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“ Electrictic latch retraction power requirements ”

RELATED FAQS

Question
Answer
Why doesn't full rotation of the AD or CO Series Exit Trim (993) outside lever fully retract the Von Duprin 98/99 Exit Device latch?
- AD Series and CO series products require that the Night Latch (NL) screw is installed in the exit device.  Be sure this screw is installed- Exit hardware and strike must be properly mounted ...
What power supply is needed for EL devices?
The Von Duprin PS914 power supply must be used on the EL devices with either the 900-2RS or 900-4RL option board since the EL devices requires power supplies set at 24VDC to be able to provide the ...
  You can use a Von Duprin PS914 power supply with any of the following option boards depending on the application. 900-2RS board  will power 1 or 2 devices that do not require timing from pow...
What is needed to keep the EL device retracted all day?
To keep the Von Duprin electric latch retraction EL or QELA exit device dogged (retracted) all day, have your access control, Key pad, key switch, fire alarm contact or any other signals ...
Can an EL device be ordered Fail Secure?
This is not possible as an EL device is an electric latch retraction and requires power to unlock the door thus only available in Fail Secure.