Southwire 552080407 Thermostat Cable 20 Awg 8 Conductor

Product Description

The SOUTHWIRE 552080407 is a 20 AWG, 8-conductor thermostat cable designed for low-voltage control wiring in HVAC systems. The cable features a brown PVC jacket rated for sunlight resistance, making it suitable for both indoor and outdoor routing runs. At 0.173 inches in overall diameter, it pulls cleanly through conduit and behind walls without excessive bulk. This cable is sold in 1-foot cut increments with a 250-foot minimum cut length and ships as part of a 1,000-foot total coil. HVAC technicians and installers use this cable for multi-zone thermostats, zone controllers, and other low-voltage control applications requiring eight conductors.

This thermostat cable is used in residential and light commercial HVAC installations where multiple control signals must be routed between a thermostat, air handler, furnace, or zone board. The 8-conductor configuration supports systems requiring heating, cooling, fan, common, auxiliary heat, reversing valve, and additional zone or accessory terminals. The sunlight-resistant PVC jacket allows routing through attic spaces, exterior walls, or short exposed outdoor runs without added conduit protection in many installations.

Key Features

• 20 AWG stranding suitable for low-voltage HVAC thermostat control circuits
• 8 conductors accommodate multi-stage and multi-zone thermostat wiring configurations
• Brown PVC jacket provides sunlight resistance for versatile routing locations
• 0.173-inch overall diameter for easy pulling through conduit or wall cavities
• Sold in 1-foot cut increments with a 250-foot minimum order quantity
• Part of a 1,000-foot coil for high-volume job or stocking needs

Compatibility

Designed as a standard low-voltage thermostat cable for use with residential and light commercial HVAC control systems requiring 8-conductor, 20 AWG wiring.

Installation Notes

Installation should be performed by a licensed HVAC technician or electrician familiar with low-voltage control wiring. Power down the thermostat, air handler, and furnace at the breaker before pulling or terminating any control wiring. Follow NEC Article 725 guidelines for Class 2 low-voltage control cable routing and separation from line-voltage conductors. Avoid sharp bends or kinks when pulling through wall cavities to maintain conductor integrity.