LCN SEH Series

The SEH Sentronic® is a holder designed to provide single point hold-open for fire and smoke barrier doors, that must be used with a opposite side mounted UL listed door closer. The door is held open until current interruption releases the holding mechanism and the door closes. Single lever (track) arm is specifically designed for interior doors. Choice of finishes, track functions, and installation accessories meet virtually all life safety requirements.

UL listed for smoke barrier or labeled fire doors, cUL listed for self-closing doors without hold-open, tested and certified under ANSI Standard A156.15 and conforms to life safety code NFPA 101.

Specifications
Finishes
Options
Downloads

Specifications

Sentronic Closers/Holders

Automatic detection and containment of fire and smoke are the best ways to minimize danger to life and property. Patented Sentronic door closer/holders are designed to hold swinging doors open in normal use and release and automatically close the doors under fire conditions. Conforms to major building codes, life safety codes (eg. NFPA 101) and ANSI A156.15.

Single Point Hold-Open (SE)

SE Series offers adjustable single point hold-open function controlled by solenoid assembly located in the SE track.

Applications

For fire and smoke barrier doors
Integrated into larger system
Surface and concealed mountings
Remote control hold-open function of executive and conference area doors
Adapter plates and other installation accessories available for unusual conditions

Features Common to Fire/Life Safety Closers

24V AC/DC or 120V AC input
When current is interrupted, hold-open releases and door closes
Adjustable hydraulic backcheck cushions opening swing prior to 90 degrees
Separate regulation of general closing speed and latching speed
Available in wide range of powder coated finishes to blend with door and frame. SEM 190 available in aluminum and dark bronze only.
Circuit automatically handles AC or DC input
Can be pushed safely and easily out of hold-open
Functions as a full rack and pinion door closer when hold-open is not engaged or current is interrupted
Works with ionization, photoelectric and heat sensing detectors (by others)

Materials

High strength cast iron cylinder
Forged steel main arm
One piece forged steel piston
All weather fluid eliminates seasonal adjustments
High efficiency, full complement, low friction bearings
Tamper resistant regularing screws
Quiet, low friction track and roller combination for all single lever arm closers

SEH Holder Arms

Standard (Single) 100° Holder Arm, SEH-3077T: Non-handed arm can be combined with any 4040SE series track to provide an electrically controlled hold-open function on either side of the door. All SEH type holders require a separate closer for fire or smoke barrier door applications.

Installation Accessories

Conduit Quick-Connector, SEH-81: Two piece connector for use with 1/2" conduit.

Track roller, SEH-3034: Quiet, low friction roller assembly. Shoulder dimension "X" = 1/4" (6mm).

Track Slider, SEH-168: Alloy metal slider for use in SE series tracks only.

Transformer, 4040SE-3210: Reduces line voltage from 120V to 24V AC. Mounted on plate for 4" (102mm) x 4" x 2-1/8" (54mm) junction box (by others).