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

1649 of 999+
ABB, Tmax XT MCCB 4P 6.3A, Fixed Mount
  • RS Stock No. 236-7365
  • Mfr. Part No. 1SDA067567R1 XT2S 160 TMD 6.3A FF
Each
PHP31,091.51(exc. VAT)
Wickmann Resettable Fuse, 125V
  • RS Stock No. 174-0683
  • Mfr. Part No. 0473003.MRT1L
Each (In a Pack of 5)
PHP107.95(exc. VAT)
Siemens SENTRON Connection Kit
  • RS Stock No. 277-0891
  • Mfr. Part No. 3WA9111-0BG02
Each
PHP11,439.50(exc. VAT)
Bourns 70A Tag Fuse, 66mm, 500V ac, 24.1mm
  • RS Stock No. 254-4200
  • Mfr. Part No. PF-JT3-70
Each (In a Box of 80)
PHP1,266.691(exc. VAT)
Better World
Siemens, 3VA2 MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-3343
  • Mfr. Part No. 3VA2140-6KP46-0AA0
Each
PHP127,090.26(exc. VAT)
Eaton 167892 FRCDM RCCB, 25A, 4 Pole, 230V ac
  • RS Stock No. 282-7017
  • Mfr. Part No. 167892 FRCDM-25/4/003-G/B
Each
PHP76,631.05(exc. VAT)
Eaton xEffect - FBSmV RCCB, 63A, 3 Pole, 100mA, Type S, 240/415V ac
  • RS Stock No. 121-228
  • Mfr. Part No. 170147 FBSMV-63/3/01-S
Each
PHP21,640.46(exc. VAT)
Bourns 63A Tag Fuse, 66mm, 500V ac, 24.1mm
  • RS Stock No. 254-4198
  • Mfr. Part No. PF-JT3-63
Each (In a Box of 80)
PHP1,209.265(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 100A, Fixed Mount
  • RS Stock No. 260-7980
  • Mfr. Part No. C25R45E100
Each
PHP278,737.42(exc. VAT)
Better World
ABB, XT4L MCCB 4P 100A, Fixed Mount
  • RS Stock No. 236-6828
  • Mfr. Part No. 1SDA068578R1 XT4L 160 Ekip I 100A FF
Each
PHP109,983.54(exc. VAT)
Better World
ABB, XT2S MCCB 3P 80A, Fixed Mount
  • RS Stock No. 236-7474
  • Mfr. Part No. 1SDA067745R1 XT2S 160 TMG 80A FF
Each
PHP43,351.50(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 160A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 271-9772
  • Mfr. Part No. 3VA1116-4FE42-0AA0
Each
PHP74,687.89(exc. VAT)
ABB SU200 M MCB, 4P, 1.6A, Type Z, 480V AC, 15 kA Breaking Capacity
  • RS Stock No. 201-119
  • Mfr. Part No. 2CDS274337R0258
Each
PHP44,169.07(exc. VAT)
Siemens, SENTRON MCCB 4P 225A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-346
  • Mfr. Part No. 3VA5222-7GC41-0AA0
Each
PHP169,119.73(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-3928
  • Mfr. Part No. 3VA2110-0HN36-0AA0
Each
PHP82,438.37(exc. VAT)
Eaton xEffect - FRCmM RCCB, 80A, 2 Pole, 30mA, 240V ac
  • RS Stock No. 123-268
  • Mfr. Part No. 170386 FRCMM-80/2/003-G/A
Each
PHP33,288.73(exc. VAT)
Schurter SMD Non Resettable Fuse 1.6A, 63V ac/dc
  • RS Stock No. 782-3712
  • Mfr. Part No. 3402.0011.11
Each (In a Pack of 10)
PHP48.314(exc. VAT)
Phoenix Contact 1 Phase Industrial Surge Protector, On Base Element Mount
  • RS Stock No. 220-5787
  • Mfr. Part No. 1106015
Each
PHP11,151.44(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 209-5110
  • Mfr. Part No. 3VA2063-6HN42-0AA0
Each
PHP60,984.37(exc. VAT)
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0302
  • Mfr. Part No. 8GK1062-3KK31
Each
PHP89,764.23(exc. VAT)
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