Door Closers

LCN 4040SE Stop and Side Mounted Door Closer with Electronic Release from the 4040 Series Stop and Side Mounted Door Closer with Electronic ReleaseFire/life safety closer/holders for fire and smoke-ba more→rrier doors. Designed to hold doors open in normal use but will release and automatically close doors under fire conditions. Heavy-duty cast iron cylinder for exceptional service life. UL-listed for use on fire-rated doors. 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 the door closes. Single-lever (track)