Von Duprin Electric Power Transfer

Von Duprin's EPT Series transfers power from frame to door on swinging doors.

One section mortises into the frame while the other mortises into the door. A section of expanding conduit links the two halves together. This makes for a ideal method of securing electrical wires on high traffic doors.

EPTs are designed to be used with standard butt hinges. For hinge sizes up to 5'' the EPT can swing up to 180 degrees. The same is true when 3/4'' offset pivots are used.

Other hinge types and sizes limit door swing when using EPTs. 5-1/2'' hinges can swing to 130 degrees aad 6'' hinges to 110 degrees. EPTs cannot be used at all with center-hung pivots or swing-clear hinges.

Two models are available from Von Duprin.

EPT-2 Comes with 2 wires of 18 gauge

EPT-10 Comes with 10 wires of 24 gauge

Additional wires can be added during installation.

The EPT-2 contains wires to be used with Von Duprin EL devices when the run from the power supply to the device is less than 100'. When runs are longer the wires can be removed and replaced with 12 gauge wire, but only up to 200' maximum.

EPTs offer the advantage of maximum wire protection in high traffic or high security applications. When the door is closed, the wires are protected against attack by high quality components that are completely concealed. When the door is open, only the heavy duty conduit is exposed.

EPT's are best used on new construction as the door and frame prep required is difficult to perform in the field. Wood doors and frames are relatively easy to prep for EPTs, but it's rare to have both door and frame produced from wood. Typically, the frame is hollow metal and retrofitting metal for an EPT can be a challenge.

If a frame is to be retrofitted for an EPT it is best to install the unit near the top of the door. This is due to the difficulty of running wires behind an existing frame. Installing an EPT near the top of the door reduces the distance the wires need to run behind the frame.