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

24 of 999+
Better World
Siemens Surge Protector, 9.3kA, Surface Mount Mount
  • RS Stock No. 216-5998
  • Mfr. Part No. 3RT2916-1PA1
Each
PHP5,634.62(exc. VAT)
Schneider Electric Acti9 K60N MCB Mini Circuit Breaker, 2P, 32A Curve B, 400V AC, 6000 A Breaking Capacity
  • RS Stock No. 588-953
  • Mfr. Part No. A9K01232
Each
PHP932.38(exc. VAT)
ABB PS3 3 Phase Busbar, 400V
  • RS Stock No. 231-9645
  • Mfr. Part No. 2CDL230489R1606 PS3/6/16BP
1 Box of 1
PHP1,373.51(exc. VAT)
Eaton xEffect FAZ MCB, 2P, 6A Curve C, 415V AC, 60V DC, 15 kA Breaking Capacity
  • RS Stock No. 241-198
  • Mfr. Part No. 102204 FAZ-C6/2-RT
Each
PHP11,729.74(exc. VAT)
Schneider Electric Acti9 SE10 MCB Mini Circuit Breaker, 3P, 20A Curve C, 415V AC, 10000 A Breaking Capacity
  • RS Stock No. 336-610
  • Mfr. Part No. SE10C320
Each
PHP8,967.99(exc. VAT)
Mersen 1kA size 33 FF Square Body Fuse, aR, 700V
  • RS Stock No. 304-2243
  • Mfr. Part No. B300082
Each
PHP27,367.04(exc. VAT)
ABB S403M MCB, 3P, 50A Curve C, 440V AC, 12V DC, 15 kA Breaking Capacity
  • RS Stock No. 140-930
  • Mfr. Part No. 2CCS573001R0504
Each
PHP17,013.63(exc. VAT)
Eaton 100A Bolted Tag Fuse, FE, 690 V ac, 500V dc, 63.5mm
  • RS Stock No. 182-1567
  • Mfr. Part No. 100FE
Each
PHP1,960.20(exc. VAT)
Schneider Electric C120 A9N Circuit Breaker, 2P, 125A, Type AC, 415V AC, 250V DC, 10 kA Breaking Capacity
  • RS Stock No. 288-7118
  • Mfr. Part No. A9N18385
Each
PHP52,825.03(exc. VAT)
ETI 2A DI Diazed Fuse, E16 Thread Size, gG - gL, 500V ac
  • RS Stock No. 417-818
  • Mfr. Part No. 2311401
Each (In a Pack of 5)
PHP78.284(exc. VAT)
Siemens, SENTRON MCCB 2P 15A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 147-611
  • Mfr. Part No. 3VA5195-4ED21-0AA0
Each
PHP30,491.36(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 Compact Undervoltage Release for use with NS630b
  • RS Stock No. 354-356
  • Mfr. Part No. 33822
Each
PHP31,523.69(exc. VAT)
MECATRACTION Lightning Earth Clamp
  • RS Stock No. 200-6912
  • Mfr. Part No. C4-1BR1125
Each (In a Box of 4)
PHP631.168(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-137
  • Mfr. Part No. 113332 NZMH2-A100-SVE
Each
PHP59,601.76(exc. VAT)
Better World
Schneider Electric, ComPacT New Generation Circuit breaker 3P 250A, Breaking Capacity 36 kA, Fixed Mount
  • RS Stock No. 254-6357
  • Mfr. Part No. C25F3TM250
Each
PHP126,326.16(exc. VAT)
Eaton RCD, 10A, 2 Pole, 30mA, Type C, 230V
  • RS Stock No. 922-8715
  • Mfr. Part No. 236082 PKNM-10/1N/C/003-A-MW
Each
PHP9,697.86(exc. VAT)
Schneider Electric Multi9 M9F1 MCB, 2P, 1A Curve C, 440V AC, 125V DC, 6 kA Breaking Capacity
  • RS Stock No. 212-123
  • Mfr. Part No. M9F11201
Each
PHP11,112.02(exc. VAT)
Better World
Schneider Electric - Easy Series, EasyPact CVS Circuit breaker 3P 63A, Breaking Capacity 36kA, Fixed Mount
  • RS Stock No. 260-9733
  • Mfr. Part No. LV510335
Each
PHP22,981.63(exc. VAT)
Sensata Airpax Airpax Thermal Circuit Breaker - R11 Single Pole Panel Mount, 20A Current Rating
  • RS Stock No. 275-0455
  • Mfr. Part No. R11-2-20.0A-B06CV-V
Each
PHP1,631.62(exc. VAT)
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