Fire Alarm Magnetic Door Holders

So please choose the magnetic door holder or magnetic fire door holder and we will quickly ship the products right to your location.

Fire alarm magnetic door holders. 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. They provide a high holding force. Mount the wall plate in an electrical outlet box or use a surface mount box sold separately. When designing a fire alarm system you may come across the need for magnetic door holders.

The device holds a door open while energized. These door holder releases have a holding force of approximately 25 lbf 111n. Wire these holders directly into your fire alarm system. On the fire alarm side you would need a control relay to intercept a switch leg of power to the door holder circuit as well as an initiating device such as a smoke detector to activate the relay.

The development of national fire protection association 101 life safety code and smoke detection technology required that smoke detectors release the door holders instead of fusible links. Door holders are normally energized to magnetically hold doors open. The dorgards are great by the way but if the spec is magnetic door retainers they may want them as opposed to dorgards but if its high end property which a flat worth 3 5 mill is id expect a proper fire alarm in tbh a 2 zone panel is cheap enough and will give you the felxibility you need and give you extra income on repairs and servicing. When activated by a fire alarm the magnet shuts off and releases the door.

Electromagnetic door holders and releasers keep doors open until they are released by fire alarm systems remote smoke detectors or other switching devices. These fire rated door holders have an energized coil which creates a magnet strong enough to hold the self closing fire rated doors in the open position. Some of our most popular magnetic door holders and magnetic fire door holders include rixson electromagnetic door holders cal royal magnetic door holders and more. For use with doors that already have a closer these holders keep doors open with an electromagnet.

In the event of a fire emergency the fire alarm control panel or other compatible control means will release the magnet allowing the door to close to prevent the spread of smoke. Door holders closers can play an important role in controlling smoke migration in a building. With that said magnetic door holders are used as a convenience to hold doors open during normal operation.