Cover Length: 280 mm Cover Height: 76 mm Cover depth: 49 mm features: Electromagnetic hold open door closer Matching body and arm finish Closing force to EN 1154 power 3 Maximum door width 950 mm Maximum door weight 60 kg Power 4 and 5 closers avaialable to order When a power supply of 24v DC is connected to the door closer and the door is opened beyond 75 degrees, up to it\'s maximum, the Hold Open mechanism will be engaged and hold the door open In the event of the electric supply being interrupted whether manually or alarm activated, the door will close from any position Included in Fire Tests in accordance with BS 476 Part 22 (1987) and independently assessed for 2 Hour cover by International Fire Consultants Ltd (Assessment No 93086) Manufacturered EN ISO 9002