Change Summary

• Section 600.6(A)(2) still requires a permanent field-applied marking identifying the location of the disconnecting means at a sign. In addition to that marking rule, the disconnecting means for a sign, outline lighting system, or controller is now required to be marked to identify the sign, outline lighting system, or controller it controls. An exception exists for external disconnect mounted on the sign, etc. If located remote, disconnect required to be installed at an accessible location available to first responders and service personnel.

Expert Analysis

For other than an exit sign or a cord-and-plug connected sign, each sign or outline lighting system is required to be controlled by an externally operable switch or circuit breaker that opens all ungrounded conductors and controls no other loads. This disconnecting means is required to be located at either; (1) the point the feeder circuit or branch circuit(s) enters the sign (2) within sight of the sign or out of the line of sight of the sign capable of being locked in the open position in accordance with 110.25, (3) within sight of the sign controller (if applicable), or (4) a remote location (new for the 2020 NEC).

For the 2020 NEC, the disconnecting means for a sign, outline lighting system, or controller is now required to be marked to identify the sign, outline lighting system, or controller it controls. An exception to this identification rule was also added, which will exempt an external disconnecting means that is mounted on the sign body, sign enclosure, sign pole, or controller.

This new marking requirement at 600.5(B) can be tied to a new remote location provision at 600.6(A)(4). This new provision calls for the sign disconnecting means, if located remote from the sign, sign body, or pole, to be installed at an accessible location available to first responders and service personnel. This new provision goes on to say the location of the disconnect shall be marked with a label at the sign location and marked as the disconnect for the sign or outline lighting system with this label complying with 110.21(B) for label provisions.

Leviton Solution
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