Automatic Fire Door Closer 12V 24V DC Electric Magnetic Electromagnetic Door Holder

Automatic Fire Door Closer 12V 24V DC Electric Magnetic Electromagnetic Door Holder. Dual Voltage Support: Operates on 24VDC/AC or 120AC+10% for versatile installation. Low Power Consumption: Energy efficient design with current consumption as low as 20mA to 85mA. Fail-Safe Operation: Automatically releases and closes door upon power loss or fire alarm activation. Field Selectable Force: Adjustable holding force of 40 lbs or 110 lbs based on voltage requirements. Semi-Flush Construction: Sleek semi-flush design with 31/16 inch projection for aesthetic integration. Broad Door Compatibility: Suitable for all kinds of single and double smokeproof fire-rated doors. Simple Wiring Design: Features screw terminal block input connections for neat and easy wiring. Durable Build Quality: Constructed from zinc iron with ball pivot assembly for full plate contact.