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

1631 of 999+
Temporarily out of stock
ABB SMISSLINE Busbar for Smissline TP
  • RS Stock No. 246-2349
  • Mfr. Part No. 2CCF800260R0001
Each
PHP1,687.08(exc. VAT)
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7317
  • Mfr. Part No. 1SDA067496R1 MA 160 Im=800...1600 XT4 3
Each
PHP34,063.17(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 40A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-4634
  • Mfr. Part No. 3VA2140-6JP42-0AA0
Each
PHP121,082.13(exc. VAT)
Temporarily out of stock
Socomec 200 Centred Tag Fuse, S2
  • RS Stock No. 223-2866
  • Mfr. Part No. 68730200
Each (In a Pack of 3)
PHP2,169.327(exc. VAT)
In Stock
Sensata Airpax Airpax Thermal Circuit Breaker - IEG66 2 Pole Panel Mount, 35A Current Rating
  • RS Stock No. 275-0207
  • Mfr. Part No. IEG66-1-51-35.0-A-01-V
1 Box of 5
PHP31,042.44(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 260-7977
  • Mfr. Part No. C25R42D160
Each
PHP213,500.54(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 630A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 270-4808
  • Mfr. Part No. 3VA2563-5KQ42-0AA0
Each
PHP278,853.04(exc. VAT)
Temporarily out of stock
Siemens ALPHA Assembly Kit for use with 3VA1 Molded Case Circuit Breakers
  • RS Stock No. 629-357
  • Mfr. Part No. 8GK4734-3KK22
Each
PHP14,087.75(exc. VAT)
Temporarily out of stock
Eaton xComfort KLV Distribution Board Enclosure
  • RS Stock No. 124-769
  • Mfr. Part No. 178801 KLV-24UPP-SF
Each
PHP10,878.10(exc. VAT)
Temporarily out of stock
Eaton IZMX40B3-P08F-1 Electronic Circuit Breaker 800A , Fixed
  • RS Stock No. 132-635
  • Mfr. Part No. 183574 IZMX40B3-P08F-1
Each
PHP728,259.38(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 2.5 kA, Fixed Mount
  • RS Stock No. 270-4740
  • Mfr. Part No. 3VA2163-7HM32-0AA0
Each
PHP79,280.24(exc. VAT)
In Stock
Schurter SMD Non Resettable Fuse 6.3A, 125 V dc, 250V ac
  • RS Stock No. 173-8121
  • Mfr. Part No. 3403.0174.24
1 Reel of 2000
PHP85,918.93(exc. VAT)
Temporarily out of stock
ABB RCBO, 13A Current Rating, 4P Poles, Type C
  • RS Stock No. 237-5114
  • Mfr. Part No. 2CSR254101R1134
Each
PHP29,377.15(exc. VAT)
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 3P 40A, Breaking Capacity 200 kA, Fixed Mount
  • RS Stock No. 270-4609
  • Mfr. Part No. 3VA2140-0KQ32-0AA0
Each
PHP143,580.98(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 200A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-322
  • Mfr. Part No. 3VA5220-7GC41-2AA0
Each
PHP164,649.63(exc. VAT)
Temporarily out of stock
Eaton 5A T Melamine Cartridge Fuse, 1.5 x 0.41in
  • RS Stock No. 261-345
  • Mfr. Part No. LP-CC-5
1 Pack of 10
PHP35,961.15(exc. VAT)
Temporarily out of stock
Bourns Surface Mount Fuse 10A, 32V dc
  • RS Stock No. 245-9239
  • Mfr. Part No. SF-1206SA1000R-2
Each (On a Reel of 5000)
PHP36.354(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 100A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-925
  • Mfr. Part No. 3VA5210-5ED41-2AA0
Each
PHP96,852.69(exc. VAT)
In Stock
Bourns Surface Mount Fuse 2A, 50 V dc, 63 V dc
  • RS Stock No. 245-9201
  • Mfr. Part No. SF-0603SPA200R-2
Each
PHP72.92(exc. VAT)
Temporarily out of stock
RS PRO SMD Non-Resettable Surface Mount Fuse 6A, 63V
  • RS Stock No. 252-2208
Each (In a Pack of 50)
PHP11.592(exc. VAT)
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