LCN 4311HSA-STD 24V RH 689 Sentronic Holder/Closer AL

LCN 4311HSA-STD 24V RH 689 Sentronic Holder/Closer AL is an advanced electric closer designed specifically for high-traffic environments, ensuring easy passage for groups of pedestrians. This standard arm track door closer features a right-hand installation and is made from durable aluminum, making it both robust and visually appealing. This model incorporates a built-in scanner that detects pedestrian movement, activating the hold-open feature when the door is opened to 80 degrees or more. This minimizes wear on the door hardware while maintaining a smooth flow of foot traffic. Once the last person has passed, a built-in timer automatically releases the hold-open, allowing the door to close securely. Conforming to NFPA 101 and ANSI 156.15 standards, the LCN 4311HSA offers versatile input options, accommodating both 24V AC/DC and 120V AC. Adjustable hydraulic backcheck and separate regulation of closing and latching speeds ensure a controlled and safe door operation. Its high-strength cast iron cylinder and forged steel components enhance durability, while all-weather fluid ensures reliable performance in any climate. Available in a variety of powder-coated finishes, this closer seamlessly integrates with your door and frame. With a limited 2-year warranty and a weight of 22 lbs, the LCN 4311HSA-STD is a reliable choice for commercial installations.

Sentronic Holder/Closer AL

Standard Arm Track Door Closer, Right Hand, Aluminum

The 4310HSA Sentronic is an electrically controlled closer/holder designed to provide easy passage for groups of pedestrians through high traffic doors. Pedestrians moving through the doorway trigger the built in scanner. When the door is opened to 80 Deg. or more, the door is electrically held open to minimize wear on the door hardware. After the last pedestrian in a group passes through the doorway, the system timer releases the hold open, closing the door. The single lever trach arm closer is designed for pull side mounting.

Designed to provide easy passage for groups of pedestrians through high traffic doors.

Pedestrians, moving through the doorway, trigger the built-in scanner. When the door is opened to 80° or more, the door is electrically held open to minimize wear and tear on applied door hardware.

• Conforms to NFPA 101 and ANSI 156.15
• 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°
• Separate regulation of general closing speed and latching speed
• Available in wide range of powder coated finishes to blend with door and frame (SEM magnets 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 full rack and pinion door closer when hold-open is not engaged or current is interrupted
• High strength cast iron cylinder
• Forged steel main arm and piston
• All weather fluid

Resources

• 4310HSA Series Fire/Life Safety Closers/Holders Cut Sheet
• LCN 4311 HSA Installation Instructions
• LCN Electrified Door Control Product Guide
• LCN Low Energy Automatic Operators Brochure
• Von Duprin Finishes Chart