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

148 of 999+
Temporarily out of stock
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 211-3725
  • Mfr. Part No. 3VA1125-3EE42-0AA0
Each
PHP26,276.56(exc. VAT)
Temporarily out of stock
ABB S303 MCB, 3P, 6A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 201-327
  • Mfr. Part No. 2CDS383001R0064
Each
PHP26,454.09(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact Circuit breaker 3P 600A, Breaking Capacity 25 kA
  • RS Stock No. 339-663
  • Mfr. Part No. PJA36000S60
Each
PHP170,614.41(exc. VAT)
Temporarily out of stock
Siemens SENTRON Interlock Kit for use with 3VA13/14, 3VA23/24
  • RS Stock No. 152-783
  • Mfr. Part No. 3VA9367-0VF10
Each
PHP8,573.72(exc. VAT)
In Stock
Acti9 Busbar, 415V ac, 18mm Pitch
  • RS Stock No. 585-483
  • Mfr. Part No. A9XPH316
1 Pack of 5
PHP20,477.67(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 3P, 25A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 204-387
  • Mfr. Part No. 2CDS273061R0518
Each
PHP45,451.33(exc. VAT)
Temporarily out of stock
Siemens SENTRON Wire Connector for use with 3VA1 250
  • RS Stock No. 210-9342
  • Mfr. Part No. 3VA9253-0JF60
Each
PHP9,466.13(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Masterpact MCCB 4P 3.2kA, Fixed Mount
  • RS Stock No. 248-3813
  • Mfr. Part No. LV848319
Each
PHP2,597,142.81(exc. VAT)
Temporarily out of stock
ABB System Pro M Compact S200 M UC MCB, 1P, 20A Curve K, 230V AC, 220V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-035
  • Mfr. Part No. 2CDS271061R0487
Each
PHP9,837.72(exc. VAT)
In Stock
ABB S801 Circuit Breaker, 1P, 16A Curve C, 400V AC, 125V DC, 15 kA Breaking Capacity
  • RS Stock No. 287-6379
  • Mfr. Part No. 2CCS861001R0164
Each
PHP5,343.14(exc. VAT)
Temporarily out of stock
Eaton 315A Tag Fuse, 3L, 1.5kV, 205mm
  • RS Stock No. 282-6478
  • Mfr. Part No. BSF-315G-3XL15
Each
PHP33,694.27(exc. VAT)
Limited stock
Limitor Thermal Fuse +130°C 5 A, 250V ac
  • RS Stock No. 124-5061
  • Mfr. Part No. A4-5AF
Each (In a Pack of 5)
PHP74.59(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Axial 2A, 125V ac/dc
  • RS Stock No. 541-3287
  • Mfr. Part No. 251002.NRT1L
Each (In a Pack of 10)
PHP64.754(exc. VAT)
Temporarily out of stock
Eaton 400A Bolted Tag Fuse, 415V ac, 92mm
  • RS Stock No. 181-8598
  • Mfr. Part No. 400PJ31-7
1 Box of 5
PHP26,191.97(exc. VAT)
Temporarily out of stock
Siemens SENTRON 1 Phase Busbar
  • RS Stock No. 266-603
  • Mfr. Part No. 8US1620-5AK02
1 Pack of 6
PHP3,919.05(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 4P 16A, Breaking Capacity 25kA, Fixed Mount
  • RS Stock No. 260-9719
  • Mfr. Part No. LV510310
Each
PHP29,097.94(exc. VAT)
In Stock
Schneider Electric Linergy Busbar
  • RS Stock No. 130-977
  • Mfr. Part No. LVS04545
Each
PHP47,135.41(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Radial 5A, 125V ac/dc
  • RS Stock No. 878-1754
  • Mfr. Part No. 0273005.H
Each
PHP445.90(exc. VAT)
Temporarily out of stock
Hager RCCB, 40A, 4 Pole, 30mA
  • RS Stock No. 144-4889
  • Mfr. Part No. CDC840F
Each
PHP20,650.97(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7943
  • Mfr. Part No. C25N3TM160
Each
PHP111,677.44(exc. VAT)
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