Electromagnetic Lock, Surface Mount, Opening Action Electromagnetic or Manual, Steel, Amp Draw @ 12V 750mA/12V DC, Amp Draw @ 24V 450mA/24V DC, Input Voltage 12/24V DC, Projection from Wall (In.) 3 in, Features Delayed Egress for Single Outswing Door, Total Projection (In.) 3 in, Holding Force (Lb.) 1,500, Armature Length (In.) 10 1/2 in, Armature Width (In.) 2 5/8 in, Armature Depth (In.) 1/2 in, Lock Body Length (In.) 12 1/2 in, Lock Body Width (In.) 3 1/16 in, Lock Body Depth (In.) 3 in