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

16 of 999+
ABB S 200 2CDS252001R MCB, 2P, 2A, Type Z, 400V AC, 125V DC, 230 V Breaking Capacity
  • RS Stock No. 288-0887
  • Mfr. Part No. 2CDS252001R0278
Each
PHP5,330.58(exc. VAT)
Better World
Schneider Electric iC60 RCD, 25A, 2 Pole, 30mA
  • RS Stock No. 776-8731
  • Mfr. Part No. A9V41225
Each
PHP9,068.89(exc. VAT)
Schneider Electric, PowerPact MCCB 3P 200A, Breaking Capacity 14 kA, DIN Rail Mount
  • RS Stock No. 432-912
  • Mfr. Part No. NJDF36200TW
Each
PHP223,887.82(exc. VAT)
ABB S202L MCB, 2P, 10A Curve C, 400V AC, 6 kA Breaking Capacity
  • RS Stock No. 203-697
  • Mfr. Part No. 2CDS242701R0104
Each
PHP3,178.28(exc. VAT)
Eaton xEffect xEffect - FAZ-T MCB, 2P, 40A Curve B, 440V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 129-242
  • Mfr. Part No. 142486 FAZT-B40/2
Each
PHP10,469.03(exc. VAT)
Phoenix Contact 3 Phase Surge Protector, 10kA, DIN Rail Mount
  • RS Stock No. 201-5265
  • Mfr. Part No. 1061383
Each
PHP10,048.50(exc. VAT)
RS PRO 3A F Glass Cartridge Fuse, 6.3 x 32mm
  • RS Stock No. 668-6048
Each (In a Pack of 10)
PHP25.312(exc. VAT)
ABB S800S MCB, 2P, 20A Curve B, 240V AC, 50 kA Breaking Capacity
  • RS Stock No. 141-217
  • Mfr. Part No. 2CCS862001R0205
Each
PHP14,161.84(exc. VAT)
Schneider Electric R9R RCCB, 40A, 2 Pole, 30mA, Type A, 230V ac
  • RS Stock No. 654-662
  • Mfr. Part No. R9R22240
Each
PHP7,667.55(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 2A Curve C, 12 → 60 V, 100 → 130 V, 220 → 240 V, 380
  • RS Stock No. 734-9131
  • Mfr. Part No. A9F74202
Each
PHP9,857.77(exc. VAT)
nVent ERICO Neutral Busbar Busbar
  • RS Stock No. 646-805
  • Mfr. Part No. 568678
Each
PHP797.57(exc. VAT)
Better World
ABB, XT3N MCCB 3P 200A, Breaking Capacity 37.5 kA, Fixed Mount
  • RS Stock No. 236-6652
  • Mfr. Part No. 1SDA068256R1 XT3N 250 TMG 200A FF
Each
PHP68,329.46(exc. VAT)
ABB System Pro M Compact S200 M UC MCB, 2P, 60A, Type Z, 400V AC, 440V DC, 10 kA Breaking Capacity
  • RS Stock No. 200-075
  • Mfr. Part No. 2CDS272061R0588
Each
PHP37,686.13(exc. VAT)
Littelfuse PC Board Non Resettable Fuse, Axial 3A, 125V ac/dc
  • RS Stock No. 541-3293
  • Mfr. Part No. 0251003.NRT1L
Each (In a Pack of 10)
PHP40.788(exc. VAT)
Better World
Schneider Electric, PowerPact MCCB Molded Case Circuit Breaker 3P 20A
  • RS Stock No. 221-0898
  • Mfr. Part No. BGL36020LU
Each
PHP36,184.88(exc. VAT)
Siemens SENTRON 3 Phase Busbar
  • RS Stock No. 187-5203
  • Mfr. Part No. 5ST3740-2
Each
PHP11,486.43(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 3P, 3A Curve C, 440V AC, 180V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-3499
  • Mfr. Part No. A9F74303
Each
PHP16,377.61(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 211-3808
  • Mfr. Part No. 3VA2440-5MN32-0AA0
Each
PHP158,083.78(exc. VAT)
Better World
Schneider Electric Acti 9 iC60N MCB, 1P, 3A Curve C, 240V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-3430
  • Mfr. Part No. A9F74103
Each
PHP4,822.90(exc. VAT)
WJ Furse Copper Alloy Earth Clamp Nominal Rod dia. 16mm
  • RS Stock No. 153-2963
  • Mfr. Part No. 7TCA083220R0010 CR515
Each (In a Pack of 10)
PHP644.383(exc. VAT)
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