Southwire/coleman Cable 553080407 Thermostat Wire 18/8 250 Ft

Product Description

The SOUTHWIRE/COLEMAN CABLE 553080407 is an 18 AWG 8-conductor thermostat wire supplied in a 250-foot roll. Designed for low-voltage control wiring, this cable connects thermostats, zone controllers, and HVAC control boards in residential and light commercial systems. The 8-conductor configuration provides enough wire runs to support multi-stage heating and cooling systems, heat pumps, or zoning applications where multiple control signals are required. HVAC technicians reach for this cable on new installations and service replacements that demand a reliable, color-coded conductor count without splicing multiple shorter runs.

This thermostat wire is suited for low-voltage HVAC control wiring applications in residential and light commercial settings. A 250-foot roll covers most single-family new construction runs or multi-zone retrofit jobs without needing additional spools. The 8-conductor count accommodates heat pump systems with auxiliary heat, emergency heat, and fan control leads, as well as zoning panels and communicating thermostats that require dedicated signal paths.

Key Features

• 18 AWG conductor gauge rated for standard low-voltage thermostat control circuits
• 8-conductor configuration supports multi-stage and heat pump wiring schemes
• 250-foot roll length reduces mid-run splices on longer residential and light commercial installations
• Packaged as a unit-of-measure single roll for straightforward job-site inventory

Compatibility

Designed as an OEM-style replacement and new-installation cable for residential and light commercial low-voltage thermostat and HVAC control wiring applications.

Installation Notes

Thermostat wire is installed by licensed HVAC technicians in accordance with NEC Class 2 low-voltage wiring guidelines. Power down the HVAC system at the disconnect and set the thermostat to the off position before making any control-wiring connections. Avoid running low-voltage thermostat wire parallel and in close proximity to line-voltage conductors for extended distances, as this can introduce interference. Secure the cable at regular intervals per local code requirements and label conductors at both ends before termination.