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“
ELECTRIC LATCH TYPES
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RELATED FAQS
Question
Answer
How do I wire an EL device to normally hold open the latch and release it during a fire alarm?
Resolution:
Use a normally closed fire alarm as the input to the power supply option board (PS873-2 or PS914-2RS), this will hold the latch retracted. During a fire alarm, the contact will open, dropping...:
Why will my EL 1490 fire my latches but not hold?
Resolution:
One of the following items may cause the EL1490 device to retract then release: Incorrect power supply - Verify you have the PS873-2/4TD or PS914-2RS/4RL power supply. Problems with wire gauge...:
Is a Von Duprin or Falcon EL device available in 12V?
Resolution:
Electric latch retraction, EL, devices are only available in 24VDC. (Note: The EL option for 24/25 series and related service parts have been discontinued as of 7/25/2022):
What power supply is needed for EL devices?
Resolution:
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...:
How does the latch bolt retract on the Von Duprin XP device?
Resolution:
The latch bolt on an XP98/99 exit device does not retract. The latch bolt will release and pivot out of the way when push bar is depressed or out side trim is activated.:
Can the Von Duprin EL option be added to any existing 98/99 device?
Resolution:
The Von Duprin EL option can be added to any existing 33A/35A, 98/99 series exit devices. :
Is there an EL conversion kit for the Falcon 2390 exit device?
Resolution:
There is no EL conversion kit for a 2390, the device will need to be replaced.:
Can Steelcraft doors be prepped for the 98/9949 Concealed Vertical Cable Exit Device?
Resolution:
Yes, as an option, Steelcraft doors are available with factory prepared for the 98/9949 Concealed Vertical Cable Exit Device.L, B, CE, T and CE-Series doors are available factory preparedDoor prepa...:
Are flush bolts available on the inactive leaf of hurricane double doors with either FBC or NOA approvals?
Resolution:
Ives SB360 surface bolt at top and bottom are the only flush bolts approved for use on H-Series hurricane FBC or NOA applications? The only approved latching hardware for inactive leaf of pairs w...:
What is thermal bow?
Resolution:
Thermal Bow is a temporary condition which occurs in metal doors mainly due to the temperature differential from one side of the door to the other. This may occur in exterior doors when direct sun ...: