APPLICATION:
Our 18/4 Triad (12-Conductor) Shielded TC-ER Instrumentation Cable (600V) issuitable for control, instrumentation and process control circuits, where protection against electrostatic interference from both outside of the cable and from pair to pair is needed. TC-ER Shielded Triads with Overall Shield (STOS) cables are suitable for wet or dry applications, direct burial, indoor or outdoor locations, installed in cable trays, ducts, aerially or conduits and for applications up to 600 volt and temperatures up to 90C. TC-ER SPOS Instrumentation Cables are suitable for use in Class 1 Division 2 Hazardous locations per NEC.

CONDUCTORS:
Stranded soft drawn bare copper conductor, per ASTM B3 & B-8

INSULATION:
Polyvinyl Chloride (PVC) insulation with a nylon overcoat

JACKET:
Polyvinyl Chloride (PVC) jacket, which is water, chemical, sunlight and abrasion resistant

COLOR CODE:
Triads: Black, White and Red Numbered

SHIELD:
Aluminum polyester foil with 100% coverage on each pair, with an overall aluminum polyester foil with 100% coverage with a tinned copper drain wire in contact with all shields

“Consolidate your control runs with one high-performance cableengineered with 4 individually shielded triads and an overall foil shield for maximum signal integrity in complex industrial systems.”

Why Installers Choose 18/4 Triad Cable

This heavy-duty 12-conductor (4-Triad) cable is the industrial standard for multi-point process control. It is specifically designed to handle multiple high-precision signals simultaneously without the risk of “crosstalk” or outside interference.

• Superior Signal Isolation (SPOS): Features 100% aluminum polyester foil shielding on each individual triad plus an overall shield (Shielded Pairs with Overall Shield). This ensures total electrostatic protection from both outside interference and internal pair-to-pair noise.

• Conduit-Free Installation (TC-ER): Rated for Exposed Run (ER), allowing you to bypass expensive conduit and raceways in most industrial environmentssaving you up to 50% on material and labor costs.

• Built for Hazardous Zones: Fully compliant for use in Class 1 Division 2 Hazardous locations per NEC. Its rugged PVC/Nylon construction is resistant to chemicals, abrasion, sunlight, and moisture.

• Beefy 600V Rating: Unlike standard 300V signal wires, this 600V-rated cable can safely occupy the same cable trays as power lines, simplifying your plant layout.

More Common Applications

• Multi-Point Process Control: Ideal for complex PLC/DCS systems where multiple sensors feed back to a single control point.

• Refineries & Chemical Plants: Engineered to resist the oils and solvents common in petrochemical environments.

• Wastewater Treatment: Reliable data transmission for submerged pumps and flow meters in high-moisture zones.

• Power Distribution Centers: Used for multi-zone monitoring in turbines and industrial generator rooms.

All values are nominal and subject to correction