Electromechanical latches for plastic (PVC), glass and aluminum doors allow you to prohibit and allow entry into the room using an ACS controller or an exit button. To authorize the user, you can use contactless card and key fob readers, code panels and fingerprint scanners.
Parameters for selecting electromechanical door strikes
By type of opening/closing, devices are divided into:
Normally open(BUT) electromechanical latches. When the power supply is removed from the device, the door opens immediately. This allows for unimpeded evacuation of office personnel in the event of an emergency. Normally open electric strikes are recommended for installation on doors of rooms where people are constantly present.
Normally closed(NC) electromechanical latches. They open when power is applied and remain closed when power is removed. These locking devices provide greater security on site. Even if there is no voltage in the central power supply network, the door will remain closed.
For NC products installed in rooms where people are located, it is necessary to provide an electrically independent unlocking method. On door leaf A mechanical handle or a special unlocking device is installed inside the office.
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Electromechanical latch– a mechanism that locks the door and is controlled from a distance. It is widely used in access control systems as a convenient and simple way to ensure that no one will gain unauthorized access to the room on the door of which the latch is installed.
Conventionally, latches can be divided into several types:
Normally closed. The mechanism opens only at the moment when voltage is applied to it. If there is no power supply, the device remains in closed position, the door is locked. This option prevents possible break-in of the premises in any circumstances. Some models may be equipped with a special switch that moves them to the normally open position.
- normally open. The mechanism is in the closed position all the time that flows through its coil. electricity. If there is no power supply, the device opens. From point of view fire safety This option is better because it does not interfere with the evacuation of people during a fire.
- with arresting. Technically, such a latch is normally closed, but at the moment an electrical impulse is applied, it is transferred to the normally open position until the door is opened. After this, the latch will automatically switch back to the normally closed mode and continue to function in it. Such mechanisms can be identified by the presence of a special tongue in the middle.
Installation method is another way to classify the latch. Possible types settings:
Overhead;
- mortise.
Invoice electromechanical latch is installed on the door, and most often serves as an addition to the main lock, but can also be installed separately. Overhead latches are easy to install and do not require special skills or complex, time-consuming work for installation. Such latches can be installed on entrance doors, interior, gate or storage door.
Mortise electromechanical latch mounted inside the door. Considering that this is a labor-intensive process, the use of such latches may be relevant for designer doors when it is important not to violate appearance premises, or to increase the level of security. In the case where the latch is recessed into the door, it is much more difficult to disable it - all that the visitor sees is part of the fastener and the strike plate on the door jamb.
Electromechanical latch can be controlled remotely if it is included in the access control system. It can be connected to a reader, an intercom, a controller or a keypad. This solution allows you to organize automated system allowing visitors to enter a protected facility upon presentation of a pass or dialing a special access code.
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The device is a response part door lock and operates under the control of a signal from a controller that is part of the intercom system or Proximity reader. During installation, the mechanism does not require cable laying, which greatly simplifies its installation and connection. These can be electric latches designed for permanent circuits, alternating current and universal with supply voltage from 6 to 48 V.
Electric strikes differ:
- By overall dimensions.
- By design:
- symmetrical and asymmetrical;
- with and without a bar;
- with adjustable crossbar;
- for overhead and mortise locks.
- In terms of fault tolerance:
- normally closed electric strikes, when after removing the supply voltage the lock is locked and remains closed;
- normally open, in case of power failure entry mechanism unlocks and the door remains open.
- For additional functions:
- condition monitoring;
- adaptation;
- unlocking;
- retention.