Non-power-limited circuits may be wired using THHN in EMT.

• A. THHN in EMT
• B. THHN in PVC
• C. NM-B
• D. SE cable

Answer: (A)

THHN is a single-conductor insulation designed for use in raceways, including metal conduits like EMT. For non-power-limited circuits, pulling individual THHN conductors through EMT provides a clean, protected path and allows the conductors to handle the typical loads and temperatures of those circuits. NM-B is limited to dry interior spaces in walls and ceilings and isn’t run inside conduit like EMT. SE cable is a different, older type of service/branch-circuit cable not intended for use inside EMT in this type of installation. THHN in PVC isn’t the scenario described here, since the statement specifically refers to EMT as the raceway. So using THHN in EMT is the appropriate pairing for non-power-limited circuits.