LCN 4040SE-120V-689 Heavy Duty Sentronic Door Closer

For commercial and institutional sites that require secure, reliable door operation, the LCN 4040SE-120V-689 Heavy Duty Sentronic Door Closer provides dependable performance and seamless integration with access control. This LCN door closer combines heavy-duty mechanical design with Sentronic electromechanical control to deliver precise, consistent closing on high-traffic entrances. The unit’s 120V input supports electrified applications—making it simple to tie into building security, monitoring and alarm systems—while field-adjustable settings let installers fine-tune closing speed and latching for ADA and code compliance. Built for long service life, the 4040SE-120V-689 reduces maintenance costs and helps prevent propped or uncontrolled doors that can compromise surveillance and security strategies. Ideal for schools, hospitals, office buildings and other facilities that demand robust access control hardware. Specify the LCN 4040SE-120V-689 for projects that need durable, integratable door control—contact your supplier to order or to discuss installation and security system integration.

• Delivers consistent, controlled door closing for improved security and reduced wear on high-traffic commercial doors
• Sentronic electromechanical control ensures precise operation and easy field adjustment for optimal performance
• 120V electrified input simplifies integration with access control, building automation and alarm systems
• Heavy-duty construction minimizes maintenance and downtime in institutional and commercial environments
• Streamlines code compliance and user safety with reliable closing force and adjustable settings