Automatic phase changer with phase voltage output PF-452

The PF-452 automatic phase switch is used to maintain the continuity of power supply in a two-phase circuit in the event of a loss or drop in the parameters of one of the supply phases. Optionally, it can be used as a controller to power selected circuits when connected to one or two phases of a non-full-phase power supply.

Minimum adjustable time delay on power failure [s]	2
Maximum allowed time delay on power failure [s]	10< /td>