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

33493 Products showing for Fuses & Circuit Breakers

108 of 999+
Temporarily out of stock
ABB S800S MCB, 2P, 40A Curve D, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 140-911
  • Mfr. Part No. 2CCS862001R0401
Each
PHP16,286.19(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 3 channels
  • RS Stock No. 156-834
  • Mfr. Part No. 3VA2340-0HM32-0AA0
Each
PHP251,584.20(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4L MCCB 4P 250A, Fixed Mount
  • RS Stock No. 236-6636
  • Mfr. Part No. 1SDA068181R1 XT4L 250 BLOC FF
Each
PHP59,047.72(exc. VAT)
In Stock
ABB RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type B, System Pro M Compact Range
  • RS Stock No. 201-6930
  • Mfr. Part No. 2CSR255180R1165 DS201 B16 A30
Each
PHP14,514.77(exc. VAT)
Temporarily out of stock
Eaton xEffect xE?ect - FAZ-NA-DC MCB MCB, 2P, 5A Curve C, 500V DC, 10 kA Breaking Capacity
  • RS Stock No. 103-942
  • Mfr. Part No. 137252 FAZ-C5/2-NA-DC
Each
PHP18,150.96(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 1.6kA, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 429-184
  • Mfr. Part No. C160N32EFM
Each
PHP1,037,434.28(exc. VAT)
Temporarily out of stock
Sensata Airpax Airpax Thermal Circuit Breaker - PR11 Single Pole Panel Mount, 5A Current Rating
  • RS Stock No. 275-0437
  • Mfr. Part No. PR11-62-5.00A-XX-V
Each
PHP1,669.93(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Straight Busbar Trunking, 3m, 25A, KBB Series
  • RS Stock No. 219-8861
  • Mfr. Part No. KBB25ED44305TW
Each
PHP23,730.47(exc. VAT)
Temporarily out of stock
Siemens SENTRON 5SY6 MCB, 2P, 30A Curve C, 400V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 610-378
  • Mfr. Part No. 5SY6230-7
Each
PHP7,337.37(exc. VAT)
Temporarily out of stock
Eaton IZMX16 Electronic Circuit Breaker 800A , Fixed
  • RS Stock No. 127-705
  • Mfr. Part No. 183337 IZMX16H3-V08F-1
Each
PHP371,812.86(exc. VAT)
Temporarily out of stock
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0328
  • Mfr. Part No. 8GK1082-3KK11
Each
PHP38,846.02(exc. VAT)
Temporarily out of stock
Siemens SENTRON 4 Phase Busbar
  • RS Stock No. 187-5212
  • Mfr. Part No. 5ST3746-5
Each
PHP12,029.09(exc. VAT)
In Stock
KYOCERA AVX SMD Non Resettable Fuse 200mA, 63V
  • RS Stock No. 707-6837
  • Mfr. Part No. F1206B0R20FSTR
Each (In a Pack of 10)
PHP69.478(exc. VAT)
In Stock
RS PRO PC Board Non Resettable Fuse, Radial 200mA, 250V
  • RS Stock No. 767-5187
Each (In a Pack of 10)
PHP33.797(exc. VAT)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar, 230V, 18mm Pitch
  • RS Stock No. 187-5238
  • Mfr. Part No. 5ST3786-0
Each
PHP6,783.17(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Compact Nsx, Easypact Cvs Cable Connector for use with 1 Cable 35 mm2 →300 mm2
  • RS Stock No. 221-1227
  • Mfr. Part No. LV432479
Each
PHP10,999.26(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 250A, Breaking Capacity 15 kA, Fixed Mount
  • RS Stock No. 429-406
  • Mfr. Part No. C25F6TM250
Each
PHP212,894.12(exc. VAT)
Temporarily out of stock
Siemens SENTRON Terminal for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9390
  • Mfr. Part No. 3VA9403-0QE00
Each
PHP9,358.71(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 13A Current Rating, 2P Poles, 10mA Trip Sensitivity, SENTRON Range
  • RS Stock No. 211-9595
  • Mfr. Part No. 5SU1154-6KK13
Each
PHP11,894.17(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Acti9 iIG40K RCCB, 40A, 3+N Pole, 300mA, Type AC, 380 → 415V ac
  • RS Stock No. 238-3478
  • Mfr. Part No. A9R79740
Each
PHP25,180.03(exc. VAT)
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