Magnet Door Holder SEM Series - LCN -
Magnet Door Holder SEM7820 / SEM7830 / SEM7840 - LCN -
This is an electromagnetic release that allows the normally closed fire door to be opened and held open at any time. The magnetic adhesion can be easily pulled apart by hand!
The "Magnet Door Holder" is an electromagnetic release designed for normally closed fire doors, operating continuously with power. It is an excellent product that can be used not only in new constructions but also for retrofitting and renovation work after completion. By using electromagnetic magnet adhesion to attach the magnet plate on the door side to the main unit, it allows the normally closed fire door to be opened and held at any time. Although it is continuously powered, the magnet can be manually pulled away, allowing the door to be closed at will. The adhesion force is approximately 13kg to 15kg, making it easy to operate with light force. Additionally, if a one-shot off push button switch is installed separately, it can be conveniently operated remotely and is effective in preventing door warping. With a separately sold power supply (control panel), it can interlock and control heat and smoke detectors, signal lines, 100V power supply, and the automatic closing of door closers. In the event of a fire, the power supply, upon receiving a fire alarm signal, will become de-energized, releasing the electromagnetic magnet adhesion of the "Magnet Door Holder," allowing the door to close fully through the automatic closing mechanism of the door closer. Once the power supply is restored, it can return to its normal operating state.
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basic information
= Main Specifications = 〇 Electrical Specifications: 24VDC (or AC) +10% -15% @ 0.11AMP / 100-120V AC @ 0.02Amp MAX (Voltage protection up to 600V) 〇 Electromagnetic magnet holding force: approximately 13kg to 15kg *It can be pulled off by hand with a certain amount of force. 〇 Finish Color: Aluminum color (AL), Dark Bronze (DB) = Important Notes = ◎ A power supply (sold separately) is required as a control panel to consolidate relays, voltage conversion, timer settings, etc., for fire alarms and disaster prevention centers. Please contact us for details. = Cautions = * This is not a door stop. Strong impacts to the main unit may cause malfunction or damage, so please install a separate floor-mounted door stop. * Please prepare screws for mounting the main unit / magnet plate separately. * The "Magnet Door Holder" is for indoor use. It does not have waterproof or weather-resistant properties. * For more details, please refer to the catalog (PDF data). A separate instruction manual is also available.
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Applications/Examples of results
= Delivery Performance = ★ Constantly closed fire doors at tenant entrances on each floor of office buildings, in front of reception internal phones, etc. ★ Constantly closed fire doors in high-traffic areas such as back corridors. ★ Constantly closed fire doors that need to be kept open for ventilation, etc. = Additional Notes = ◇ Due to compatibility with baseboards, we can drill holes for wiring on the back side of the main body (optional), so please consult with us. ◇ In Tokyo and the metropolitan area, we also accept installation work including secondary wiring, so please feel free to consult with us.
Line up（3）
| Model number | overview |
|---|---|
| SEM7820 | Floor-mounted type (underfloor wiring) |
| SEM7830 | Wall-mounted exposed type (exposed wall wiring to conduit type) |
| SEM7840 | Wall-mounted embedded type (in-wall wiring) |
catalog（1）
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Company information
Tokyo Man is based on "universal design that is friendly not only to able-bodied individuals but also to people with disabilities and the elderly, and is barrier-free, making it convenient for everyone." We introduce excellent products that were not available in the Japanese market from the global architectural community. We are committed to helping create buildings that are more user-friendly, convenient, and safe. Since our establishment, we have had our soundproof doors adopted by many cultural facilities, and in recent years, we have been particularly focused on the development of specialized fire protection equipment for theaters (fire doors) and the promotion of universal design products. Tokyo Man will continue to introduce only the finest products from around the world.