Description
The LCN 3133SE-STD is a concealed in-door closer and holder engineered for fire and smoke barrier doors. It provides single-point hold-open functionality, releasing automatically when power is interrupted to close the door safely. Ideal for facilities requiring code-compliant fire-rated door control on interior applications.
This right-hand unit operates on 24V power and installs within the door frame for a clean appearance. Verify compatibility with your door size and frame type before ordering. As an authorized LCN dealer, E.D. Locks provides expert guidance on sizing, installation, and maintenance. Contact our team at sales@edlocks.com or 1-877-207-6067 for free technical support.
