Electric Door Strike, For Use With Cylindrical Locksets, Performance Medium-Duty, Failure Mode Fail Safe or Fail Secure, Input Voltage 12V AC/DC, 24V AC/DC, Door Frame Type Metal/Wood, Faceplate Width 1 1/4 in, Faceplate Height 4 7/8 in, Faceplate Depth 1 1/16 in, Pull Force 1,500 lb, Grade 1, Fire Rated No, Finish Satin Stainless, Material Stainless Steel, Bolt Throw 5/8 in, Strikes 500,000 Cycles, Standards ANSI/BHMA A156.31 Grade 1, RoHS Compliant, UL 294, Includes Faceplates Controls access by either holding or releasing a latch bolt. Hard-wire electric strike connects to a power source and a controller (typically a push-button switch, keypad, or card reader). Remains locked even without power. Prevents entry; a doorknob or lever on the lock allows for egress.