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

51 of 999+
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 1P, 32A Curve C, 230V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-874
  • Mfr. Part No. A9K02132
Each
PHP287.88(exc. VAT)
Better World
Schneider Electric Acti 9 iC60H MCB, 1P, 10A Curve C, 230V AC, 72V DC, 10 kA Breaking Capacity
  • RS Stock No. 776-2269
  • Mfr. Part No. A9F07110
Each
PHP2,452.30(exc. VAT)
Schneider Electric, ComPacT MCCB 4P 50A, Fixed Mount
  • RS Stock No. 260-7634
  • Mfr. Part No. C11H4TM050B
Each
PHP48,539.20(exc. VAT)
Littelfuse Non-Resettable Wire Ended Fuse 1A, 125V ac/dc
  • RS Stock No. 738-3043
  • Mfr. Part No. 0251001.MAT1L
Each (In a Pack of 10)
PHP37.125(exc. VAT)
Phoenix Contact 5A Brown Automotive Car Fuse, 32V No
  • RS Stock No. 253-7606
  • Mfr. Part No. 2908367
Each (In a Pack of 2)
PHP538.56(exc. VAT)
Siemens SENTRON Wire Connector for use with 3VA1 400/630 and 3VA2 100/160/250/400/630 circuit breakers
  • RS Stock No. 210-9408
  • Mfr. Part No. 3VA9487-0GA80
Each
PHP4,488.52(exc. VAT)
ABB RCBO, 50A Current Rating, 3P Poles, Type C
  • RS Stock No. 237-5071
  • Mfr. Part No. 2CSR253001R1504
Each
PHP28,153.69(exc. VAT)
Better World
Schneider Electric RCBO, 40A Current Rating, 1P+N Poles, Type AB, Easy9 Range
  • RS Stock No. 850-8662
  • Mfr. Part No. EZ9D16840
Each
PHP2,117.04(exc. VAT)
Eaton 500A Bolted Tag Fuse, C2, 400 V dc, 550V ac, 134mm
  • RS Stock No. 182-1554
  • Mfr. Part No. FF500
Each
PHP4,674.39(exc. VAT)
Better World
Schneider Electric, Masterpact MCCB 3P 3.2kA, Fixed Mount
  • RS Stock No. 248-3809
  • Mfr. Part No. LV848312
Each
PHP1,453,778.42(exc. VAT)
ABB, SACE FORMULA MCCB Molded Case Circuit Breaker 1P 100A, Fixed Mount
  • RS Stock No. 231-9294
  • Mfr. Part No. 1SDA074167R1 EKIP 2K-1 E1.2..E6.2-Tmax
Each
PHP8,848.23(exc. VAT)
Schneider Electric Acti9 A9N1 MCB, 1P, 100A Curve B, 230-400V AC, 144V DC, 4.5 kA Breaking Capacity
  • RS Stock No. 212-214
  • Mfr. Part No. A9N18403
Each
PHP8,972.49(exc. VAT)
Schneider Electric Acti9 iID RCCB, 80A, 2 Pole, 100mA, Type AC, 220 → 240V ac
  • RS Stock No. 130-500
  • Mfr. Part No. A9R12280
Each
PHP19,989.00(exc. VAT)
Littelfuse 80A Grey, White Fuse Strips Car Fuse, 80V dc
  • RS Stock No. 226-0872
  • Mfr. Part No. 157.5701.5801
Each
PHP509.60(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)
ABB 18 Way Plastic Consumer Unit, 125A, IP65 Mistral65
  • RS Stock No. 811-1896
  • Mfr. Part No. 1SL1203A00 65P18X12
Each
PHP3,462.57(exc. VAT)
ABB, Pro M MCCB 3P 125A, Breaking Capacity 6 kA, DIN Rail Mount
  • RS Stock No. 538-3849
  • Mfr. Part No. 2CDE283001R0125 E203/125R
Each
PHP8,168.75(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 3P 20A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 232-0213
  • Mfr. Part No. 1SDA066800R1 XT1B 160 TMD 20A FF
Each
PHP17,746.33(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 32A, Breaking Capacity 25 kA, Fixed Mount
  • RS Stock No. 874-4269
  • Mfr. Part No. 3VA1132-3EE36-0AA0
Each
PHP31,292.18(exc. VAT)
Better World
Schneider Electric Busbar Tap-Off Unit, Canalis KBC Series
  • RS Stock No. 219-8874
  • Mfr. Part No. KBC10DCB20
Each (In a Pack of 10)
PHP864.104(exc. VAT)
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