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

28 of 999+
Temporarily out of stock
ABB, Tmax XT MCCB 3P 40A, Fixed Mount
  • RS Stock No. 236-7281
  • Mfr. Part No. 1SDA067412R1 XT1N 160 TMD 40A FF
Each
PHP19,668.75(exc. VAT)
In Stock
ABB 24 → 30V ac/dc Shunt Trip Shunt trip for use with Tmax XT1, Tmax XT2, Tmax XT3, Tmax XT4
  • RS Stock No. 831-9194
  • Mfr. Part No. 1SDA066322R1 SOR-C XT1..XT4 F/P 24-30 Vac/dc
Each
PHP8,025.30(exc. VAT)
In Stock
Eaton 10A Red Blade Car Fuse, 32V dc
  • RS Stock No. 852-7326
  • Mfr. Part No. ATM-10
Each
PHP169.03(exc. VAT)
In Stock
Mersen 10A D01 Neozed Fuse, gG, 400V ac
  • RS Stock No. 377-0241
  • Mfr. Part No. W211090
Each (In a Pack of 5)
PHP106.84(exc. VAT)
Temporarily out of stock
ABB S302 MCB, 2P, 10A Curve C, 415V AC, 125V DC, 25 kA Breaking Capacity
  • RS Stock No. 200-745
  • Mfr. Part No. 2CDS382001R0104
Each
PHP15,164.77(exc. VAT)
Temporarily out of stock
ABB MCCB 3P 160A, Breaking Capacity 65 kA
  • RS Stock No. 192-0840
  • Mfr. Part No. 1SDA067058R1
Each
PHP49,291.69(exc. VAT)
Temporarily out of stock
Better World
Schneider Electric, Compact MCCB 3P 50A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 212-0268
  • Mfr. Part No. LV433256
Each
PHP68,034.55(exc. VAT)
In Stock
MECATRACTION Lightning Earth Clamp
  • RS Stock No. 200-6944
  • Mfr. Part No. C6RG2-35
Each (In a Box of 6)
PHP421.115(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 4P 800A, Breaking Capacity 30 kA, Fixed Mount
  • RS Stock No. 341-271
  • Mfr. Part No. C080H45AFM
Each
PHP926,233.37(exc. VAT)
In Stock
Schneider Electric Multi9 M9F MCB Mini Circuit Breaker, 2P, 40A Curve C, 500V DC, 10 kA Breaking Capacity
  • RS Stock No. 654-851
  • Mfr. Part No. M9U21240
Each
PHP8,597.41(exc. VAT)
Temporarily out of stock
Penta Fiberglass Earth Clamp Max. Conductor Size Cable CC 70mm² / terre 35mm² 317.5mm
  • RS Stock No. 248-9892
  • Mfr. Part No. PIMT49S
Each
PHP172,598.73(exc. VAT)
In Stock
Eaton PKZ0 Circuit Breaker for use with PKZM0, PKZM4
  • RS Stock No. 272-7215
  • Mfr. Part No. 106137 PKZ0-XRH-MCC
Each
PHP6,023.17(exc. VAT)
In Stock
Dehn Stainless Steel Lightning Earth Clamp Nominal Rod dia. 8-10mm
  • RS Stock No. 786-9358
  • Mfr. Part No. M8 UNI PV
Each
PHP1,260.34(exc. VAT)
Last RS stock
SIBA 30A DII Diazed Fuse, E27 Thread Size, gR, 500V ac
  • RS Stock No. 421-514
  • Mfr. Part No. 10-005-07/30A
Each (In a Pack of 5)
PHP425.966(exc. VAT)
Limited stock
RS PRO 5A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 541-3108
Each (In a Pack of 10)
PHP18.105(exc. VAT)
Temporarily out of stock
Schneider Electric Masterpact Control Unit for use with Masterpact NW Series Circuit Breaker
  • RS Stock No. 247-1902
  • Mfr. Part No. 48500
Each
PHP306,201.26(exc. VAT)
In Stock
Eaton 32A British Standard Fuse, A2, 500V, 73.5mm
  • RS Stock No. 156-8608
  • Mfr. Part No. AAO32M50
Each (In a Pack of 5)
PHP472.926(exc. VAT)
In Stock
Better World
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 100A, Fixed Mount
  • RS Stock No. 232-0265
  • Mfr. Part No. 1SDA068055R1 XT3N 250 TMD 100A FF
Each
PHP34,143.00(exc. VAT)
In Stock
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 250A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 254-6357
  • Mfr. Part No. C25F3TM250
Each
PHP126,326.16(exc. VAT)
Temporarily out of stock
RS PRO Three Phase Industrial Surge Protector, 50kA, 1.25kV, DIN Rail Mount
  • RS Stock No. 101-736
Each
PHP7,999.64(exc. VAT)
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