Low voltage cable with insulated solid conductors resistant to spread of fire. Used in thermostats, burglar alarms, and intercoms. 300V rating in 500′ spool. UL listed. 20-2, red/white. No. 70102-66-32: Length: 500′, Size: 20AWG, Type: Low Voltage Cable, Number Of Conductors: 2 Conductors, Conductor Material: Copper, Conductor Type: Solid, Voltage: 300V, UL Listed: Yes, Pkg Qty: 1, Package Type: Roll