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
Fuses - PCB
Fuses - PCB

33476 Products showing for Fuses & Circuit Breakers

70 of 999+
Temporarily out of stock
Eaton xEffect FAZ MCB, 1P, 15A Curve C, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-536
  • Mfr. Part No. 102129 FAZ-C15/1-RT
Each
PHP4,200.71(exc. VAT)
Limited stock
ETI 16A DI Diazed Fuse, E16 Thread Size, gG - gL, 500V ac
  • RS Stock No. 417-852
  • Mfr. Part No. 2311405
Each (In a Pack of 5)
PHP62.48(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4H MCCB 3P 32A, Fixed Mount
  • RS Stock No. 236-6749
  • Mfr. Part No. 1SDA068444R1 XT4H 160 MA 32 FF
Each
PHP44,320.11(exc. VAT)
Temporarily out of stock
Schneider Electric PowerPact Thermal Magnetic Circuit Breaker - PowerPacT 4 Pole 525V Voltage Rating Clip-On, 60A
  • RS Stock No. 358-218
  • Mfr. Part No. BGL46060LU
Each
PHP94,116.53(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 250A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 340-916
  • Mfr. Part No. NJLL36000S25
Each
PHP72,651.10(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 250A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 346-694
  • Mfr. Part No. NJJF36250U53XTW
Each
PHP384,904.95(exc. VAT)
Currently unavailable
Schneider Electric EasyPact Electronic Circuit Breaker 50A, Fixed
  • RS Stock No. 122-417
  • Mfr. Part No. LV510858
Each
PHP4,639.23(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 630A, Fixed Mount
  • RS Stock No. 260-8205
  • Mfr. Part No. C63F42D630
Each
PHP385,990.59(exc. VAT)
Temporarily out of stock
ABB MCCB Molded Case Circuit Breaker 3P 100A, Fixed Mount
  • RS Stock No. 250-4222
  • Mfr. Part No. 1SDA054516R1
Each
PHP271,033.32(exc. VAT)
Temporarily out of stock
Eaton 30A 1 x 3in Open Fuse Fuse Block, 480V
  • RS Stock No. 229-261
  • Mfr. Part No. BG3033S
1 Pack of 6
PHP19,080.43(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 3P 1.6A, Fixed Mount
  • RS Stock No. 237-6205
  • Mfr. Part No. 1SDA067000R1 XT2N 160 TMD 1.6A FF
Each
PHP23,703.72(exc. VAT)
In Stock
Better World
Siemens SENTRON Cover for use with 3VA1 400/630 and 3VA2 400/630
  • RS Stock No. 210-9402
  • Mfr. Part No. 3VA9481-0WF30
Each
PHP5,081.44(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-9484
  • Mfr. Part No. C10L3
Each
PHP65,650.04(exc. VAT)
In Stock
ABB 12 Way Plastic Consumer Unit, 63A, IP65 Mistral65
  • RS Stock No. 183-3758
  • Mfr. Part No. 1SLM006500A2212
Each
PHP3,046.17(exc. VAT)
In Stock
Littelfuse PC Board Non Resettable Fuse, Axial 62mA, 125V ac/dc
  • RS Stock No. 541-3221
  • Mfr. Part No. 0251.062HAT1L
Each (In a Pack of 10)
PHP287.10(exc. VAT)
In Stock
Littelfuse SMD Non Resettable Fuse 1A, 50V ac/dc
  • RS Stock No. 820-7158P
  • Mfr. Part No. 0440001.WR
Each (Supplied on a Reel)
PHP40.908(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, ComPacT NSX MCCB 4P 80A, Fixed Mount
  • RS Stock No. 254-6290
  • Mfr. Part No. C10F4TM080D1
Each
PHP84,589.02(exc. VAT)
Temporarily out of stock
ABB, XT2N MCCB 3P 63A, Fixed Mount
  • RS Stock No. 237-6213
  • Mfr. Part No. 1SDA067016R1 XT2N 160 TMA 63A FF
Each
PHP21,390.51(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric Linergy Busbar, 690V, 60mm Pitch
  • RS Stock No. 219-9103
  • Mfr. Part No. LA9ZX01495
Each (In a Pack of 10)
PHP2,995.03(exc. VAT)
In Stock
Schurter T12 Series Circuit Breaker Cover for 5 x 20mm Fuse, IP54
  • RS Stock No. 284-6230
  • Mfr. Part No. 4400.0405
Each
PHP211.63(exc. VAT)
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