Electromagnetic locks have become the preferred door release
mechanism for many end users and installers. The magnetic
locks have no moving parts, making them maintenance free.
They are not affected by back pressure (or backload) in
the event of a real emergency.They are Fail Safe - the door
is open when the power is disconnected . Power can be disconnected
intentionally or automatically by the buildings fire panel,
a smoke alarm or any other type of alarm.
The magnetic locks are available in a variety of sizes
and have several optional features to enhance their operation.
The size of the magnet is indicative of its holding force.
In the ROFU line are magnets with holding forces from 275
to 2900 pounds (125 to 1350 Kg). Optional features include
Door Status Sensor, Delayed re-locking, Delayed Egress or
Anti-Tamper sensor. Please see the following pages for more
detail.The locks can be used in most any application - from
basic access control to high security. They operate when
electric current is applied to them and stop working when
the power is turned off. As a result, any type of access
control system that can open or close a relay , can interface
with a magnetic lock.