Fire Alarm Magnetic Door Holders

There are no codes nation or state wide that require doors to be held open.

Fire alarm magnetic door holders.

Electromagnetic door holders and releasers keep doors open until they are released by fire alarm systems remote smoke detectors or other switching devices. 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. In the event of a power failure they release the door to a closed position to keep the facility secure. 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.

All are reversible for right or left door swing directions. They provide a high holding force. 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. With that said magnetic door holders are used as a convenience to hold doors open during normal operation.

When activated by a fire alarm the magnet shuts off and releases the door. These door holder releases have a holding force of approximately 25 lbf 111n. So please choose the magnetic door holder or magnetic fire door holder and we will quickly ship the products right to your location. For use with doors that already have a closer these holders keep doors open with an electromagnet.

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. Wire these holders directly into your fire alarm system. 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. Door holders are normally energized to magnetically hold doors open.

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. When designing a fire alarm system you may come across the need for magnetic door holders.