Product features:Fail-safe door opener Ideal for. for escape doors Unlocking of the latch when the power supply is switched off Locking of the latch when the power supply is switched on Can be used on the right and left Perforated strike plateTechnical data:24 V= (0.11A) Box 29 (depth) x 99 x 20 mm Strike plate 250 x 25 x 3 mm Latch length 47 mm Up to 1,000 kg pressure forceInstallation information:Note: