Phase selector PF-441 (1ph ATS for working with gen. set; gen. start control; low and high voltage threshold control; adjustable low threshold off delay; 3 modes; DIN-rail 35mm mounting 2x230+N 3x16A 3NO IP20) F&F EA04.005.002 Euroautomatika F&F

Phase selector series "PF" DIN-rail mounting. For voltage monitoring in a single-phase power network and switching consumers to a backup input from a generator when the network voltage goes beyond set limits. If the network voltage is within permissible limits, the load is connected to the network through closed contacts 2-7. When the voltage goes beyond the set limits, contacts 2-7 open and the load is disconnected. After 15 seconds, contacts 11-12 close and a signal is sent to start the generator. After it reaches operating mode (generator voltage is stable and within permissible limits), contacts 3-9 close and the load is connected to the generator. When the network voltage is restored, after 10 seconds contacts 3-9 open, and after 0.3 seconds contacts 2-7 close and the load is connected to the power network. Features: load protection against under-voltage and over-voltage; load connection monitoring, protection against "back" voltage; generation start signal formation; generator start monitoring; emergency load disconnection by external signal; operation from an external battery and maintaining its charge; power supply voltage 3x230+N V AC; Switching threshold: -lower - 150...210 V -upper - 270 V maximum switching current 16 A.