4040SE-STD 24V 693 LCN Door Closer Standard Arm Track Door Closer, 24V, Black

The 4040SE Sentronic is a heavy duty, non-handed, non-sized closer/holder designed to provide single point hold open for fire and smoke barrier doors. The door is held open until current interruption releases the holding mechanism and closes the door. The single lever track arm is designed for interior doors.