West Penn Wire D25222PWH1000 RS-485 Cable 22 Awg 1000 Ft

Product Description

The WEST PENN WIRE D25222PWH1000 is a 2-pair, 22 AWG RS-485 communication cable rated CMP (plenum) for use in commercial and residential low-voltage data and control wiring applications. CMP plenum-rated jacketing meets the fire and smoke performance requirements for installation in air-handling spaces, making it a common choice where code restricts non-plenum cable. The 22 AWG conductors support reliable RS-485 differential signaling over the full 1000-foot spool length. This cable is installed by licensed electricians, low-voltage contractors, and control systems technicians working on building automation, HVAC controls, and similar networked systems.

This cable is suited for RS-485 serial communication runs in commercial buildings, light industrial facilities, and multi-zone HVAC control systems. It is commonly used to connect thermostats, sensors, variable frequency drives, and other RS-485 devices to controllers or gateways. The plenum rating makes it appropriate for above-ceiling or raised-floor air-handling spaces where standard CMR or CM cable is not permitted by code. The 1000-foot spool allows installers to make multiple runs from a single pull.

Key Features

• CMP plenum-rated jacket meets fire and smoke requirements for air-handling spaces
• 2-pair configuration supports RS-485 differential data and control signaling
• 22 AWG conductors balance signal integrity and flexibility for long runs
• 1000-foot spool minimizes splices on large commercial installations
• Designed for low-voltage multimedia and building automation cable applications

Compatibility

Designed as a plenum-rated RS-485 communication cable for use with RS-485-compatible controllers, sensors, thermostats, and building automation devices in low-voltage control and data wiring systems.

Installation Notes

Installation should be performed by a licensed electrician or certified low-voltage contractor in accordance with NEC Article 800 and applicable local codes. De-energize all connected control equipment before making terminations. Maintain consistent polarity on the RS-485 differential pairs throughout the run and avoid routing parallel to high-voltage power conductors to reduce interference. Verify that the installed environment qualifies for CMP-rated cable per local authority having jurisdiction before pulling wire in plenum spaces.