Electromagnetic Door Holder, Floor Mount, Single Door-, Amp Draw @ 12V -, Amp Draw @ 24V 0.015 AC/DC, Input Voltage 120VAC, 24VAC/DCTotal Projection (In.) 6-7/16, Holding Force (Lb.) 25 to 50, Armature Length (In.) 1-5/8, Armature Width (In.) 2-1/4, Armature Depth (In.) 2-1/4, Lock Body Length (In.) 4-13/16, Lock Body Width (In.) 4-5/8, Lock Body Depth (In.) 3-1/4- Release Delay, Powder Epoxy Aluminum Finish, Standards UL Listed, FM Approved, Options Included -, For Use With -