DORMA Group North America
ESA300T auto-telescopic door is designed for corridor applications and openings that require an extra-wide clear opening distance up to 20 feet. Header is 7-1/2 inches high and 6-5/8 inches deep to minimize projection from the doorjamb. A self-learning, self-monitoring microprocessor control monitors all critical door functions and safety sensors. Fully programmable door functions include opening and closing speed, check locations, and partial open dimensions. Sound-dampening gasket reduces vibrations and operating noise.