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

183 of 999+
Eaton IZMX/INX Electronic Circuit Breaker 2.5kA , Fixed
  • RS Stock No. 132-934
  • Mfr. Part No. 183899 IZMX40B4-V25F-1
Each
PHP1,441,976.23(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 10 kA, Plug In
  • RS Stock No. 230-415
  • Mfr. Part No. 119362 NZMH3-AE400-S1
Each
PHP260,913.49(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 20A, Breaking Capacity 18.5 kA, Fixed Mount
  • RS Stock No. 229-414
  • Mfr. Part No. 107612 NZMB2-AF20-BT-NA
Each
PHP40,980.79(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 2P 40A, Breaking Capacity 25 kA, DIN Rail Mount
  • RS Stock No. 271-9314
  • Mfr. Part No. 3VA1140-3GD42-0AA0
Each
PHP28,787.19(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 3P 100A, Breaking Capacity 150 kA, Fixed Mount
  • RS Stock No. 270-065
  • Mfr. Part No. 3VA6110-8HM31-2AA0
Each
PHP128,294.08(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 63A, Fixed Mount
  • RS Stock No. 236-7392
  • Mfr. Part No. 1SDA067621R1 XT2H 160 TMA 63A FF
Each
PHP37,483.40(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 1P 160A, Breaking Capacity 55 kA, DIN Rail Mount
  • RS Stock No. 271-9781
  • Mfr. Part No. 3VA1116-5ED16-0AA0
Each
PHP29,271.57(exc. VAT)
Siemens SENTRON 5SJ4211 MCB, 2P, 5A Curve C, 400V AC, 60V DC, 10 kA Breaking Capacity
  • RS Stock No. 299-861
  • Mfr. Part No. 5SJ4211-7HG42
Each
PHP11,803.05(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 25A, Breaking Capacity 16 kA, DIN Rail Mount
  • RS Stock No. 271-9572
  • Mfr. Part No. 3VA10252ED460AA0
Each
PHP26,762.85(exc. VAT)
Better World
Siemens, SENTRON MCCB Molded Case Circuit Breaker 4P 63A, Breaking Capacity 70 kA, DIN Rail Mount
  • RS Stock No. 271-9401
  • Mfr. Part No. 3VA1163-6ED46-0AA0
Each
PHP36,427.74(exc. VAT)
Better World
Siemens, 3VA2 MCCB 3P 63A, Breaking Capacity 85 kA, Fixed Mount
  • RS Stock No. 210-3344
  • Mfr. Part No. 3VA2163-6HL36-0AA0
Each
PHP52,830.42(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 63A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4732
  • Mfr. Part No. 3VA2163-7HK32-0AA0
Each
PHP53,375.60(exc. VAT)
Better World
Siemens, SENTRON MCCB 4P 25A, Breaking Capacity 110 kA, Fixed Mount
  • RS Stock No. 270-4562
  • Mfr. Part No. 3VA2125-7HN42-0AA0
Each
PHP76,042.86(exc. VAT)
Schneider Electric Horizontal Distribution Length, 3m, 40A, Canalis Series
  • RS Stock No. 214-786
  • Mfr. Part No. KNA40ED4301
Each
PHP15,326.01(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 3P 40A, Breaking Capacity 5 kA, Fixed Mount
  • RS Stock No. 229-990
  • Mfr. Part No. 107800 NZMH2-A40-BT-NA
Each
PHP51,244.32(exc. VAT)
Better World
Siemens, SENTRON MCCB 3P 400A, Breaking Capacity 55 kA, Fixed Mount
  • RS Stock No. 209-5211
  • Mfr. Part No. 3VA2340-5KP32-0AA0
Each
PHP152,722.80(exc. VAT)
Eaton, Eaton Moeller series NZM MCCB Molded Case Circuit Breaker 3P 400A, Breaking Capacity 5 kA, Plug In
  • RS Stock No. 231-161
  • Mfr. Part No. 113530 NZMN3-VE400-T-AVE
Each
PHP238,187.11(exc. VAT)
Littelfuse Fuse Holder Water Proof Holder
  • RS Stock No. 738-2784
  • Mfr. Part No. FHAC0001ZXJ
Each
PHP296.21(exc. VAT)
Eaton, Eaton Moeller NZM MCCB Molded Case Circuit Breaker 4P 400A, Breaking Capacity 5 kA, Withdrawable
  • RS Stock No. 249-019
  • Mfr. Part No. 191608 NZMN3-4-AX400-AVE
Each
PHP258,127.68(exc. VAT)
Better World
ABB, Tmax XT MCCB 4P 160A, Fixed Mount
  • RS Stock No. 236-6506
  • Mfr. Part No. 1SDA067964R1 XT2L 160 Ekip LSI 160A FF
Each
PHP132,216.54(exc. VAT)
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