Building Automation Pair Stranded Cables

Summary: Pair Stranded Cables

Building Automation SmartWire for Commercial and Industrial Projects

Windy City Wire supplies low-voltage SmartWire® cable designed for building automation and control systems in commercial and industrial environments. From HVAC control loops and equipment interlocks to sensors, actuators, and power-limited control circuits, our twisted-pair constructions provide consistent performance, clear identification options, and dependable availability to keep projects on schedule. As a manufacturer, we focus on products and solutions that simplify installation, reduce labor, and help standardize your BAS work across sites and crews.

How our SmartWire adds value to your next BAS project

• Installation efficiency: Factory-applied SmartWire Glide lubrication reduces pulling friction by up to 70%, helping crews pull faster with fewer re-pulls and less conduit wear.
• Measurable jobsite control: FastFIND Footage Markers appear every two feet, making it easy to verify total footage, calculate point-to-point runs, track remaining cable, and reduce leftover scrap by 15–25%.
• Performance for control circuits: Twisted, unshielded pairs support stable analog and digital control signaling over typical BAS distances, with 600 V rated THHN/TFFN insulation to meet common installation requirements.
• Standardization and identification: A wide range of jacket and stripe color combinations helps teams maintain consistent standards across buildings and trades for quicker terminations and troubleshooting.
• U.S.-manufactured SmartWire: Reliable lead times, uniform quality, and options to customize jacket and stripe colors to your organization’s specifications.

At-a-glance options for Building Automation

• Available AWGs: 14, 16, 18
• Available lengths: 1000 FT, 2500 FT
• Shielding: Non-shielded (twisted pair)
• Insulations: THHN, TFFN
• Typical applications: BAS/HVAC controls, power-limited control circuits, equipment interlocks, sensors and actuators, terminal-to-field device runs

SmartWire jacket colors and stripes

Standard color combinations help identify systems, zones, and signal types. Common options include:

• Black/Red
• Orange/Gray
• Blue/Orange
• Purple/Gray
• Black/White
• Black/Blue
• Purple/Yellow
• Orange/Yellow
• Blue/Yellow
• Black/Brown
• Red/Yellow
• Black/Orange
• Black/Violet
• Black/Yellow

Need a specific standard across your portfolio? Ask about customizing SmartWire jacket and stripe colors to align with your organization’s labeling and documentation practices.

Available constructions

1. 14 AWG 1 Pair Stranded THHN 600 Volt: Twisted, unshielded control pair for robust BAS control and interlock runs where THHN insulation and a 600 V rating are specified. Suitable for longer control circuits and devices drawing slightly higher current.
2. 16 AWG 1 Pair Stranded TFFN 600 Volt: Twisted, unshielded pair for general BAS control wiring with a compact TFFN profile. Balances flexibility with durable insulation for everyday field pulls and terminations.
3. 18 AWG 1 Pair Stranded (7 Strand) TFFN 600 Volt: Twisted, unshielded 7-strand construction for flexible routing to sensors and actuators. Ideal for frequent terminations in panels and devices where space and bend radius matter.

Why teams standardize on SmartWire for BAS

• Low-voltage constructions engineered for commercial and industrial environments
• Consistent, repeatable performance across sites and phases of work
• Time savings in layout, pulling, measurement, and material management
• Broad stocking options and the ability to align color standards with your documentation

Plan your next project with confidence

Partner with Windy City Wire to specify SmartWire for your building automation scope. Our team can help you align AWG size, insulation, color standards, and length options with your installation practices so field crews stay productive from rough-in through commissioning.

Solutions: Pair Stranded Cables

Building Automation Pair Stranded Cables from Windy City Wire are designed for reliable, low-voltage control and signal circuits in commercial and industrial environments. These unshielded, twisted 1-pair constructions are available in multiple AWGs and insulation types to support common building automation tasks where clear signals, durable insulation, and straightforward installation are key. The 600-volt rating and stranded conductors make these pairs a strong fit for raceway installations and panel work across new construction, renovations, and service projects.

Where these cables are used

• HVAC and Building Automation Controls: Thermostat loops, temperature/humidity/pressure sensors, damper and valve actuators, VAV and terminal unit controls, economizers, boiler/chiller enable circuits, rooftop unit interlocks, and fan coil starts/stops.
• Lighting Control: 0–10V dimming leads, low-voltage relay and contact-closure circuits, daylighting sensor runs, and control station tie-ins.
• Access and Door Control Power/Signaling: Relay and contact circuits for strikes and mag locks, request-to-exit devices, and door position/monitoring (non-fire alarm).
• Industrial and Utility Controls: PLC I/O control wiring, pump and motor interlocks, process sensor loops (such as 4–20 mA and 0–10V), and panel-to-field device connections.
• Energy Management and Monitoring: Submeter pulse circuits, kWh and demand monitoring tie-ins, and load-shedding contact closures.

Industries and facilities that benefit

• Office towers and corporate campuses
• Healthcare and laboratories
• Higher education and K–12
• Hospitality, entertainment, and venues
• Manufacturing, warehousing, and logistics
• Data centers and technology facilities
• Retail, mixed-use, and government buildings

Why contractors and integrators choose this category

• Twisted, unshielded 1-pair design supports clean analog and digital control signals while keeping pulls simple and terminations quick.
• Stranded conductors provide flexibility for tight bends, devices, and dense panels.
• 600V rated THHN/TFFN insulation allows broad use in building raceways; suitable for many control circuits where a robust thermoplastic nylon-jacketed insulation is preferred.
• Multiple AWG choices (14, 16, 18) help you match conductor size to run length and load to manage voltage drop and device requirements.
• Color options support clear circuit identification and streamlined troubleshooting across large projects.
• Available lengths in 1000 and 2500 feet help align material planning with project scale and pull lengths.

Common devices and endpoints

• Thermostats, temperature/humidity/pressure sensors, and transducers
• Damper and valve actuators, relay modules, and control panels
• VFD start/stop and speed reference (as applicable to control interface)
• Lighting control modules, dimming interfaces, and daylight sensors
• Door hardware power/control circuits and monitoring contacts (non-fire alarm)

Choosing the right construction

• Gauge selection (14/16/18 AWG): Use larger gauges for longer runs or higher device current; 18 AWG is common for many sensor and control loops, while 16 and 14 AWG provide added capacity or lower voltage drop over distance.
• Insulation type: THHN provides robust building wire performance in raceways; TFFN’s compact profile is often useful in fixtures and control panels where space is tight.
• Signal environment: These are non-shielded twisted pairs. The twist helps with noise rejection in typical building environments. In areas with high EMI or for sensitive comm links, consider a shielded alternative.

Design and compliance notes

• Use in accordance with applicable codes and standards; confirm requirements for Class 1, 2, or 3 circuits and verify when 600V building wire is appropriate.
• Not intended to replace dedicated, listed fire alarm or life-safety cables where those are required.
• Twisted pairs are a practical choice for low-voltage analog signals (0–10V, 4–20 mA) and dry contacts commonly found in BAS and lighting control.

Project advantages

• Standardization across sites with consistent color combinations for fast identification
• Fewer change orders and easier as-built documentation when control circuits follow a simple 1-pair convention
• Efficient installation in conduit and panels thanks to flexible stranded conductors and compact diameters

From controls contractors and electricians to facility teams and panel shops, these Building Automation Pair Stranded Cables provide a dependable, code-conscious way to connect sensors, actuators, relays, and control modules throughout the built environment.

Frequently Asked Questions: Pair Stranded Cables

• What AWG conductors are available with these SmartWire Building Automation Pair Stranded cables?

  Available gauges include 14 AWG, 16 AWG, and 18 AWG in 1‑pair stranded constructions.

• What other colors are these SmartWire Building Automation Pair Stranded cables available in?

  Available conductor jacket color combinations: Black/Red, Orange/Gray, Blue/Orange, Purple/Gray, Black/White, Black/Blue, Purple/Yellow, Orange/Yellow, Blue/Yellow, Black/Brown, Red/Yellow, Black/Orange, Black/Violet, Black/Yellow.

• Are these SmartWire Building Automation Pair Stranded cables made with solid or stranded copper conductors?

  Stranded copper conductors. These are 1‑pair twisted, unshielded constructions designed for flexible installation and reliable control performance.

• What lengths are these SmartWire Building Automation Pair Stranded cables sold in?

  We manufacture and stock SmartWire Building Wire in 1,000 ft length as our standard. Select items are also available in 2,500 ft lengths.

• Is SmartWire Building Automation Pair Stranded Cables wet rated?

  Yes. Our THHN SmartWire cable is dual rated THHN/THWN for use in wet locations. (TFFN constructions are intended for dry locations.)

• Is SmartWire Building Automation Pair Stranded Cables 600V rated?

  Yes. These 1‑pair stranded THHN and TFFN cables are rated 600 Volts.

• What is difference between TFFN, TFN, and THHN ratings on SmartWire cables?

  - TFFN: Thermoplastic Flexible Fixture Nylon. Stranded conductor for flexibility; nylon jacket; 90°C dry; 600V; typically for dry locations.
  - TFN: Thermoplastic Fixture Nylon. Similar to TFFN but typically with a solid conductor; 90°C dry; 600V; used where flexibility is not required.
  - THHN: Thermoplastic High Heat‑resistant Nylon. 90°C dry; 600V; often dual‑rated THHN/THWN for wet locations (75°C). Common for building wire, feeders, branch circuits, and controls.

• Is SmartWire Building Wire Gas and Oil resistant?

  Yes. Our SmartWire Building Wire cables are GRII (Gasoline and Oil Resistant II) rated, offering enhanced resistance to oils, fuels, and common industrial chemicals—helping preserve jacket integrity, extend service life, and reduce maintenance in demanding environments.

• Do you offer SmartWire Building Wire in twisted pairs?

  Yes. This category features 1‑pair twisted, stranded, unshielded constructions in multiple gauges and insulation types (THHN and TFFN) tailored for building automation and control applications.

• How is your SmartWire Building Wire cable sold on spools or in boxes?

  Our SmartWire Building Wire is packaged in our patented RackPack carton for efficient, professional pulls on the jobsite. Learn more about our RackPack: https://windycitywire.com/solutions/rackpack-overview

Additional Links:

• Learn more about our SmartWire Cable
• The RackPack - Our patented cable delivery solution
• Our Transporters - RackPack Transportation Devices
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