Thermostat Wire

Cerrowire thermostat wire is a Class 2 power-limited cable specifically designed for low voltage control applications in heating, cooling, and HVAC systems. Ideal for powering and connecting thermostats, this durable copper wire ensures reliable signal transmission for residential, commercial, and light industrial HVAC installations. Engineered to operate at voltages not exceeding 150V, the cable provides a safe and dependable solution when installed in compliance with the National Electrical Code® (NEC Article 725) and all other applicable standards.

Beyond thermostat controls, this versatile wire is also commonly used in bell circuits, alarm systems, intercom systems, and low voltage communications equipment, making it a multi-purpose solution for contractors who want to reduce material handling while ensuring consistent performance. With solid 18 AWG copper conductors and PVC insulation, Cerrowire thermostat wire delivers excellent conductivity, flame resistance, and long-term reliability in demanding environments.

Designed for convenience, the wire’s brown PVC jacket and color-coded conductor options (2, 3, 5, or 7 conductors) simplify installation and identification on the job site. Whether running control wiring for a new HVAC system, upgrading a commercial heating and cooling installation, or integrating with residential alarm and security systems, Cerrowire’s UL-listed CL2R and CMR thermostat cable provides the durability, safety, and compliance required by today’s building codes.

For electricians, contractors, and HVAC professionals, Cerrowire thermostat wire represents the ideal balance of code compliance, cost efficiency, and dependable performance, making it the preferred choice for large-scale projects and routine service work alike.