Installation - eSSL EM lock Installation Manual

- Sturdy: Magnetic locks may also suffer less damage from multiple blows than do
conventional locks. If a magnetic lock is forced open with a crowbar, it will often
do little or no damage to the door or lock.
Disadvantages
- Requires continuous power: To remain locked, the magnetic lock requires a
constant power source. The power drain of the lock is typically around 3 watts, far
less than that of a conventional light bulb (around 60 watts), but it may cause
security concerns as the device will become unlocked if the power source is
disrupted. By comparison, electric strikes can be designed to remain locked should
the power source be disrupted. Nevertheless, this behavior may actually be
preferable in terms of fire safety.

Installation

The magnetic locks are suitable for both in-swing and out-swing doors. Brackets
(L bracket, LZ bracket, U bracket) are used to adjust the space between the door
and lock. The magnetic lock should always be installed on the inside (secure side)
of the door. Most installations are surface mounted. For safety, magnetic lock,
cables, and wires should be inserted in the door or be a flush mount. Installation is
as simple as installing the header of the door frame for out-swinging doors or using
a Z-bracket for in-swinging doors. It is important to make sure the armature plate
and the electromagnet align as closely as possible to ensure efficient operation.
Magnetic locks are almost always part of a complete electronic security system.
Such a system may simply consist of an attached keycard reader or may be more
complex, involving connection to a central computer that monitors the building's
security. Whatever the choice of locking system, fire safety is an important
consideration.
Other variations and improvements on the electromagnetic locks have been
developed. The most remarkable is the shear lock, where the armature does not
directly pull off the face, but the load is instead in shear, like a mechanical stop.
The shear magnetic lock allows a door to swing in both directions, as opposed to
the original (and now ubiquitous) direct pull type, which normally works either in
an in-swing or out-swing configuration.