Electromagnetic Door Holder,Wall Mount,Die Cast Metal,Amp Draw @ 24V .015,Input Voltage 24VAC/DC, 120VAC,Projection from Wall (In.) 13/16,Total Projection (In.) 2-5/8,Holding Force (Lb.) 25 to 50,Lock Body Length (In.) 4-5/8,Lock Body Width (In.) 2-3/4,Lock Body Depth (In.) 13/16,Strike Plate Length (In.) 2,Strike Plate Width (In.) 2,Strike Plate Depth (In.) 1-5/8,Mfr. Series 1509,Powder Epoxy Aluminum Finish,Standards UL Listed FM Approved,For Use With Fire Panels