More info
Description / Abstract: This Practice describes the requirements for instrumentation junction boxes and is only for junction boxes installed in general purpose or Division II area classifications with wiring and terminals in accordance with the National Electric Code (NEC). Junction boxes in accordance with this Practice are not to be used for electronics or other active elements without additional consideration.
Purpose
This Practice provides the requirements for junction boxes used for instrumentation signals, thermocouples, and resistance temperature detectors (RTDs).