The heavy-duty, tamper-resistant concealed electrical power transfer (CEPT) securely transfers power and data from the hinge side of the frame to electrified hardware on the door. The unit is discreetly concealed between the frame and door when the door is closed. Available in multi-wire configurations and varying finishes, the CEPT complements any architectural setting. Direct retrofit for competitor products. All metal construction including back boxes. 7/8" knockouts on back boxes accommodate EMF-type fittings. Tested to 1,000,000 cycles. Compatible with butt hinges up to 6" and continuous hinges with cutout. Tamper resistant, no exposed openings prevents foreign objects from reaching the wires or jamming the device.