作者：欧西朗OSRAN闭门器 发布时间：2018-04-29 18:14查看次数：
防火门电磁释放器 - 断电型，是一种与普通闭门器搭配使用的释放器，在常通电的消防控制下正常工作，使防火门保持常开状态。当发生火灾时，消防控制中心断开电源，释放器工作，释放拉扣，防火门在普通闭门器的作用下关闭。
断电释放 / 可手动释放
The power-off type electromagnetic release device is a kind of releaser used with the common closed door. Under the condition of keeping electricity and fire control, it works normally, and keeps the fire door open. When a fire occurs, the fire control center disconnects the power supply, and the releaser releases the pull button, and the fire door closes under the action of a common door closer.
Notes: When installing, the zipper or cord should be kept perpendicular to the door leaf to avoid sticking.
1. Electromagnetic releaser can be used in the public places of dense flow of people or use frequent. such as: shopping malls, supermarkets, hotels, office buildings, hospitals, schools, entertainment places etc. (evacuation aisles, stairways, front rooms). The electromagnetic releaser has remote control and local release function. The (power off) releaser is connected with the fire control system, the long-term DC 24V power supply (keep power state), the first charge for 15 seconds after the power supply, power consumption is 7mA, the red light come on, then the power consumption is 0.01mA, almost no consumption of the main current. When the fire, the electromagnetic releaser receives the linkage control signal, Immediately power off release automatically disconnect pull button, the fire door closes under the action of a common door closer. The closing door mode after power off to release is more in line with new national fire standard requirements.
2. It is easy to install, no need to change any structure of the original fireproof door, and accessories can be selected a chain or a steel rope, it's length can be customized. The electromagnetic releaser is suitable for left door or right door, that is, the right and left is universal.
3. The electromagnetic releaser is suitable for all kinds of fire doors: steel fire doors, wooden fire doors, stainless steel fire doors, and glass fire doors.
4. When the power-off type is compared with the power-on type, the power-off type is more stable, more flexible. People can release them manually. The pull resistance is more than equal to 900N.
Summary: The electromagnetic releaser is especially suitable for large new projects. At ordinary times, it does not occupy the fire power supply, and has no power consumption in the later period. The renovation project can be directly incorporated into the smoke control system, the alarm bell and the emergency lighting system, and the wiring cost is very low.