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

33493 Products showing for Fuses & Circuit Breakers

82 of 999+
Schneider Electric Resi9 Distribution Board, 63 A
  • RS Stock No. 276-8946
  • Mfr. Part No. R9H13401
Each
PHP2,481.72(exc. VAT)
Littelfuse SMD Non Resettable Fuse 1.5A, 125V
  • RS Stock No. 738-2876
  • Mfr. Part No. 015401.5DRT
Each (In a Pack of 10)
PHP160.427(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-475
  • Mfr. Part No. 3VA6210-5HM31-2AA0
Each
PHP173,013.72(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 630A, Fixed Mount
  • RS Stock No. 260-8220
  • Mfr. Part No. C63L4
Each
PHP280,707.39(exc. VAT)
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 3 kA
  • RS Stock No. 245-722
  • Mfr. Part No. 3VA6210-7JP31-0AA0
Each
PHP220,665.81(exc. VAT)
Schneider Electric, ComPacT New Generation MCCB 3P 250A, Breaking Capacity 65 kA, DIN Rail Mount
  • RS Stock No. 245-119
  • Mfr. Part No. NJGF36250TW
Each
PHP106,960.96(exc. VAT)
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-371
  • Mfr. Part No. 3VA5140-5EC41-0AA0
Each
PHP35,403.15(exc. VAT)
Schneider Electric Busbar Trunking Joint, KSC40 Series
  • RS Stock No. 207-366
  • Mfr. Part No. KSC400DLF40
Each
PHP150,150.02(exc. VAT)
Siemens ALPHA Distribution Board
  • RS Stock No. 272-0311
  • Mfr. Part No. 8GK1062-5KK41
Each
PHP123,812.61(exc. VAT)
Better World
Siemens 5SV3 RCCB, 80A, 4 Pole, 300mA, Type A, 400V ac
  • RS Stock No. 211-9714
  • Mfr. Part No. 5SV3647-6KK12
Each
PHP86,426.23(exc. VAT)
Schneider Electric 1.25kA Neutral Link for DIN Fuses
  • RS Stock No. 358-106
  • Mfr. Part No. LV481918
Each
PHP18,796.91(exc. VAT)
ABB Tmax for use with Tmax XT
  • RS Stock No. 237-5987
  • Mfr. Part No. 1SDA055057R1 TA EXT NET T5 400A
Each
PHP17,121.23(exc. VAT)
Eaton xEffect FAZ MCB, 1P, 8A Curve D, 240V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 243-542
  • Mfr. Part No. 102146 FAZ-D8/1-RT
Each
PHP4,816.53(exc. VAT)
ABB Tmax T Cover for use with Tmax T
  • RS Stock No. 232-0117
  • Mfr. Part No. 1SDA054958R1 HTC T4 F
Each
PHP3,446.36(exc. VAT)
Better World
Schneider Electric Horizontal Distribution Busbar Trunking, 5m, 500A, Canalis KS Series
  • RS Stock No. 211-0471
  • Mfr. Part No. KSA500ED45018
Each
PHP249,413.75(exc. VAT)
Eaton Distribution Parts End Cap for use with BB-EV
  • RS Stock No. 247-519
  • Mfr. Part No. 168879 BB-EV-EC/N
1 Pack of 10
PHP573.23(exc. VAT)
ABB RCBO, 16A Current Rating, 2P Poles, Type AC
  • RS Stock No. 231-9948
  • Mfr. Part No. 2CSR255170R1164 DSH201 C16 A30
1 Box of 1
PHP4,705.32(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 200A, Breaking Capacity 70 kA
  • RS Stock No. 209-7029
  • Mfr. Part No. 3VA1220-6EF32-0AA0
Each
PHP56,869.40(exc. VAT)
Schneider Electric ComPacT New Generation Trip Unit for use with ComPacT NSX 250 Circuit Breakers
  • RS Stock No. 212-359
  • Mfr. Part No. C2547A250
Each
PHP282,401.64(exc. VAT)
Better World
Schneider Electric, Power Tag, 2mA, POWERTAG, 3W, Wired
  • RS Stock No. 248-3710
  • Mfr. Part No. A9XMC2D3
Each
PHP10,298.76(exc. VAT)
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