Crestron CRESNET-P-BK-SP500 – Cresnet Control Cable, Plenum-Rated, Black, 500 ft Spool

Product Overview

The Crestron CRESNET-P-BK-SP500 is a 500-foot (152 m) spool of plenum-rated Cresnet control cable in black jacket, designed for use in air-handling spaces in commercial and institutional building installations. Cresnet is Crestron’s proprietary 4-conductor control network cable that connects Cresnet-compatible keypads, sensors, thermostats, and modules to a Crestron control processor. The plenum rating qualifies this cable for installation in air-handling ceilings and HVAC plenums per applicable fire and building codes.

Product Description

Cresnet cable provides the wired communication and power distribution backbone for Crestron control systems. The four conductors carry +24VDC power, ground, and the two-wire Cresnet data bus that links up to 253 addressable devices per network. Plenum-rated cable (CMP-rated) is required by the NEC and local building codes when cable is routed through air-handling spaces—including suspended ceiling plenums, raised access floors used for HVAC return air, and dedicated air-handling shafts. The CRESNET-P-BK-SP500 provides 500 feet of cable on a spool convenient for pull-through installation in commercial projects. The black jacket matches standard black cable infrastructure and is appropriate for installations where jacket color is specified for system identification. Sold by the spool; specify additional spools for larger projects or purchase CRESNET-P-BK-SP1000 for 1000-foot runs.

Key Features

• Plenum-rated (CMP) Cresnet control cable for air-handling space installations
• Black jacket for system identification and infrastructure color coding
• 500-foot (152 m) spool for commercial pull-through installation
• 4-conductor: +24VDC power, ground, and 2-wire Cresnet data bus
• Supports up to 253 Cresnet-addressable devices per network
• Compatible with all Cresnet-enabled Crestron keypads, sensors, and modules

Typical Applications

• Commercial AV integration requiring plenum-rated cable in suspended ceiling spaces
• Office building automation wiring in air-handling ceiling plenums
• Healthcare, education, and institutional projects with strict plenum cable requirements
• Any installation where NEC or local code mandates CMP-rated wiring in plenums

Technical Specifications

• Model: CRESNET-P-BK-SP500
• Cable Type: Cresnet, 4-conductor
• Rating: Plenum (CMP)
• Jacket Color: Black
• Length: 500 ft (152 m) spool
• Conductors: 4 (+24VDC, GND, NET+, NET-)

Frequently Asked Questions

Q: When is plenum-rated Cresnet cable required?
A: Plenum-rated cable is required by the NEC and local building codes whenever cable is installed in air-handling spaces, including suspended ceiling return-air plenums. Non-plenum (NP) cable may not be used in those spaces.

Q: What is the difference between CRESNET-P-BK-SP500 and CRESNET-NP-WH-SP1000?
A: CRESNET-P-BK-SP500 is plenum-rated and black, in a 500-ft spool. CRESNET-NP-WH-SP1000 is non-plenum (riser-rated), white, on a 1000-ft spool. Use plenum-rated cable in air-handling spaces and non-plenum in riser/conduit runs.

Q: Can CRESNET-P-BK-SP500 be used on the same Cresnet network as non-plenum Cresnet cable?
A: Yes. Cresnet cable type (plenum vs. non-plenum) is a physical installation rating, not a system compatibility issue. Both cable types carry the same Cresnet signals and can be part of the same network homerun.