfr. Part No. 3410.0031.01
Each (In a Bag of 100)
PHP164.795(exc. VAT)
FUSE 125V FA SAFE-T-PLUS FUSE .125A
  • RS Stock No. 552-981
  • Mfr. Part No. 0259.125M
1 Bag of 10
PHP3,064.38(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7507
  • Mfr. Part No. C10W45E100
Each
PHP222,190.59(exc. VAT)
Schneider Electric, ComPacT New Generation MCCB 4P 125A, Fixed Mount
  • RS Stock No. 260-7816
  • Mfr. Part No. C16N4TM125
Each
PHP87,513.82(exc. VAT)
Schneider Electric EasyPact Electronic Circuit Breaker 25A, Fixed
  • RS Stock No. 122-505
  • Mfr. Part No. LV510561
Each
PHP14,470.69(exc. VAT)
Better World
ABB, XT4L MCCB 4P 125A, Fixed Mount
  • RS Stock No. 236-6731
  • Mfr. Part No. 1SDA068388R1 XT4L 160 TMA 125A 3P+N FF
Each
PHP92,467.18(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4586
  • Mfr. Part No. 3VA2125-7MP36-0AA0
Each
PHP87,080.88(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 50A, Breaking Capacity 55 kA
  • RS Stock No. 210-1667
  • Mfr. Part No. 3VA1150-5EF42-0AA0
Each
PHP35,012.42(exc. VAT)
Wickmann 4.2A Resettable Fuse, 30V dc
  • RS Stock No. 174-0895
  • Mfr. Part No. RF1672-000
Each (In a Pack of 100)
PHP38.313(exc. VAT)
Siemens SENTRON Mounting Rail for use with Circuit Breaker
  • RS Stock No. 269-8419
  • Mfr. Part No. 8US1998-7CA16
Each (In a Pack of 10)
PHP210.192(exc. VAT)
Schurter SMD Non Resettable Fuse 4A, 125 V dc, 250V ac
  • RS Stock No. 173-8012
  • Mfr. Part No. 3403.0172.24
1 Reel of 2000
PHP69,109.60(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 125A, Fixed Mount
  • RS Stock No. 260-7706
  • Mfr. Part No. C12N4TM125L
Each
PHP79,197.66(exc. VAT)
Eaton IZMX/INX Electronic Circuit Breaker 800A , Fixed
  • RS Stock No. 132-919
  • Mfr. Part No. 183810 IZMX40B4-P08F-1
Each
PHP903,634.41(exc. VAT)
Better World
ABB, Tmax XT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 236-7509
  • Mfr. Part No. 1SDA067819R1 XT2S 160 Ekip LSIG 160A FF
Each
PHP120,845.15(exc. VAT)
Siemens Circuit Trip
  • RS Stock No. 223-7650
  • Mfr. Part No. 5TT4455-5
Each
PHP9,835.37(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3951
  • Mfr. Part No. 3VA2110-6HK46-0AA0
Each
PHP74,219.59(exc. VAT)
ABB, Tmax XT MCCB 4P 10A, Fixed Mount
  • RS Stock No. 237-6238
  • Mfr. Part No. 1SDA067096R1 XT2N 160 Ekip I 10A FF
Each
PHP63,317.13(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-8027
  • Mfr. Part No. C25V4TM160
Each
PHP220,740.93(exc. VAT)
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