In the event of a power failure they release the door to a closed position to keep the facility secure.
Electromagnetic door holder installation.
After a successful prototype and installation at the forum saphirstein continued evolving and improving the design and established the locknetics company to develop.
Electromagnetic door holders and releasers keep doors open until they are released by fire alarm systems remote smoke detectors or other switching devices.
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Electromagnetic door holder releases schematics and accessories.
Be released thus allowing the door closers to close the doors.
Electromagnetic door holders releases troubleshooting.
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All electromagnetic door holder releases shall be supplied by architectural hardware supplier.
These door holders were traditionally used to hold doors open but in this application saphirstein believed that they could be packaged and adapted to work as a fail safe lock.
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When power is restored the magnets will re energize permitting the doors to be manually returned to their held open position.
These door holder releases have a holding force of approximately 25 lbf 111n.
The device holds a door open while energized.
See rixson price book for specific details of the limited warranty.
A short video showing how to properly install an electro magnetic door lock to your frame.
When de energized by a relay controlled by the fire alarm system or other switch the door is released to a closed position checking the spread of smoke and flames.
All units shall have a single coil to.
Rixson electromagnetic door holder releases are warranted for 2 years for defect.