Southwire 16-2SP Shielded Plenum Thermostat Wire 16AWG 2C

Product Description

The SOUTHWIRE 16-2SP is a shielded plenum-rated thermostat wire supplied on a 1000-foot reel. This 16 AWG, 2-conductor cable is engineered for low-voltage control wiring in HVAC systems where the cable must run through air-handling spaces. The plenum rating means the jacket meets the smoke and flame requirements for use in air plenums and ducts without requiring conduit. Licensed HVAC technicians and controls contractors install this wire for thermostat, zone control, and building automation applications.

This cable is suited for residential and light commercial HVAC installations where low-voltage thermostat or control signal wiring must pass through plenum spaces, such as above drop ceilings or inside supply and return air ducts. The shielded construction helps reduce electromagnetic interference, making it appropriate for environments with nearby electrical runs or sensitive control equipment. The 1000-foot reel format supports larger projects and reduces the need for splices across long runs.

Key Features

• Plenum-rated jacket approved for installation in air-handling spaces without conduit
• Shielded construction reduces electromagnetic and radio frequency interference on control signals
• 16 AWG, 2-conductor configuration for standard low-voltage thermostat and control wiring
• 1000-foot reel minimizes splices on large or multi-zone installations
• Designed for low-voltage HVAC control circuits including thermostat and zone valve wiring

Compatibility

Designed as a standard low-voltage shielded plenum thermostat wire for use with residential and commercial HVAC control systems requiring 16 AWG 2-conductor cabling in plenum-rated applications.

Installation Notes

Installation should be performed by a licensed HVAC technician or low-voltage controls contractor in accordance with applicable local codes and NEC Article 800 or 725 requirements for low-voltage control wiring. Power down the HVAC system and thermostat circuit before making any connections. When routing through plenum spaces, verify the plenum rating is acceptable to the local authority having jurisdiction before pulling the cable. Secure the drain wire of the shield to a common ground point at one end only to avoid ground loops.

Technical Specifications

• Wire Gauge: 16 AWG
• Number of Conductors: 2
• Cable Length: 1000 feet
• Shielding: Yes
• Plenum Rated: Yes
• Application: Low-voltage HVAC thermostat and control wiring

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: 16-2SP