Because of potential regulations affecting the use of other devices, a door strike will generally be the most economical locking mechanism.
Always order electric strikes as: 1) fail locked (fail-secure) which means the strike will be locked when you remove power; 2) 24VDC,250ma max.; 3) continuous duty; These specifications correspond to the requirements of access control. Electric strikes are generally more difficult to install than electro-magnetic locks and the services of a competent locksmith may be required.
If the door strike is installed on a fire rated door, it may have to be approved for such use to maintain the fire rating of the door.
On double doors, the door strike will be installed on the inactive door which should be bolted down. A door cord or electric-conductive hinge will carry the power to the strike.
It may not be possible to install door strikes on special doors such as full glass doors. The only alternative may be to install an electro-magnetic lock.
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