The retro locks are designed to replace old-style 120 locks without having to
replace the frame or cut in a new lock pocket. All 120 Retro Locks are built as
3" deep models.
Standard: When push button closes circuit or when unlocked by key, bolt is
retracted and remains retracted until door has been opened slightly. Closing of
the door automatically engages and dead-locls the bolt, relocking door.
Without latchback: Specify "NN" when ordering. Once unlocked,
the latchbolt is held retracted as long as the solenoid is energized. A maintained
contact switch may be used to keep the latchbolt retracted for an extended preiod
of time (122EMLLNN)
Here for Standard Features, Options & Accessories