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

33483 Products showing for Fuses & Circuit Breakers

7 of 999+
Siemens, SENTRON MCCB 3P 175A, Breaking Capacity 35 kA, Fixed Mount
  • RS Stock No. 148-018
  • Mfr. Part No. 3VA5217-7ED31-1AA0
Each
PHP115,478.31(exc. VAT)
ABB S802 Circuit Breaker, 2P, 10A Curve C, 690V AC, 250V DC, 4.5 kA Breaking Capacity
  • RS Stock No. 287-6377
  • Mfr. Part No. 2CCS892001R0104
Each
PHP10,360.12(exc. VAT)
Mersen 5A F GMG Cartridge Fuse, 10 x 38mm
  • RS Stock No. 914-4351
  • Mfr. Part No. ATM5
Each
PHP1,077.07(exc. VAT)
Better World
Schneider Electric EZ9 RCCB, 63A, 2 Pole, 30mA, Type AC, 230V ac
  • RS Stock No. 850-8583
  • Mfr. Part No. EZ9R33263
Each
PHP1,445.22(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 800A, Breaking Capacity 50 kA, Fixed Mount
  • RS Stock No. 655-144
  • Mfr. Part No. C080N320FM
Each
PHP239,493.92(exc. VAT)
Schneider Electric, EasyPact MCCB 3P 80A, Breaking Capacity 10 kA, Fixed Mount
  • RS Stock No. 269-6109
  • Mfr. Part No. EZC100H3080
Each
PHP20,409.71(exc. VAT)
Schneider Electric, ComPacT MCCB 3P 200A, Fixed Mount
  • RS Stock No. 260-8049
  • Mfr. Part No. C25W3TM200
Each
PHP203,237.55(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 1.1kA, Breaking Capacity 34 kA, Fixed Mount
  • RS Stock No. 127-175
  • Mfr. Part No. 179592 N4-4-1100-S15-PV-NA
Each
PHP618,326.27(exc. VAT)
Eaton Eaton Metering Board ZSD Meter Cabinet for use with Metering Board
  • RS Stock No. 243-005
  • Mfr. Part No. 191008 ZSD-ZV-1100/APZ/A
Each
PHP131,666.38(exc. VAT)
Mersen 32A Rail Mount Fuse Holder for 10 x 38mm Fuse, 1P, 500V ac
  • RS Stock No. 287-5799
  • Mfr. Part No. N218213
Each
PHP517.86(exc. VAT)
ABB S302 MCB, 2P, 20A Curve C, 415V AC, 125V DC, 100 kA Breaking Capacity
  • RS Stock No. 200-911
  • Mfr. Part No. 2CDS382001R0204
Each
PHP15,586.01(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)
Better World
Schneider Electric Acti 9 3 Phase Distribution Board, 18 Way, 250 A
  • RS Stock No. 125-1414
  • Mfr. Part No. SEA9BN18PEV
Each
PHP35,861.72(exc. VAT)
Siemens 400V ac Push Button
  • RS Stock No. 231-8414
  • Mfr. Part No. 5TE4811-2
Each
PHP4,947.16(exc. VAT)
Schneider Electric K Residual Current Circuit Breaker, 40A, 2P Pole, 300mA, Type AC, 220 → 240V ac
  • RS Stock No. 588-941
  • Mfr. Part No. A9KR16240
Each
PHP2,019.43(exc. VAT)
ABB 2CCS MCB, 2P, 125A, 50 KA Breaking Capacity
  • RS Stock No. 140-725
  • Mfr. Part No. 2CCS862001R1647
Each
PHP26,327.59(exc. VAT)
Siemens SENTRON 5SY8 MCB, 2P, 10A Curve D, 230V AC, 60V DC, 40 kA Breaking Capacity
  • RS Stock No. 610-276
  • Mfr. Part No. 5SY8510-8
Each
PHP7,410.74(exc. VAT)
Schneider Electric, PowerPact MCCB 3P 30A, Breaking Capacity 18 kA, DIN Rail Mount
  • RS Stock No. 341-439
  • Mfr. Part No. NHJL36030
Each
PHP124,326.49(exc. VAT)
ABB, SACE Tmax XT MCCB Molded Case Circuit Breaker 4P 160A, Fixed Mount
  • RS Stock No. 232-0258
  • Mfr. Part No. 1SDA067428R1 XT1N 160 TMD 160A FF
Each
PHP50,792.88(exc. VAT)
Schneider Electric Acti9 K60H MCB Mini Circuit Breaker, 3P, 32A Curve C, 400V AC, 10000 A Breaking Capacity
  • RS Stock No. 588-924
  • Mfr. Part No. A9K12332
Each
PHP2,066.70(exc. VAT)
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