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

33476 Products showing for Fuses & Circuit Breakers

22 of 999+
Better World
Schneider Electric ID RCCB, 40A, 2 Pole, 30mA, Type A, 240V ac
  • RS Stock No. 214-2101
  • Mfr. Part No. M9R31240
Each
PHP15,093.09(exc. VAT)
RS PRO 8A F Glass Cartridge Fuse, 5 x 20mm
  • RS Stock No. 563-700
Each (In a Pack of 10)
PHP21.273(exc. VAT)
Better World
Schneider Electric, NSX Range MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 849-3964
  • Mfr. Part No. LV429632
Each
PHP16,393.43(exc. VAT)
Schneider Electric, ComPact MCCB Molded Case Circuit Breaker 3P 220A, Fixed Mount
  • RS Stock No. 221-1048
  • Mfr. Part No. LV433517
Each
PHP190,581.27(exc. VAT)
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)
Schneider Electric, ComPacT MCCB 3P 800A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-144
  • Mfr. Part No. C080N320FM
Each
PHP239,493.92(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 320A, Breaking Capacity 55 kA
  • RS Stock No. 209-7033
  • Mfr. Part No. 3VA1463-5EF32-0AA0
Each
PHP174,168.74(exc. VAT)
ABB Circuit Breaker Accessory
  • RS Stock No. 225-5865
  • Mfr. Part No. 1SDA060399R1 MOE 380VAC T6
Each
PHP70,974.72(exc. VAT)
RS PRO PC Board Non Resettable Fuse, Axial 12A, 32V ac/dc
  • RS Stock No. 764-9504
Each (In a Pack of 10)
PHP31.217(exc. VAT)
Better World
Schneider Electric, Compact MCCB 4P 100A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 178-8162
  • Mfr. Part No. LV426267
Each
PHP26,085.77(exc. VAT)
RS PRO PC Board Non Resettable Fuse, Radial 1A, 250V
  • RS Stock No. 767-5140
Each (In a Pack of 10)
PHP17.32(exc. VAT)
Better World
ABB System Pro M Compact S200 MCB, 2P, 2A Curve D, 400V AC, 125V DC, 10 kA Breaking Capacity
  • RS Stock No. 746-7848
  • Mfr. Part No. 2CDS252001R0021 S202-D2
Each
PHP4,396.44(exc. VAT)
ABB, SACE FORMULA MCCB Molded Case Circuit Breaker 1P 100A, Fixed Mount
  • RS Stock No. 231-9294
  • Mfr. Part No. 1SDA074167R1 EKIP 2K-1 E1.2..E6.2-Tmax
Each
PHP8,848.23(exc. VAT)
Schneider Electric, EasyPact Circuit breaker 3P 630A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 100-836
  • Mfr. Part No. EZC630N3400N
Each
PHP63,200.97(exc. VAT)
Better World
Schneider Electric RCBO, 32A Current Rating, 1P Poles, 30mA Trip Sensitivity, Type C, Acti9 Range
  • RS Stock No. 201-2239
  • Mfr. Part No. A9DC3632
Each
PHP14,970.83(exc. VAT)
Mersen 1kA size 33 FF Square Body Fuse, aR, 700V
  • RS Stock No. 304-2243
  • Mfr. Part No. B300082
Each
PHP27,367.04(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 1P, 10A Curve C, 230V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-916
  • Mfr. Part No. A9K02110
Each
PHP287.88(exc. VAT)
ABB, Tmax MCCB 3P 320A, Fixed Mount
  • RS Stock No. 237-5961
  • Mfr. Part No. 1SDA054320R1 T5N400 FF PR222-LSI 320A
Each
PHP79,834.83(exc. VAT)
ABB RCBO, 20A Current Rating, 2P Poles, 30mA Trip Sensitivity, System Pro M Compact Range
  • RS Stock No. 201-6960
  • Mfr. Part No. 2CSR255080R1404 DS201 C40 AC30
Each
PHP6,681.92(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 200A, Fixed Mount
  • RS Stock No. 260-8013
  • Mfr. Part No. C25V3TM200
Each
PHP201,904.72(exc. VAT)
Results per page
1
22
1674

Related links