Fire-Lite FM996 FM Series electromagnetic door holders are designed for virtually any remote door release application They are primarily used to hold fire and smoke barrier doors open until released by a remote smoke detector or other switching device. The complete assembly consists of an armature contact plate with adjustable pivot mounting for installation in the door and a heavy duty electromagnet in a durable plastic enclosure mounted on the wall or floor behind the door. A separate closing device is required. Features & Benefits: Supports 12V DC, 24V AC/DC, or 120V AC Improperly applied voltage does not damage the unit Spacing kit for odd angles 25 to 40 lb (11.3 to 18.1 kg) holding power Fail-safe operation; power failure releases door to close Positive release button initiates closing motion Two year warranty Floor- and wall-mount models Certifications: ISO 9001 Certified UL Listed BSA 750-76-SA (FM980, FM998) MEA 447-00-E CSFM 3550-0075:173