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

33502 Products showing for Fuses & Circuit Breakers

197 of 999+
Better World
Schneider Electric Vigi iDT40 RCD, 40A, 3 Pole, 300mA, 400V
  • RS Stock No. 191-6152
  • Mfr. Part No. A9Y63740
Each
PHP21,222.71(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 100A, Fixed Mount
  • RS Stock No. 260-7488
  • Mfr. Part No. C10W35E100
Each
PHP183,753.17(exc. VAT)
Siemens SENTRON 5SY Circuit Breaker, 2P, 4A Curve D, 440V AC, 60V DC, 50 kA Breaking Capacity
  • RS Stock No. 664-372
  • Mfr. Part No. 5SY8204-8
Each
PHP11,886.54(exc. VAT)
RS PRO PC Board Non Resettable Fuse, Radial 2A, 250V ac
  • RS Stock No. 767-5216
Each (In a Pack of 10)
PHP27.304(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 80A, Fixed Mount
  • RS Stock No. 236-6708
  • Mfr. Part No. 1SDA068353R1 XT4H 160 TMA 80A FF
Each
PHP73,488.30(exc. VAT)
Siemens SENTRON Emergency Push Button
  • RS Stock No. 277-0763
  • Mfr. Part No. 3WA9111-0AH25
Each
PHP20,562.39(exc. VAT)
Siemens, SENTRON MCCB 3P 800A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 270-4860
  • Mfr. Part No. 3VA2580-7HM32-0AA0
Each
PHP368,011.01(exc. VAT)
Inventronics Surge Protector, 5kA, 10kV, Surface Mount Mount
  • RS Stock No. 285-370
  • Mfr. Part No. PU-10KD05KBTA
Each
PHP631.88(exc. VAT)
Schneider Electric, PowerPact MCCB 1P 20A, Breaking Capacity 18 kA, Clip-On
  • RS Stock No. 429-479
  • Mfr. Part No. BDF16020
Each
PHP32,911.46(exc. VAT)
Eaton 30A Green Automotive Car Fuse, 32V dc
  • RS Stock No. 848-2560
  • Mfr. Part No. ATC-30
Each
PHP67.32(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 9 kA, Plug In
  • RS Stock No. 230-886
  • Mfr. Part No. 113581 NZMH3-4-A400/250-AVE
Each
PHP289,504.74(exc. VAT)
Schneider Electric, PowerPact Circuit breaker 3P 124A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 358-357
  • Mfr. Part No. NHDF36125TW
Each
PHP112,773.42(exc. VAT)
ABB S801S MCB, 1P, 80A, UC-B, 250V DC, 50 kA Breaking Capacity
  • RS Stock No. 141-128
  • Mfr. Part No. 2CCS861001R1805
Each
PHP11,323.97(exc. VAT)
Better World
Schneider Electric LV4 Mounting Kit for use with ComPact NSX100/160/250
  • RS Stock No. 219-9352
  • Mfr. Part No. LV429291
Each
PHP34,400.07(exc. VAT)
Better World
Schneider Electric Acti 9 Terminal Block for use with Acti9 Isobar B Type Distribution board, Direct Connection
  • RS Stock No. 806-7304
  • Mfr. Part No. SEA9TB1254
Each
PHP4,249.55(exc. VAT)
Lovato Single Phase Surge Protector, 60kA, DIN Rail Mount
  • RS Stock No. 248-5656
  • Mfr. Part No. SA02PA320R
Each
PHP20,072.80(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-7523
  • Mfr. Part No. 1SDA067844R1 XT2S 160 Ekip I 160A FF
Each
PHP71,704.56(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 10A, Fixed Mount
  • RS Stock No. 236-7520
  • Mfr. Part No. 1SDA067839R1 XT2S 160 Ekip I 10A FF
Each
PHP66,806.95(exc. VAT)
Better World
ABB, XT2L MCCB 3P 20A, Fixed Mount
  • RS Stock No. 236-6489
  • Mfr. Part No. 1SDA067943R1 XT2L 160 Ekip M 20A FF
Each
PHP94,011.18(exc. VAT)
Siemens, SENTRON MCCB 4P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-378
  • Mfr. Part No. 3VA5212-7GD41-0AA0
Each
PHP125,908.71(exc. VAT)
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