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

151 of 999+
Siemens SENTRON 5SJ4315 MCB, 3P, 2A Curve D, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-943
  • Mfr. Part No. 5SJ4315-8HG42
Each
PHP23,350.95(exc. VAT)
Omron Busbar
  • RS Stock No. 111-3539
  • Mfr. Part No. PYDN-7.75-040Y
Each
PHP135.41(exc. VAT)
Eaton MCB, 2P, 8A Curve C, 400V AC, 10 kA Breaking Capacity
  • RS Stock No. 240-544
  • Mfr. Part No. 101297 PLI-C8/2
Each
PHP7,287.10(exc. VAT)
Better World
Siemens RCBO, 8A Current Rating, 2P Poles, 30mA Trip Sensitivity, Sentron Range
  • RS Stock No. 150-4184
  • Mfr. Part No. 5SU1354-7KK08
Each
PHP10,527.15(exc. VAT)
Siemens SENTRON 5SY8 MCB, 2P, 8A Curve D, 230V AC, 60V DC, 40 kA Breaking Capacity
  • RS Stock No. 610-362
  • Mfr. Part No. 5SY8508-8
Each
PHP8,364.60(exc. VAT)
Better World
Siemens 5SV3 RCCB, 25A, 4 Pole, 300mA, 400V ac
  • RS Stock No. 209-6577
  • Mfr. Part No. 5SV3642-4KK14
Each
PHP51,827.91(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 25A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9862
  • Mfr. Part No. 3VA1125-5ED36-0AA0
Each
PHP25,616.30(exc. VAT)
Eaton RCBO, 25A Current Rating, 2P Poles, 30mA Trip Sensitivity, Type A, Type C, FRBmM Range
  • RS Stock No. 123-666
  • Mfr. Part No. 170800 FRBMM-C25/2/003-LIA
Each
PHP12,351.43(exc. VAT)
Eaton Eaton xEffect Busbar, 1000 V ac/dc, 1500 V ac/dc
  • RS Stock No. 230-825
  • Mfr. Part No. 119032 CU-BAND5X24X1-BK
1 Pack of 5
PHP55,248.63(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 100A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 270-3954
  • Mfr. Part No. 3VA2110-6HM36-0AA0
Each
PHP89,700.38(exc. VAT)
Schneider Electric, Compact MCCB 3P 1.6kA, Fixed Mount
  • RS Stock No. 247-1817
  • Mfr. Part No. 33483
Each
PHP520,011.60(exc. VAT)
Littelfuse 4A Pink Blade Car Fuse, 32V dc
  • RS Stock No. 787-4158
  • Mfr. Part No. 0287004.PXCN
Each (In a Pack of 10)
PHP17.226(exc. VAT)
ABB RCBO, 32A Current Rating, 3P Poles, Type B
  • RS Stock No. 237-5069
  • Mfr. Part No. 2CSR253001R1325
Each
PHP22,667.40(exc. VAT)
Siemens, SENTRON MCCB 3P 110A, Breaking Capacity 10 kA, Cable Mount, Panel Mount
  • RS Stock No. 148-179
  • Mfr. Part No. 3VA5111-1MH31-0AA0
Each
PHP48,744.26(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)
Sensata Airpax Airpax Thermal Circuit Breaker - IEG6 Single Pole Panel Mount, 30A Current Rating
  • RS Stock No. 275-0199
  • Mfr. Part No. IEG6-1-51-30.0-A-01-V
Each
PHP3,636.86(exc. VAT)
Siemens 100A Centred Tag Fuse, NH00, 690V ac
  • RS Stock No. 397-345
  • Mfr. Part No. 3NE1021-0
Each (In a Pack of 3)
PHP7,249.217(exc. VAT)
Schneider Electric, PowerPact MCCB 3P 60A, Breaking Capacity 14 kA, DIN Rail Mount
  • RS Stock No. 205-282
  • Mfr. Part No. NHDF36060U31XTW
Each
PHP155,851.67(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
Siemens, SENTRON MCCB 3P 600A, Breaking Capacity 100 kA, Fixed Mount
  • RS Stock No. 249-900
  • Mfr. Part No. 3VA6460-7KT31-0AA0
Each
PHP368,753.83(exc. VAT)
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