Power Transfers
When electric hinges or power transfers are used with electrical locks and/or strikes, a conduit (raceway) is recommended in the door. The conduit is run from hinge-side preparation to lock/strike preparation. When used with electrical panic devices, most electrical connections are through the hinge-side mounting of the device, and no conduit is required in the door. Surface and concealed mortise-mount power-transfer loops provide a means of running wires from the frame to doors equipped with electric locks and exit devices. There are two common types of power transfer units: surface and concealed.
Power-transfer door loops may be mortised or surface-mounted to transfer power and monitoring signals to door and frame. They are mortised into door and frame for concealed transfer of power and monitoring signals. Surface power transfers like an armored door cord or door loop are considered the most economical solutions and can be used on existing openings or prepared in the field for new construction. Consult your local AHJ for fire-rated openings.
Electric power-transfer hinges provide a concealed and vandal-resistant method for running wires from the frame to doors equipped with electric locks and exit devices. Most electric hinges will fit into a standard 4-1/2" or 5" hinge preparation with a modification the the reinforcing? for the wire to pass through. Electric hinges are recommended to be used in the center hinge position.
Heavy duty electric power transfer devices provide a concealed and secure means of transferring electric lock and exit-device power and signal wires from the frame to the door. Concealed transfers are factory prepared and approved for fire-rated openings. Completely concealed when the door is closed, the electric power transfer is ideal for heavy traffic and applications requiring higher security to inhibit tampering and abuse. Consult your local AHJ for fire-rated openings.
The wireless power transfer uses a radio frequency (RF) transmitter to send energy wirelessly across the door gap to an RF receiver that converts the energy to DC voltage to power electrified locks and latches. Retrofitting electrified locks into openings with existing wood doors is simpler and less time consuming, as core drilling the door is not required. What works well with steel doors, too. They use magnetic induction for the power transfer. The wireless power transfer also allows for transfer of latch bolt monitoring, REX or data signals.
Did You Know?
Detex offers several power transfer options that can be used for many applications, including lockdown, delayed egress with latch retraction, automatic operators with latch retraction, and outdoor delayed exit.
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