Dortronics 6200 Series - 18″ Armored Door Cord

The Dortronics 6220 is an 18 inch armored door loop that carries low voltage wiring from the frame across the hinge gap into the door leaf, so power and signal can reach hardware mounted on a moving leaf. It has a steel body to protect the cable from crushing and tampering, a J-box at each termination point for the wiring connections, and a 4 conductor cable inside. Mounting is surface applied, so no door or frame coring is needed.

The 6220 carries a 4 conductor cable. That covers a typical run such as a pair for power to a device on the leaf plus a pair for a switch or monitoring contact. If your door needs more than four conductors, for example power plus request-to-exit plus separate latch monitoring on a single leaf, count your runs first, because the 6220 gives you four and no more.

Yes. The 6220 is listed for use with Dortronics 6400 Series egress bars, where the bar sits on the door leaf and needs wiring brought over from the frame. It is not limited to that pairing, but that is the application Dortronics calls out for it.

No. The 6220 is a simple surface mount assembly, so it fastens to the face of the door and the face of the frame with the J-boxes taking the wiring terminations. That makes it the option to use when you cannot core a door for a concealed electric transfer hinge or an electric power transfer, such as on an existing fire rated leaf you do not want to modify, or on a retrofit where the door is already hung.

Both get low voltage across the hinge gap; the difference is exposure and prep. An armored cord like the 6220 mounts on the surface in 18 inches of steel loop with J-box terminations, so installation is fast and nothing needs to be cut into the door or frame, but the loop is visible and reachable. A concealed transfer or electrified hinge hides the wiring entirely and is the choice where appearance or vandal resistance matters, at the cost of routing and mortising both the door and frame. On retrofits and back-of-house openings the surface cord usually wins; on lobby and public-facing doors most specs go concealed.

The 6200 Series armored door cord is offered here as a single model, the 6220, in the 18 inch length. There is no finish or length choice to specify, so the only thing to confirm before ordering is that 18 inches of loop reaches from your frame J-box location to the termination point on the door leaf with enough slack for the door to swing full open.

It is a commercial rated part. The steel armor is the reason: on a high traffic opening the loop flexes every single cycle, and a bare cable or plastic jacketed loop is what fails first. The 6220 protects the run with a steel body and terminates into J-boxes at both ends.