ITC/PLTC 105°C PVC Instrumentation Cable

What is ITC/PLTC 105°C PVC Instrumentation Cable?

The ITC/PLTC 105°C PVC cable is a 300V power-limited tray and instrumentation tray cable featuring Class B 7-stranded plain annealed copper conductors, heat-resistant PVC insulation, individual and overall aluminum/polyester shielding tapes with tinned copper drain wires, a dedicated 22 AWG copper communication wire, and a heavy-duty PVC outer sheath complying with UL 13, UL 2250, and UL 1685 standards. It is designed for fixed wiring, cable tray routing, raceways, and direct underground burial in process plants, petrochemical facilities, and automated industrial plants.

Engineered to deliver clean signal transmission in environments with severe electrical noise and mechanical hazards, this cable incorporates individual pair/triad shielding to suppress cross-talk between adjacent circuits and a collective shield to neutralize external electromagnetic interference (EMI). The rugged 105°C-rated PVC outer compound provides resistance to mineral oils per ASTM No. 2 oil immersion testing and self-extinguishing flame retardancy under vertical tray burn tests, ensuring reliable telemetry and signal continuity across industrial installations.

ITC/PLTC 105°C PVC Instrumentation Cable Construction

• Conductor: 7-stranded plain annealed copper conductors per ASTM B-3 and ASTM B-8 delivering low conductor resistance and dependable termination stability.
• Insulation: Heat-resistant Polyvinyl Chloride (PVC) compound rated for continuous operation at 105°C per UL 1581 and EN 50363-3 T13.
• Individual Shield: Aluminum tape with a continuous tinned copper drain wire applied over each pair or triad to eliminate internal circuit-to-circuit cross-talk.
• Separator: Polyester tape applied over shielded core assemblies to preserve core layout and improve mechanical flexibility.
• Overall Shield: Collective aluminum tape with a continuous tinned copper drain wire providing complete electrostatic coverage against external electromagnetic noise.
• Communication Wire: 22 AWG stranded plain annealed copper conductor with orange PVC insulation for site voice and calibration communications.
• Outer Sheath: Specially formulated industrial-grade Polyvinyl Chloride (PVC) compound resistant to sunlight and oil, flame retardant per UL 1685 and IEC 60332-3-22 Cat A.
• Core Identification: Pairs: Black and White with numerical printing; Triads: Black, White with numerical printing, and Red.
• Sheath Colour: Black (standard industrial) or Blue (for intrinsically safe circuits).

Applications

ITC/PLTC 105°C PVC cables are specifically engineered for interconnecting field transmitters, transducers, RTDs, flowmeters, and Distributed Control Systems (DCS) across heavy industrial process facilities where tray placement or direct burial is required. Their dual-shield construction and oil-resistant jacket make them suitable for Class I Division 2 hazardous locations, industrial cable trays, raceways, conduits, and outdoor applications.

Typical installation environments include:

• Cable Trays & Raceways: Power-limited tray cabling (PLTC) in industrial control galleries complying with UL 1685 vertical tray flame tests.
• Direct Burial Installations: Direct underground burial for configurations with three or more conductors of 20 AWG or larger.
• Petrochemical & Refining Facilities: Analog 4-20mA instrumentation loops and telemetry circuits in environments exposed to industrial coolants and ASTM No. 2 oils.
• Intrinsically Safe Circuits: Connecting low-energy monitoring devices in hazardous operational zones using blue-jacketed variants.

Specifications & Dimensions

The ITC/PLTC 105°C PVC cable portfolio encompasses multi-pair configurations from 2 pairs up to 50 pairs (2P–50P) and multi-triad configurations from 2 triads up to 50 triads (2T–50T) across conductor sizes 20 AWG, 18 AWG, 16 AWG, and 14 AWG. Operating at a rated voltage of 300V with core-to-core and core-to-screen dielectric test voltages of 1500V, the cable supports fixed ambient temperatures from -40°C to +105°C and installation temperatures from -5°C to +50°C while maintaining a minimum bending radius of 7.5× overall diameter. Conductor DC resistance values at 20°C span from 10.92 Ω/kft (20 AWG) down to 2.71 Ω/kft (14 AWG), nominal capacitance at 800 Hz is 51.8 pF/ft across all sizes, and minimum insulation resistance at 15.6°C exceeds 100.1 MΩ·kft, with all dimensional tolerances strictly aligned with UL 13 and UL 2250 standards.

Standards

Huadong Cable Group manufactures and factory-inspects ITC/PLTC 105°C PVC instrumentation cables to guarantee complete compliance with North American and international safety standards:

Design & Material Standards: UL 13 (PLTC), UL 2250 (ITC), ASTM B-3, ASTM B-8, UL 1581 Class 105°C, EN 50363-3 T13
Flame Retardancy: UL 1685 (Vertical Tray), UL 13 (VW-1), IEC/EN 60332-1, IEC 60332-3-22 (Cat A), EN 50266-2-2
Oil & Environmental Resistance: ASTM No. 2 oil immersion at 70°C for 4 hours (ICEA S-73-532), Sunlight Resistant
Voltage Rating (Uo/U): 300V (Test Voltage: Core-Core 1500V, Core-Screen 1500V)
Temperature Spectrum: Fixed: -40°C to +105°C; During Installation: -5°C to +50°C
Regulatory Compliance: RoHS Directive 2015/65/EU, REACH Directive EC 1907/2006

Frequently Asked Questions

Q: What is the operational distinction between ITC (Instrumentation Tray Cable) and PLTC (Power-Limited Tray Cable)?
A: PLTC cables are rated under NEC Article 725 for Class 2 and Class 3 power-limited remote-control, signaling, and fire alarm circuits up to 300V, whereas ITC cables are governed by NEC Article 727 and allow industrial instrumentation circuits up to 300V and 5 amps in cable trays and raceways without conduit protection.

Q: Which configurations of this ITC/PLTC cable are rated for direct underground burial?
A: Constructions featuring heat-resistant PVC/PVC compounds that have three or more conductors and are sized 20 AWG or larger are rated and suitable for direct burial installations.

Q: What is the purpose of the 22 AWG orange communication wire integrated into the cable bundle?
A: The insulated 22 AWG orange copper wire provides a voice and telemetry communication channel for technicians during field equipment commissioning, line calibration, and loop testing between the field device and the control room.

Q: What payment terms does Huadong Cable accept for international industrial export orders?
A: We accept standard international commercial payment terms including Telegraphic Transfer (T/T) and 100% Irrevocable Letter of Credit (L/C) at sight for engineering contractors, system integrators, and industrial equipment builders.

ITC/PLTC 105°C PVC Instrumentation Cable- Why Choose Huadong ?

Huadong Cable Group manufactures ITC/PLTC 105°C PVC instrumentation cables in strict adherence to UL 13, UL 2250, and UL 1685 vertical tray flame standards, backed by certified IEC 60332-3-22 Cat A combustion performance verifications. Utilizing Class B 7-stranded plain annealed copper conductors drawn from high-purity oxygen-free copper rods, our automated lines apply heat-stabilized PVC insulation to maintain electrical stability and insulation resistance exceeding 100.1 MΩ·kft at 105°C continuous rating. Combined with individual pair/triad aluminum shielding tapes, continuous tinned copper drain wires, a collective overall shield, and an ASTM No. 2 oil-resistant PVC outer jacket, our cables deliver complete signal accuracy and mechanical protection in harsh industrial tray environments.

With more than 20 years of precision cable engineering expertise, Huadong Cable Group operates advanced multi-pair cabling, metallic taping, and polymer extrusion facilities certified to ISO 9001, RoHS, and REACH protocols. By supplying directly from our manufacturing base, we offer competitive direct factory pricing, 100% Mill Test Certificates (MTC) tested in accredited testing facilities, customized continuous drum lengths packaged on ISPM 15 heat-treated export wooden reels, and seamless door-to-port logistics for EPC contractors and industrial processing builders worldwide.