Mike Dolt Enterprises
Mike Dolt Enterprises
User: john2mcc, Location: NC & IN
Asked on: Thursday, March 24, 2011 at 6:34 pm EDT
Answered on: Tuesday, May 14, 2024 at 3:14 am EDT
Question: I have a thermostat mounted on the face of a 1900 box mounted to an enclosure wall with a knockout removed so it can sense the air inside the enclosure with the thermostst mounted on the outside. Is there any nec violation that anyone see's ?
Yes, there is a potential NEC violation in this installation.
NEC Section 404.14(B) states that "Enclosures shall not be used as junction boxes, auxiliary gutters, or raceways for conductors feeding through or terminating in the enclosure unless the enclosure is designed for such use."In this case, the 1900 box is being used as an enclosure for the thermostat, but it is also being used as a junction box for the conductors that feed the thermostat. This is a violation of NEC 404.14(B).To correct this violation, the thermostat should be mounted in a separate junction box that is designed for such use. Flag for review