LCN 4311HSA-POWDER Sentronic Heavy Duty Fire/Life Safety Door Closer/Holder with Intelligent Hold-Open Technology

LCN 4311HSA Sentronic Heavy Duty Fire/Life Safety Door Closer/Holder with Intelligent Hold-Open Technology

Professional Fire/Life Safety Door Control Solution

The LCN 4311HSA Sentronic combines heavy-duty door closing with intelligent hold-open functionality for high-traffic commercial applications. This surface-mounted closer/holder features built-in scanner technology that automatically holds doors open at 80° or more when pedestrians pass through, then releases after an adjustable timer period up to 30 seconds. Constructed with heavy-duty cast iron and full-complement bearings, this unit operates on 24VAC/DC power and meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards.

Professional Features & Benefits

• Intelligent Hold-Open Operation: Built-in HSA scanner automatically detects pedestrian traffic and holds door open at 80° to minimize hardware wear in high-traffic applications.
• Heavy-Duty Construction: Cast iron closer body with full-complement bearings provides exceptional durability for demanding commercial environments rated for high-traffic use.
• Flexible Power Operation: Standard 24VAC/DC operation provides reliable electronic control for automated hold-open functionality.
• Fire/Life Safety Compliance: Meets ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards for integration with existing fire and life safety systems.
• Adjustable Timer Control: Hold-open period adjustable up to 30 seconds with built-in On/Off switch for operational flexibility.
• All-Weather Performance: All-weather fluid ensures reliable operation across temperature variations and environmental conditions.
• Versatile Door Compatibility: Adjustable spring power sizes 1-6 accommodate interior doors up to 4" x 6" for versatile installation options.
• Manufacturer Warranty: 2 Year warranty coverage provides added confidence and protection for commercial installations.

Technical Specifications

• ADA Compliant: Yes
• BAA Qualified: Yes
• Closer Size: 3
• Commercial/Residential: Commercial
• Department: Door Hardware
• Door Type: Interior Door
• Electronic: Yes
• Fasteners: Wood and Machine Screws
• Finish Type: Powder Coat
• Fluid Type: All-Weather
• Mounting Detail: Surface - Hinge (Pull Side)
• Mounting Location: Pull Side
• Mounting Method: Surface Mount
• Product Category: Door Controls
• Product Group: Door Controls
• Product Model: 4311HSA
• Product Subgroup: Door Closers - Electromechanical (Fire and Life Safety)
• Product Substrate: Iron
• Product Type: Door Closers
• Product Voltage: 24VAC/DC
• Series: 4310HSA Series
• Subcategory: Fire and Life Safety Closers
• Warranty: 2 Year

Professional Applications

• Commercial Office Buildings
• Educational Facilities
• Healthcare Institutions
• Retail Establishments
• Industrial and Warehouse Facilities
• Multi-Tenant Residential Properties
• Government and Municipal Buildings

Why Choose LCN Quality?

LCN Sentronic closer/holder products deliver professional-grade reliability with heavy-duty cast iron construction and full-complement bearings designed for high-traffic commercial applications. Meeting ANSI/BHMA A156.15 and NFPA 101 Life Safety Code standards with 2 Year warranty coverage, these units integrate seamlessly with fire and life safety systems. Engineered for demanding commercial environments where dependable door control and pedestrian safety are essential.