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

33477 Products showing for Fuses & Circuit Breakers

59 of 999+
In Stock
Eaton IKA Standard Distribution Board Distribution Board
  • RS Stock No. 125-765
  • Mfr. Part No. 174209 IKA-1/18-OT
Each
PHP6,055.11(exc. VAT)
Temporarily out of stock
Better World
Siemens SENTRON Electronic Circuit Breaker 400A 3VA2, 4 channels
  • RS Stock No. 156-621
  • Mfr. Part No. 3VA2440-8HM42-0AA0
Each
PHP366,678.42(exc. VAT)
In Stock
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 874-4275
  • Mfr. Part No. 3VA1163-4EF36-0AA0
Each
PHP27,756.96(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 6A Curve C, 100 → 133V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 791-3290
  • Mfr. Part No. A9F54106
Each
PHP7,782.55(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 4P 50A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 178-8109
  • Mfr. Part No. LV426174
Each
PHP28,646.13(exc. VAT)
In Stock
Schurter OGN Series Thermoplastic PCB Mount Fuse Holder Cover for 5 x 20mm Fuse, IP00
  • RS Stock No. 173-9731
  • Mfr. Part No. 0853.0551
Each (In a Bag of 100)
PHP27.329(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 45A
  • RS Stock No. 221-0895
  • Mfr. Part No. BDL36045LU
Each
PHP26,265.03(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 C120N MCB, 3P, 63A Curve C, 440V AC, 375V DC, 10 kA, 20 kA Breaking Capacity
  • RS Stock No. 776-3060
  • Mfr. Part No. A9N18364
Each
PHP23,155.43(exc. VAT)
Being discontinued
RS PRO PC Board Non Resettable Fuse, Axial 1.5A, 250V ac
  • RS Stock No. 764-9582
Each (In a Pack of 10)
PHP39.82(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 3P, 16A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-922
  • Mfr. Part No. A9K12316
Each
PHP2,066.70(exc. VAT)
In Stock
Better World
Schneider Electric RCBO, 20A Current Rating, 1P+N Poles, Type AB, Easy9 Range
  • RS Stock No. 850-8656
  • Mfr. Part No. EZ9D16820
Each
PHP2,117.04(exc. VAT)
In Stock
Wickmann 1.1A Resettable Fuse, 24V dc
  • RS Stock No. 174-0772
  • Mfr. Part No. 1812L110/24DR
Each (In a Pack of 10)
PHP28.908(exc. VAT)
In Stock
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 20A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0213
  • Mfr. Part No. 1SDA066800R1 XT1B 160 TMD 20A FF
Each
PHP17,746.33(exc. VAT)
In Stock
Schneider Electric, ComPacT MCCB 3P 400A, Fixed Mount
  • RS Stock No. 260-8121
  • Mfr. Part No. C40N3
Each
PHP84,823.21(exc. VAT)
In Stock
HENSEL 1, 3 Phase Distribution Board, 9 Way, 63 A
  • RS Stock No. 183-2856
  • Mfr. Part No. KV7109
Each
PHP4,442.30(exc. VAT)
In Stock
Better World
Schneider Electric TeSys GV5P MCB, 3P, 150A, 690V AC, 36 kA Breaking Capacity
  • RS Stock No. 188-4748
  • Mfr. Part No. GV5P150F
Each
PHP59,379.68(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 600A, Fixed Mount
  • RS Stock No. 260-8242
  • Mfr. Part No. C63S3TM600D
Each
PHP194,141.05(exc. VAT)
Temporarily out of stock
Phoenix Contact 3 Phase Surge Protector, 10kA, DIN Rail Mount
  • RS Stock No. 201-5265
  • Mfr. Part No. 1061383
Each
PHP10,048.50(exc. VAT)
In Stock
ABB, Protecta MCCB 3P 250A, DIN Rail Mount
  • RS Stock No. 831-9185
  • Mfr. Part No. 1SDA068210R1 XT3D 250 3p F F
Each
PHP18,914.64(exc. VAT)
In Stock
Phoenix Contact Busbar
  • RS Stock No. 290-1258
  • Mfr. Part No. 0402174
Each
PHP1,469.56(exc. VAT)
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