Southwire 553085407 Thermostat Wire 18 Awg 8-conductor

Product Description

The SOUTHWIRE 553085407 is an 18 AWG 8-conductor thermostat wire designed for low-voltage control wiring in heating, cooling, and HVAC systems. Sold per foot, this wire gives installers the flexibility to purchase only the length required for each job. With 8 individually color-coded conductors at 18 AWG gauge, it supports multi-stage and multi-zone thermostatic control applications where a higher conductor count is needed. HVAC technicians and low-voltage control wiring installers rely on this wire for clean, reliable signal runs between thermostats, air handlers, heat pumps, and zone controls.

This thermostat wire is suited for residential and light commercial HVAC installations. Typical applications include wiring multi-stage furnaces, heat pumps with auxiliary and emergency heat, zone control systems, and any low-voltage thermostat circuit requiring 8 conductors. Because it is sold per foot, it is practical for both service replacement runs and new construction installations where exact lengths vary by job.

Key Features

• 18 AWG conductor gauge for standard low-voltage thermostat wiring
• 8-conductor configuration supports multi-stage and multi-zone HVAC systems
• Sold per foot for flexible purchasing on jobs of any size
• Designed for low-voltage thermostat and control circuit applications

Compatibility

Designed as an OEM-compatible low-voltage thermostat wire for use with residential and light commercial HVAC control systems requiring 18 AWG 8-conductor wiring.

Installation Notes

Installation should be performed by a licensed HVAC technician or low-voltage electrician in accordance with applicable NEC requirements for Class 2 low-voltage wiring. Always de-energize the HVAC system and disconnect power at the breaker before making any control wiring connections. Avoid running low-voltage thermostat wire in the same conduit or bundle as line-voltage conductors. Verify local code requirements for wire routing, labeling, and connection methods before starting work.

Technical Specifications

• Conductor Gauge: 18 AWG
• Number of Conductors: 8
• Sale Unit: Per foot
• UPC: 029892553081

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: 553085407