Designed for use with Adams Rite deadlatches or cylindrical locksets with 1/2" (12.7 mm) to 5/8" (15.9 mm) latchbolt projection. For use in aluminum, hollow metal, or wood applications. Open electrically under 25 lbs (11.3 kg) of preload. Preload is pressure exerted on doors by air conditioning systems, warping or misaligned hardware which can disable common electric strikes. This non-handed strike features an ultra-compact design and adjustable stainless steel keepers with over 1,500 lbs (680.4 kg) of holding force in fail secure mode. Single solenoid operates on 12/16/24 VDC power. Electrical actuation unlocks the keeper, releasing the latchbolt so the door may be opened without operating the latch itself. The voltage is field selectable to match power source of 12/24 VDC. VA7400-16VDC voltage adapter required when using 16 VDC power, available separately. Equipped with a quick connect plug-in type connector. Field selectable fail safe/fail secure.