Fine built-in magnet 180 kg 12/24 V DC + signal. Holding force: 180 kg. High corrosion resistance. Recessed. Signal: door position contact. Recommended for indoor use. Dimensions magnet (L x W x H): 167 x 34 x 21 mm. Dimensions anchor plate (L x W x H): 130 x 32 x 9 mm. Silent operation. Power supply: 12 V DC. Consumption: 500 mA. Holding force: 180 kg. High corrosion resistance. Recessed. Signal: door position contact. Recommended for indoor use. Supplied with anchor plate. No mechanical wear. Simple installation. Positive safety: immediately opens the door in case of voltage drop. No residual magnetism. Built-in varistor: protection against self-effect.