Lockwood Electromech Hold-Open Concealed Door Closer

Electromechanical Hold-Open Device for Single Doors FD480 The FD480 is suitable for applications where fire doors are constantly kept open. Applications for the FD480 include hotels, office buildings and fire doors where hold open function is needed. The maximum door width is 1400 mm. Fire door is held open by the FD480 at the selected angle. When power is switched off, e.g. when smoke detectors react to smoke, the door closes. The hold open angle for the door can be adjusted from 70° to 120°. Hold-open device has adjustable hold-open function. Current consumption 60 mA (24 VDC). Features: Design - Compact modern design to suit both single and double door installations. Fire Rated - Successfully fire tested up to 2 hours on fire door assemblies in accordance with Australian Standard AS1905.1:2005 - Part 1: Fire Resistant Door sets. Flexibility In Installation - One unit suits both push side or pull side Easy to install with adjustable angles (70° to 120°) Hold-open strength can be adjusted during the installation Opening Angles Maximum opening angle 120°