Automatic Transfer Switch, ZTG T-Series, 1600 A-3000 A, ZGAO160PB3M6XBXXXX ZTG OT 1600A3PH N3R SLD NEU General Purpose Commercial and Industrial Automatic Transfer Switch 1600 A, Open Transition, 3 Pole 440-480V 3 Ph System Voltage Solid Neutral Bar Nema 3R Enclosure Mechanical lugs 600 MCM (12) #2-600MCM Ground Bar No meter No Communications UL 1008 listed up To 480VAC at 50/60Hz Seismic certified To IEEE-693-2005 at HIGH level With 2.5 amplification factor Seismic certified To IBC-2015 at Ip=1.5 For z/h less than Or equal To 1 Microprocessor activated Maintained test switch Programmable exerciser daily, 7-14-28-365 days user- selectable, with or without load Event log of last 250 events LED for Source 1 & Source -2 - Position indication LED for Source 1 and Source 2 - Source availability indication Engine start timer -adjustable up to 60sec Phase rotation sensing of Source 1 & Source 2 Under/Over voltage sensing 3-phase Source 1 & Source 2 Adjustable over/under frequency sensor-Source 2-and Source 1 Frequency Indication - on the controller In Phase Monitor between Source 1 and Source 2 to allow transfer-with enable/disable Microprocessor activated Commit/no commit on transferring to Source 2-with enable/disable Adjustable time delay on transfer to Source 2 Adjustable time delay on retransfer to Source 1 Engine stop/cool adjustable cool down timer Voltage imbalance between phases-applies to 3-phase only Bypass transfer timer function-soft switch in controller Package B-Base 2 SPDT S1 position aux contacts 2 SPDT S2 position aux contacts 2 unassigned digital inputs 4 unassigned digital outputs