Southwire/coleman Cable 55305-04-07 Thermostat Wire 18/5 250ft

Product Description

The SOUTHWIRE/COLEMAN CABLE 55305-04-07 is an 18 AWG, 5-conductor thermostat wire rated at 30 volts maximum, supplied on a 250-foot spool. The wire features solid conductors encased in a brown vinyl jacket, giving it the flexibility needed for low-voltage control wiring in HVAC systems, bell circuits, and intercom installations. The jacketed construction bundles all five conductors in a single run, keeping wiring organized and protected during and after installation. HVAC technicians and low-voltage electricians rely on this wire for reliable signal transmission in residential and light commercial thermostat applications. The solid conductor design maintains stable contact at terminal connections over the service life of the control system.

This wire is suited for residential and light commercial HVAC thermostat wiring, as well as bell and intercom system runs. The 18/5 configuration covers common multi-stage thermostat wiring needs, including heating, cooling, fan, common, and auxiliary or reversing valve conductors. The 250-foot spool length handles typical replacement or new-construction runs without the need for mid-run splices. It is appropriate wherever a low-voltage, jacketed, multi-conductor control wire is specified for indoor applications.

Key Features

• 18 AWG solid conductor construction for stable terminal connections
• 5-conductor configuration suits multi-stage HVAC and thermostat wiring
• 30-volt maximum rating appropriate for standard low-voltage control circuits
• Brown vinyl jacket bundles conductors and protects against abrasion
• 250-foot spool allows continuous runs without mid-run splices
• Compatible with bell and intercom wiring in addition to thermostat applications

Compatibility

Designed as a general-purpose low-voltage control wire for residential and light commercial HVAC thermostat circuits, bell systems, and intercom installations requiring 18 AWG 5-conductor jacketed wire rated to 30 volts maximum.

Installation Notes

Low-voltage thermostat wire is typically installed by licensed HVAC technicians or low-voltage electricians in accordance with NEC Article 725 requirements for Class 2 control wiring. Power down the HVAC system and thermostat before making any wire connections at the control board or thermostat base. Avoid running low-voltage control wire in the same conduit or raceway as line-voltage conductors without appropriate separation. Secure the spool to prevent tangling and ensure clean, kink-free pulls through walls or conduit during installation.