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

LCN 4040SE-DE 24V RH 689 Sentronic Holder/Closer AL is a Grade 1 Surface Door Closer designed for demanding commercial environments. This heavy-duty, non-handed closer features a slide track arm with double egress functionality and a 95-degree hold-open capability, making it ideal for fire and smoke barrier doors. The door remains open until current interruption occurs, effectively releasing the holding mechanism and allowing the door to close securely. Constructed with a durable aluminum painted finish, this closer combines aesthetic appeal with robust functionality. Its non-sized cylinders accommodate interior doors up to 4'0" and feature an adjustable hold-open force. The momentary on/off switch board assembly simplifies testing and includes over-voltage protection for added safety. Installation is versatile, as it can be mounted on either the push or pull side of the door and is compatible with concealed or surface wiring. This model also interfaces seamlessly with alarm systems. The Sentronic holder/closer is proudly made in the USA and carries a two-year limited warranty, ensuring reliable performance for years to come. With its high-quality construction and practical features, the LCN 4040SE is a smart choice for professional installations where safety and accessibility are paramount.

Sentronic Holder/Closer AL

Grade 1 Surface Door Closer, Slide Track Arm Double Egress with Hold, 95 Deg. Hold, Plastic Cover, 24V, Aluminum Painted Finish, Right-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