2-Core Plenum Sensor Cable

NTI ENVIROMUX-2W-PLNM: Original 2-Wire Plenum Sensor Cable – Safe, Flexible, Flame-Retardant

Imagine installing a new ENVIROMUX monitoring system in a large open-plan office with suspended ceilings—while complying with strict fire safety regulations.

This is where the NTI ENVIROMUX-2W-PLNM comes in. This original 22 AWG 2-wire plenum sensor cable is specifically approved for use in air-handling spaces (plenum areas) and meets the highest fire protection standards. The twisted bare copper conductors, with white/black color-coded PVC insulation and a gray plenum-rated jacket, ensure interference-free signal transmission and minimal smoke generation in the event of a fire.

Whether connecting temperature sensors, door switches, smoke detectors, or motion sensors to your E-2D, E-5D, or E-16D, this cable provides a reliable, compliant connection up to 305 meters (1,000 ft) long. The result: faster installation, no costly rework required by fire inspectors, and long-term reliability for your monitoring system.

The technical excellence of the ENVIROMUX-2W-PLNM is based on premium materials. The 22 AWG twisted copper conductors reduce electromagnetic interference, ensuring stable signal transmission even over long distances. The plenum-grade PVC jacket is halogen-free, flame-retardant, and produces minimal smoke—ideal for installation in ceilings, ventilation ducts, or cable trays within office buildings, data centers, or public facilities.

Picture this scenario: in a modern data center, a door sensor on a server rack must trigger an ENVIROMUX alarm if opened without authorization. The 25‑foot cable is routed through the ceiling plenum space—no additional fire collars or special approvals needed. The technician connects it within minutes, tests the setup, and the system runs flawlessly. This simple, standards-compliant solution not only saves installation costs but also boosts operational safety—no cable failures, no inspection issues—just efficient performance.

Durable by design, the cable operates reliably at temperatures from −10 to +75 °C and is RoHS‑compliant—a clear mark of environmental responsibility and NTI‑grade quality.

Available in practical lengths from 3 to 1,000 ft (1 to 305 m), it adapts to any installation size—from small server rooms to large industrial facilities.

In a real-world application: an IT service provider in Munich upgraded an entire office building with ENVIROMUX‑16D units. Over 200 meters of plenum cable connected 40 dry‑contact sensors (doors, windows, smoke) through the suspended ceiling. The fire safety inspection passed without issue, commissioning took one day, and the system has been running for over two years without a single wiring fault. Success stories like this show that the ENVIROMUX‑2W‑PLNM is more than just a cable—it’s the foundation of a secure, future‑proof monitoring infrastructure that pays for itself quickly.

Technical Highlights

• Plenum‑rated: Meets the strictest fire‑safety standards for air‑handling spaces—no additional protection required.
• 22 AWG twisted pair: Bare copper conductors for minimal interference, ideal for dry‑contact sensors up to 305 m (1,000 ft).
• Color‑coded: White and black wires for quick, error‑free wiring.
• Temperature range: −10 to +75 °C – suitable for server rooms, offices, and industrial environments.
• RoHS‑compliant: Environmentally safe, durable, and future‑ready.

Applications and Real‑World Examples

This cable is the first choice for professional ENVIROMUX installations in plenum‑rated spaces. Typical applications include:

• Data centers & server rooms: Routing door/window sensors through ceiling voids. Example: 100 m cable, no fire collars required—inspection passed in 30 minutes.
• Office buildings & open‑plan areas: Smoke and motion sensors in suspended ceilings. Example: 50 m per floor—uniform color coding, zero wiring errors.
• Public facilities: Schools or hospitals with strict fire codes. Example: 300 m through air ducts—fire inspectors commend the plenum‑grade material.
• Industrial use: Machine monitoring with dry‑contact signals. Example: 10 m cable to emergency stop sensor—stable signal even under vibration.
• Building upgrades: Retrofit projects without structural changes. Example: 25 m through an existing duct—ENVIROMUX system operational within 2 hours.

With lengths from 3 to 1,000 ft, the ENVIROMUX‑2W‑PLNM covers any project size. The gray jacket blends discreetly into any environment, and the flexible structure simplifies installation even in tight conduit paths.

Installation? Effortless. Simply strip the wire, insert it into the ENVIROMUX screw terminals, and you’re done. No soldering, no special tools required. The color‑coded insulation prevents wiring mistakes, and the strong tensile design protects the cable during pulling.

The NTI ENVIROMUX‑2W‑PLNM is the original plenum‑rated sensor cable trusted by professionals—safe, compliant, and built to last. The smart foundation for every ENVIROMUX installation.