Southwire R20004-1B Cmr CL3R Riser Cable 22 Awg 2C 1000 Ft

Product Description

The SOUTHWIRE R20004-1B is a Type CMR/CL3R multi-conductor unshielded riser cable designed for low-voltage control, signaling, and communications wiring in commercial and residential buildings. Built with two 22 AWG bare stranded copper conductors and rated for 300 volts AC, this cable meets the demands of power-limited remote control and signaling systems governed by NEC Article 725. The gray PVC jacket is riser-rated for vertical runs between floors, and a ripcord is included for fast, clean jacket tear-back without additional cutting tools. This spool ships in a 1000-foot bulk length suited for larger installations.

This cable is used in low-voltage and power-limited systems including Class 2 and Class 3 remote control circuits, signaling circuits, and communications cable applications where CMR or CL3R ratings are required. It is a practical choice for security systems, access control wiring, audio distribution, and general-purpose low-voltage control runs in multi-story commercial buildings and residential construction. Electricians and low-voltage technicians install this cable in riser applications where fire-rated cable is required by code.

Key Features

• Type CMR/CL3R dual rating for riser installations and Class 3 signaling circuits
• Two 22 AWG bare stranded copper conductors for flexibility and conductivity
• 300-volt AC rating suitable for power-limited and control circuit applications
• Ripcord included for simple jacket tear-back and removal without special tools
• Color-coded PVC or polypropylene insulation for conductor identification
• 1000-foot bulk spool length for efficient installation on larger jobs

Compatibility

Designed for use in Class 2 and Class 3 remote control or signaling circuits, and as communications cable where applicable, in systems requiring UL 444-listed riser-rated cable.

Installation Notes

Installation should be performed by a licensed electrician or qualified low-voltage technician in accordance with NEC Article 725 and applicable local codes. De-energize all circuits before making terminations. CMR-rated cable is approved for vertical riser runs between floors but is not rated for use in air-handling spaces, which require CMP-rated plenum cable. Use the built-in ripcord to strip the jacket cleanly rather than scoring with a knife to avoid nicking conductor insulation.

Technical Specifications

• Conductor Size: 22 AWG
• Number of Conductors: 2
• Conductor Type: Bare Stranded Copper
• Voltage Rating: 300 volts AC
• Temperature Rating: 60 degrees F
• Cable Type: Type CMR/CL3R Multi-Conductor Unshielded
• Outside Diameter: 0.127 inches
• Length: 1000 feet
• Color: Gray
• Standard: UL 444
• Series: 31UR
• Country of Origin: USA

Standard Information

• Brand: SOUTHWIRE
• Manufacturer Part Number: R20004-1B