Double magnet. Holding force: 2 x 500. Signal: door position contact. High corrosion resistance. Surface mount. Magnet dimensions (L x W x H): 532 x 66.5 x 42.5 mm. Dimensions anchor plate (L x W x H): 185 x 60 x 12 mm. Power supply: 12/24 V DC. Consumption: 12 V DC = 1.2A; 24 V DC = 620 mA. Double magnet. Holding force: 2 x 500 kg. Signal: door position contact. High corrosion resistance. Construction. Safety cables. Supplied with anchor plate. No mechanical wear. Easy installation. Recommended for indoor use. Positive safety: immediately opens the door in case of voltage drop. No residual magnetism. Built-in varistor (self-effect protection).