This UHPPOTE Electric Strike Door Lock Fail-Secure is the perfect solution for access control systems and deadlatches or cylindrical locksets. It offers fail-secure operation, so when power is lost, the strike locks the door. This "no-cut" model is specially designed to fit most metal or wooden doors with only minimal cutting required of the door frame beyond the hole for the strike. It provides 1,000-pound holding force/static strength and is a solenoid with one function, can be wired any way. It uses 2-contacts, non-polarized connection to access control or egress device and will polarized when the diode is added. This lock is the perfect choice for any access control system.