4410ME heavy duty, electrically controlled closer/holderDesigned to provide infinitely adjustable hold-open for fire and smoke barrier doorsDoor is held open until current interruption releases mechanism and the door closesDouble lever arm closer is specifically designed for interior doorsChoice of finishes, cylinder functions, and installation accessories meet virtually all life safety requirements- Certifications:
- Grade 1 - ANSI A156.15
- UL 10C, 100 Hour Salt Spray
- Meets BAA - Buy American Act
- NFPA 101
- Body construction:
- Cast Iron Body
- Full complement bearing
- 1-1/2? diameter piston
- 11/16? Diameter Double Heat Treated Pinion Journal