Product Overview
LCN 4642 Grade 1 Regular Arm Auto Equalizer Door Operator, Push Side Mounting, Electrohydraulic
The 4640 auto equalizer is LCN’s smart and reliable electrically powered low-energy automatic operator. It provides easy access for people with disabilities or the elderly. Designed primarily for manual opening applications that occasionally required automatic opening. They are backed by a 2-year limited warranty, are UL and cUL listed, meet ANSI/BHMA 156.19, meet the American Disabilities Act (ADA), and ANSI A117.1 requirements for accessibility.
- Non-sized cylinders for interior doors to 4’6” and exterior doors to 3’6”
- Non-handed design
- Meets ADA requirements (power mode)
Arm Options
- REG - 4640-3077 Regular Arm (REGARM)
- LONG - Long Arm (LONG), Includes long rod and shoe, 4640-79LR for deep reveals
CS Option
- CS - Provides concealed on/off power switch (optional 8310-806K key switch available when CS option is selected)

| Brand | |
|---|---|
| Finishes |
693 Black (Powder Coated), 689 Aluminum (Powder Coated), 691 Light Bronze (Powder Coated), 696 Brass (Powder Coated), 695 Dark Bronze (Powder Coated) |
| Usage |
Heavy Duty |
| Certifications |
Grade 1 - ANSI A117.1, A156.19, UL 10C, ADA, 100 Hour Salt Spray, Meets BAA - Buy American Act |
| Body Construction |
Cast Iron Body, Full Complement Bearing, 1-1/2" Diameter Piston, 3/4" Diameter Double Heat Treated Pinion Journal |
| Fluid |
All Weather Fluid |
| Handing |
Non-Handed |
| Spring Size |
Adjustable Spring Size 2-5 |
| Mounting |
Top jamb (Push Side) |
| Cover |
Metal |
| Fasteners |
Wood and Machine Screws |
| Warranty |
2 Years |
| Buy American Act Compliance |
Meets Buy American Act - Made in USA |