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

101 of 999+
Temporarily out of stock
Eaton PFIM RCCB, 40A, 2 Pole, 30mA, Type F, Type G, 230V ac
  • RS Stock No. 246-637
  • Mfr. Part No. 187450 PFIM-40/2/003-G/F
Each
PHP13,635.83(exc. VAT)
Temporarily out of stock
Better World
ABB, XT2L MCCB 3P 160A, Fixed Mount
  • RS Stock No. 236-6488
  • Mfr. Part No. 1SDA067933R1 XT2L 160 Ekip LSIG 160A FF
Each
PHP133,182.69(exc. VAT)
In 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, ComPacT MCCB 1P 16A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 341-502
  • Mfr. Part No. C10F1TM016
Each
PHP34,271.38(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 Rotary Handle for use with iC60 MCB, iDPN Vigi, ilD MCB, iSW-NA
  • RS Stock No. 791-3023
  • Mfr. Part No. A9A27005
Each
PHP6,032.44(exc. VAT)
Temporarily out of stock
Schneider Electric, PowerPact MCCB 3P 60A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 428-696
  • Mfr. Part No. NHJL36060U31X
Each
PHP202,088.09(exc. VAT)
Temporarily out of stock
Eaton 315A British Standard Fuse, B3, 415V ac, 110mm
  • RS Stock No. 139-990
  • Mfr. Part No. ED315
Each
PHP2,308.29(exc. VAT)
In Stock
ABB F200 RCCB, 25A, 2 Pole, 300mA, Type AC
  • RS Stock No. 537-7383
  • Mfr. Part No. 2CSF202001R3250 F202 AC-25/0,3
Each
PHP9,107.08(exc. VAT)
Temporarily out of stock
Schneider Electric Acti9 1 Phase Distribution Board Enclosure, 85 Way
  • RS Stock No. 339-347
  • Mfr. Part No. SEA9BN24SXS
Each
PHP83,023.97(exc. VAT)
In Stock
RS PRO 15A Blue Blade Car Fuse, 32V dc
  • RS Stock No. 563-570
Each (In a Pack of 10)
PHP44.476(exc. VAT)
In Stock
ABB RCBO, 20A Current Rating, 1P+N Poles, 30mA Trip Sensitivity, Type C
  • RS Stock No. 183-3702
  • Mfr. Part No. 2CSR245041R1204
Each
PHP8,379.38(exc. VAT)
Temporarily out of stock
Better World
Siemens RCBO, 16A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 225-8738
  • Mfr. Part No. 5SU1324-6FA16
Each
PHP13,208.69(exc. VAT)
Temporarily out of stock
Littelfuse SMD Non Resettable Fuse 5A, 32V
  • RS Stock No. 820-7120
  • Mfr. Part No. 0438005.WR
Each (In a Pack of 100)
PHP55.698(exc. VAT)
Temporarily out of stock
Schneider Electric Distributed Neutral, SEA9N Series
  • RS Stock No. 207-269
  • Mfr. Part No. SEA9NKIT
Each
PHP4,374.17(exc. VAT)
In Stock
Schneider Electric A9R1 RCCB, 100A, 4 Pole, 300mA, Type AC, 415V ac
  • RS Stock No. 276-9127
  • Mfr. Part No. A9R14491
Each
PHP44,534.63(exc. VAT)
Temporarily out of stock
Hager BF RCD, 40A, 2 Pole, 300mA, Type AC
  • RS Stock No. 144-4864
  • Mfr. Part No. BF241
Each
PHP21,786.19(exc. VAT)
Temporarily out of stock
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 320A, Breaking Capacity 70 kA, Fixed Mount
  • RS Stock No. 231-470
  • Mfr. Part No. 109673 NZMH3-A320
Each
PHP177,485.69(exc. VAT)
In Stock
Better World
Schneider Electric Acti 9 iC60N MCB, 2P, 4A Curve B, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 776-3382
  • Mfr. Part No. A9F73204
Each
PHP10,845.41(exc. VAT)
Currently unavailable
Phoenix Contact Surge Protector, 40kA, 385V ac, DIN Rail Mount
  • RS Stock No. 509-828
  • Mfr. Part No. 1199369
Each
PHP14,137.05(exc. VAT)
Temporarily out of stock
Siemens SENTRON Busbar, 690V
  • RS Stock No. 266-583
  • Mfr. Part No. 8US1211-1NS10
Each
PHP6,043.11(exc. VAT)
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