- Non-Plenum-Rated Thermostat Wires Are Electric Cables Rated For Installation In Non-Air-Circulating Spaces In Buildings, Such As Closed Walls
- They Often Connect Thermostat Controls To A Main Power Circuit Via The Ceiling
- They Are More Toxic Than Plenum Wire If They Burn
- They Are Commonly Used In Commercial Buildings With Fewer People, Such As Warehouses And Distribution Centers
| Type | Unshielded Thermostat Wire |
| AWG | 18 |
| Color | Brown |
| Voltage | 150 V |
| Insulation | Polyethylene HDPE |
| Material | Copper |
| Temperature Rating | 140 °F |
| Standards | NEC 725; UL Listed |
| Spool Length | 250' |
| Number of Conductors | 4 |
| Shielding | Unshielded |
| Nominal Outside Diameter | 0.15 in. |
