LCN 4040SE-STD 24V 689 Sentronic Holder/Closer AL

LCN 4040SE-STD 24V 689 Sentronic Holder/Closer AL delivers exceptional performance and reliability as a Grade 1 surface door closer. Designed for commercial applications, this heavy-duty unit features a slide track arm with a standard hold-open mechanism, allowing doors to remain open until a current interruption releases the hold. With a generous 110-degree hold-open angle, it’s perfect for fire and smoke barrier doors, ensuring safety without compromising accessibility. The 4040SE is non-handed and non-sized, easily compatible with interior doors up to 4'0". Its adjustable hold-open force makes it versatile for various environments. Mounting options are flexible, allowing for installation on either the push or pull side of the door. Additionally, the closer functions as a full rack and pinion closer when the hold-open feature is not engaged, providing robust control. Featuring a plastic cover with a matte silver finish (689/US28), this unit not only performs well but also enhances the aesthetic of your space. It includes a momentary on/off switch board assembly for testing and over-voltage protection, ensuring durability and safety. With a two-year limited warranty and UL 10C listing, the LCN 4040SE is a reliable choice for your door hardware needs.

Sentronic Holder/Closer AL

Grade 1 Surface Door Closer, Slide Track Arm Standard with Hold Open, 110 Deg. Hold, Plastic Cover, 24V, Aluminum Painted Finish, Non-Handed

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.

Heavy duty, non-handed and non-sized, designed to provide a 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.

• Standard 4040SE series closer shipped with a standard arm, 24V or 120V (please specify) SE track, standard cover, and wood and machine screw pack. SEL tracks are optional.
• Non-sized cylinders for interior doors to 4'0".
• Hold-open force is adjustable.
• Momentary on/off switch board assembly for testing door release also provides over-voltage protection. Field replaceable.
• Functions as a full rack and pinion closer when hold-open is not engaged or current is interrupted.
• Closer mounts on either push or pull side of the door.
• Non-handed for mounting on either right or left hand door.
• Concealed or surface wiring.
• Interfaces with alarm systems. Consult factory for full details.
• Standard or optional custom powder coated finishes on cover and arm.
• Optional plated finishes

Resources

• 4040SE Series Fire/Life Safety Closers/Holders Cut Sheet
• LCN 4040-SE Installation Guide
• LCN 4040-SEL Installation Guide
• LCN 4040SE Double Egress Installation Guide
• LCN 4040SE Series Sell Sheet
• LCN Closers & Auto Operators Installation Guide
• LCN Electrified Door Control Product Guide
• LCN Fire/Life Safety Closers/Holders Series Product Guide 1
• LCN Fire/Life Safety Closers/Holders Series Product Guide 2
• LCN Low Energy Automatic Operators Brochure
• LCN SEH Sentronic Electric Door Holder Installation Guide
• Von Duprin Finishes Chart