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Search results with tag "Nema 7 9"
NEMA 7/9 - Overhead Door
www.overheaddoor.comof door for appropriate operator torque and door travel speed selection. 5-Door activation needs/requirements. Examples include 3 button control stations, 1 button control stations, pull cords, key switches. 7-Interlock switches are required under certain conditions for doors with pass doors and door locks.