When it comes to installing a cable specifically engineered to handle the evolving demands and functionality of thermostats, plenum-rated thermostat wire delivers exactly what you need:
• First cable designed specifically for the power requirements of the circuit
• Ideal for both new (energy-efficient) and existing HVAC equipment
• Available in 2, 3, 4 and 6-conductor constructions
TWP-18/3 is 18 guage solid, three conductor, plenum rated in 500' rolls.