Plenum Cable

Plenum cable is cable designed for use in plenum-rated spaces, which are areas of a building used for air circulation. These spaces may include air-handling areas above ceilings, below floors, or within building pathways where cable jacket performance is important.

Plenum cable is commonly used for communication, data, fire alarm, security, intercom, telephone, control, alarm, and low-voltage applications.

Plenum cable is used for wiring applications in plenum-rated building spaces where the cable must meet specific fire and smoke performance requirements. Common uses include fire alarm systems, burglar alarms, smoke detection systems, voice and digital communications, intercom systems, computer interfaces, energy management systems, remote controls, telephone systems, and other low-voltage building systems.

The correct cable depends on the application, rating, conductor count, shielding, voltage, and installation requirements.

CMP stands for communications multipurpose plenum. CMP-rated cable is commonly used for communication and low-voltage applications in plenum spaces where a plenum rating is required.

CMP plenum cable may be available in shielded, unshielded, multi-conductor, multi-paired, individually shielded, or overall shielded constructions depending on the application and project specification.

FPLP stands for fire power-limited plenum. It is commonly used for fire alarm, smoke detection, protective signaling, voice communication, and related power-limited fire alarm circuits in plenum-rated spaces.

FPLP cable may be available in shielded or unshielded constructions, including NYC certified fire alarm cable options where required by the project.

Shielded plenum cable includes a shielding layer that helps protect signal quality in areas where electrical noise or interference may be present. It is often used for communication, alarm, control, intercom, telephone, and signal applications near electrical equipment or other sources of interference.

Unshielded plenum cable may be appropriate for applications where interference is less of a concern. The right choice depends on the system, signal type, installation environment, and project requirements.