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Phase selector switch

Universal automatic electronic phase switch PEF-319

The PEF-319 universal automatic electronic phase switch is designed to supply an industrial and domestic single phase 230/240 V, 50 Hz load from three-phase four-wire mains 3х380+N in order to maintain uninterrupted power supply of essential single-phase loads and protect them against unallowable voltage variations in the mains.

The PEF-319 universal automatic electronic phase switch is designed to supply an industrial and domestic single phase 230/240 V, 50 Hz load from three-phase four-wire mains 3х380+N in order to maintain uninterrupted power supply of essential single-phase loads and protect them against unallowable voltage variations in the mains.

 

 

According to the voltage presence and voltage quality on the phases, the PEF-319 will automatically select the optimum phase in limits range set by user and switch the single phase load supply to this phase:

 

 

  • If power is less than 6,6 kW (30 A),the load is energized directly from the PEF-319;

 

  • if power is more than 6,6 kW (30 A),the PEF-319 controls the magnetic starters (MS) single phase coils of the corresponding power (MS are not included in supply complete package).

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