Diversitech 620-18-6 Thermostat Cable 18AWG 6C 250ft

Product Description

The DIVERSITECH 620-18-6 is an 18 AWG, 6-conductor copper thermostat cable supplied on a 250-foot roll. This low-voltage stat wire is used to connect thermostats and control boards in residential and light commercial HVAC systems. The copper conductors support reliable signal transmission across standard 24-volt control circuits. Each 250-foot roll is sized for single-job use or small multi-zone installs where multiple cable runs are needed. HVAC technicians use this wire during new equipment installs, thermostat replacements, and zoning projects.

This cable is suited for residential split systems, heat pumps, gas furnaces, and other HVAC equipment requiring multi-conductor low-voltage control wiring. The 6-conductor configuration supports systems with heating, cooling, fan, common, reversing valve, and auxiliary heat terminals. It is commonly pulled through walls, conduit, or framing during rough-in and finish work on both new construction and retrofit jobs.

Key Features

• 18 AWG copper conductors for low-voltage HVAC control circuits
• 6-conductor configuration supports full heat pump and multi-stage system wiring
• 250-foot roll provides enough length for most single-system or small multi-zone installs
• Copper construction supports consistent signal integrity across long runs

Compatibility

Designed as a standard 18 AWG 6-conductor thermostat cable for residential and light commercial HVAC control wiring applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or qualified electrician in accordance with NEC low-voltage wiring guidelines. Power down the HVAC system at the disconnect and thermostat before pulling or terminating wire. Avoid running low-voltage thermostat cable in the same conduit as line-voltage wiring. Verify all terminal connections are secure and matched to the correct control board terminals before restoring power.

Technical Specifications

• Gauge: 18 AWG
• Conductors: 6
• Conductor Material: Copper
• Length: 250 feet

Standard Information

• Brand: DIVERSITECH
• Manufacturer Part Number: 620-18-6