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

33502 Products showing for Fuses & Circuit Breakers

1655 of 999+
Temporarily out of stock
ABB Tmax XT Trip Unit for use with Tmax XT
  • RS Stock No. 236-7221
  • Mfr. Part No. 1SDA067255R1 TMA 100-1000 XT2 4p
Each
PHP20,157.47(exc. VAT)
Temporarily out of stock
Better World
ABB, XT4S MCCB 4P 250A, Fixed Mount
  • RS Stock No. 236-6777
  • Mfr. Part No. 1SDA068500R1 XT4S 250 Ekip I 250A FF
Each
PHP91,442.61(exc. VAT)
Temporarily out of stock
Schneider Electric, ComPacT MCCB 3P 160A, Fixed Mount
  • RS Stock No. 260-7682
  • Mfr. Part No. C12E3TM160B
Each
PHP44,147.62(exc. VAT)
Temporarily out of stock
Siemens Adapter for use with Circuit Breaker
  • RS Stock No. 156-927
  • Mfr. Part No. 3RA2942-1A
Each (In a Pack of 5)
PHP1,764.868(exc. VAT)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-697
  • Mfr. Part No. 3VA6140-7JQ41-2AA0
Each
PHP197,939.43(exc. VAT)
Temporarily out of stock
Eaton Distribution Parts Neutral Phase Busbar Connector
  • RS Stock No. 256-037
  • Mfr. Part No. 263949 ZV-N-05TE-100
1 Pack of 100
PHP2,526.25(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1.6kA , DIN Rail
  • RS Stock No. 132-830
  • Mfr. Part No. 183590 IZMX40B3-P16W-1
Each
PHP1,067,100.11(exc. VAT)
Temporarily out of stock
ABB Tmax XT Conversion Kit for use with Circuit Breaker
  • RS Stock No. 232-0166
  • Mfr. Part No. 1SDA066279R1 P MP XT2 4P
Each
PHP6,240.49(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 4P 200A, Breaking Capacity 7 kA, Fixed Mount
  • RS Stock No. 147-286
  • Mfr. Part No. 3VA5220-5EC41-2AA0
Each
PHP132,613.73(exc. VAT)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 4P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-527
  • Mfr. Part No. 3VA6140-8HL41-0AA0
Each
PHP107,767.02(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB 3P 125A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 147-957
  • Mfr. Part No. 3VA5212-6EC31-2AA0
Each
PHP117,114.88(exc. VAT)
Temporarily out of stock
ABB, Tmax XT MCCB 4P 3.2A, Fixed Mount
  • RS Stock No. 236-7362
  • Mfr. Part No. 1SDA067564R1 XT2S 160 TMD 3.2A FF
Each
PHP31,091.51(exc. VAT)
Temporarily out of stock
Eaton xE?ect - FRCmM-NA RCCB, 40A, 2 Pole, 300mA, 110/190V
  • RS Stock No. 121-167
  • Mfr. Part No. 167697 FRCMM-40/2/03-G/A-NA-110
Each
PHP15,714.02(exc. VAT)
Temporarily out of stock
Schneider Electric CompacT Cover Frame for use with ComPacT NS630b
  • RS Stock No. 654-976
  • Mfr. Part No. C080N3WM
Each
PHP141,997.75(exc. VAT)
Temporarily out of stock
Eaton IZMX/INX Electronic Circuit Breaker 1kA IZMX/INX, 3 channels , Withdrawable
  • RS Stock No. 132-641
  • Mfr. Part No. 183604 IZMX40H3-P10W-1
Each
PHP902,012.38(exc. VAT)
In Stock
Littelfuse 250A Pink BF2 Car Fuse, 32V dc
  • RS Stock No. 431-6854
  • Mfr. Part No. 153.5395.6251
Each (In a Pack of 5)
PHP539.352(exc. VAT)
In Stock
Lovato P1RA RCCB, 63A, 4 Pole, 30mA, Type A, 230 V ac, 400 V ac
  • RS Stock No. 188-1683
  • Mfr. Part No. P1RA4P63A030
Each
PHP18,219.86(exc. VAT)
Temporarily out of stock
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 45A, Breaking Capacity 7 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-646
  • Mfr. Part No. 3VA5145-5ED41-0AA0
Each
PHP33,978.50(exc. VAT)
Temporarily out of stock
ABB F200 RCCB, 40A, 4 Pole, 500mA, 400V ac
  • RS Stock No. 176-9623
  • Mfr. Part No. F204BS-40/0.5
Each
PHP88,328.18(exc. VAT)
Temporarily out of stock
Better World
Siemens, Sentron MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 2.5 kA
  • RS Stock No. 245-769
  • Mfr. Part No. 3VA6140-7JT31-2AA0
Each
PHP176,679.27(exc. VAT)
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