Magnet dimensions (L x W x H): 273 x 67 x 41 mm. Dimensions of anchor plate (L x W x H): 185 x 60 x 12 mm. Silent operation. Power supply: 12/24 V DC. Consumption: 12 V DC = 550 mA; 24 V DC = 275 mA. Surface mounted. Illuminated + Relay. High corrosion resistance. Safety cables included. Including anchor plate. No mechanical wear. Easy installation. Recommended for indoor use. Positive safety: immediately opens the door in case of voltage drop. Holding force: 500 kg. Illuminated. No residual magnetism. Built-in varistor (protection against self-effect).