200°C PTFE Ethernet Cable – Custom Length, Industrial Applications

Name: 200°C PTFE Ethernet Cable – Custom Length, Industrial Applications
Rating: 4.5 (10 reviews)

The RS-PTE Series 200°C PTFE Ethernet Cable is Rousheng’s flagship solution for high-temperature industrial data networking. Designed and manufactured to IEC 61156 and MIL-W-16878 dimensional standards, this cable addresses the fundamental limitation of conventional Ethernet cabling — thermal instability above 80°C — by replacing PVC, PE, and LSZH jacket materials entirely with polytetrafluoroethylene, a fluoropolymer renowned for its thermal endurance, chemical inertness, and exceptionally low dielectric constant.

The RS-PTE5e-200 (Cat 5e), RS-PTE6-200 (Cat 6), and RS-PTE6A-200 (Cat 6A) variants are all rated for continuous operation at 200°C and intermittent exposure up to 260°C, while simultaneously remaining flexible at cryogenic temperatures as low as -65°C. This thermal versatility makes the cable equally effective in a paint-cure oven cycling between room temperature and 200°C, or in a cryogenic facility where Ethernet-based instrumentation must function reliably across a 265°C thermal excursion range.

Description

200°C PTFE Ethernet Cable – Custom Length, Industrial Applications

The 200°C PTFE Ethernet Cable is engineered for uncompromising data integrity in extreme-heat environments where standard networking cables fail. Built with a pure polytetrafluoroethylene (PTFE) dielectric and insulation system, this high-temperature Ethernet cable maintains stable signal transmission at continuous operating temperatures up to 200°C — making it the preferred choice for furnace monitoring systems, semiconductor fabrication lines, aerospace test rigs, and other thermally demanding industrial applications. Available in custom cut lengths from 0.5 m to 500 m, each cable is manufactured against IEC 61156 and MIL-spec dimensional standards.

★ Max Temp: 200°C | ★ Cat 5e / Cat 6 Available | ★ Custom Length | ★ UL / CE / RoHS

Product Overview

Attribute	Details
Product Name	200°C PTFE Ethernet Cable
Model Numbers	RS-PTE5e-200 (Cat 5e) \| RS-PTE6-200 (Cat 6) \| RS-PTE6A-200 (Cat 6A)
Cable Category	High-Temperature Industrial Ethernet Cable
Max Operating Temp	200°C (392°F) Continuous
Min Operating Temp	-65°C (−85°F)
Insulation / Jacket	PTFE (Polytetrafluoroethylene) — Primary Insulation & Outer Jacket
Available Standards	Cat 5e (100 MHz) \| Cat 6 (250 MHz) \| Cat 6A (500 MHz)
Custom Length Range	0.5 m – 500 m (cut-to-length upon order)
Certifications	UL Listed \| CE Marked \| RoHS Compliant \| IEC 61156
Application Type	Industrial, Aerospace, Semiconductor, Defense, Energy

Why Choose a PTFE-Insulated Ethernet Cable for High-Temperature Environments?

Standard Cat 5e and Cat 6 Ethernet cables use PVC or LSZH jackets rated to 60–80°C. In process-intensive industrial settings — steelworks, coke ovens, autoclave chambers, or engine test cells — ambient temperatures routinely exceed these limits, causing insulation to soften, deform, or outgas harmful compounds that corrode copper conductors and degrade transmission performance.

PTFE offers a fundamentally different material response. Its carbon-fluorine backbone is among the most thermally stable polymer structures known, allowing this high-temperature network cable to:

Sustain continuous 200°C service without measurable change to dielectric constant (εᵣ ≈ 2.1)
Resist chemical attack from coolants, hydraulic fluids, solvents, and aggressive industrial atmospheres
Maintain low-loss signal characteristics (Cat 6: insertion loss ≤ 23.2 dB/100 m at 100 MHz) across the full temperature range
Pass UL 94 V-0 flame testing, adding inherent fire safety to demanding installations
Withstand repeated thermal cycling between cryogenic cold and process heat without cracking or delamination

The result is a Gigabit-capable Ethernet conductor that stays on-spec where PVC, PE, or even FEP cables reach their operational limits.

Full Technical Specifications

RS-PTE5e-200 | Cat 5e PTFE Ethernet Cable, 200°C

Parameter	Specification
Conductor	Solid or stranded bare copper, AWG 24 (0.20 mm²)
Pair Insulation	PTFE tape-wrapped + extruded PTFE, wall 0.23 mm
Pair Construction	4 individually twisted pairs, lay length 12–38 mm
Overall Shield	Optional: 100% Al-polyester foil + TC braid (≥65% coverage)
Outer Jacket	Extruded PTFE, thickness 0.8 mm, grey or custom RAL
Outer Diameter	~6.2 mm (unshielded) / ~7.4 mm (shielded)
Characteristic Impedance	100 Ω ± 15 Ω
Attenuation at 100 MHz	≤ 22.0 dB / 100 m
NEXT (100 MHz)	≥ 35.3 dB
Bend Radius (fixed)	4× OD
Bend Radius (flex)	8× OD
Operating Temp Range	-65°C to +200°C
Voltage Rating	30 V AC / DC (signal only)
Flame Rating	UL 94 V-0
Weight	~55 kg / km

RS-PTE6-200 | Cat 6 PTFE Ethernet Cable, 200°C

Parameter	Specification
Conductor	Solid bare copper, AWG 23 (0.25 mm²)
Pair Insulation	PTFE extruded, wall 0.28 mm; PP cross-filler separator
Pair Construction	4 pairs with longitudinal spline to maintain geometry
Bandwidth	250 MHz (Gigabit & 2.5 GBase-T capable)
Attenuation at 100 MHz	≤ 19.8 dB / 100 m
NEXT (250 MHz)	≥ 37.1 dB
Return Loss (100 MHz)	≥ 20.1 dB
Outer Jacket	PTFE 0.9 mm, O.D. ~7.1 mm (unshielded)
Operating Temp	-65°C to +200°C
Max Pull Tension	110 N
Crush Resistance	≥ 3000 N / 100 mm

Application Scenarios

This heat-resistant Ethernet cable is specified across a wide range of sectors where thermal exposure, chemical contamination, or electromagnetic interference would compromise ordinary copper data cables:

Industry / Sector	Typical Use Case
Semiconductor Fab	PECVD furnace sensor networks, diffusion furnace monitoring, PLC-to-HMI data links inside process chambers
Steel & Metals	Coke oven instrumentation, electric arc furnace (EAF) automation, rolling mill control networks in high-radiant-heat zones
Aerospace & Defense	Engine test cell data acquisition, avionics bay wiring near heat exchangers, ground support equipment in desert or extreme climates
Energy & Power	Gas turbine control system cabling, nuclear plant instrumentation (Zone 2 hot areas), industrial boiler automation
Automotive OEM	Oven-conveyor network wiring in paint-shop body shops (160–200°C cure ovens), engine dynamometer test rigs
Chemical Processing	Autoclave Ethernet links, reactor vessel instrumentation in corrosive / acidic atmospheres
Food & Pharmaceutical	Sterilization tunnel instrumentation, steam-in-place (SIP) network nodes, aseptic zone sensors
Glass & Ceramics	Kiln monitoring systems, glass tempering furnace data networks requiring tight run-length control

Cable Structure — Layer by Layer

Understanding the internal architecture of this PTFE-insulated industrial Ethernet cable helps engineers confirm compatibility with their installation environment:

Layer 1 — Conductor: Bare or silver-plated copper wire (solid for fixed installation; 7-strand for flex routing). Silver plating is recommended above 150°C to prevent oxidation creep at termination points.

Layer 2 — Primary Insulation: Skived PTFE tape wrapped helically, then sintered, creates a void-free dielectric with εᵣ = 2.1. This low-dielectric value is key to maintaining impedance at elevated temperatures.

Layer 3 — Twisted Pairs: Four precisely twisted pairs (lay lengths tuned per category) reduce cross-talk and ensure NEXT / FEXT compliance at rated bandwidth.

Layer 4 — Pair Separator (Cat 6 / 6A): PTFE or glass-fibre spline keeps pair geometry locked under thermal expansion, protecting impedance uniformity across the full temperature swing.

Layer 5 — Overall Screen (Optional): Aluminised polyester foil (100% coverage) plus tinned-copper braid provides EMI shielding to 60–85 dB. Recommended for installation near inverters, VFDs, or high-current busbars.

Layer 6 — Outer Jacket: Extruded or tape-wrapped PTFE — chemically inert to virtually all industrial solvents, acids, and bases. Smooth surface facilitates clean installation through conduit. Colour coding available on request.

Custom Length Options & How to Order

Every 200°C PTFE Ethernet Cable order is cut and tested to the length you specify. No minimum order quantity applies on standard Cat 5e and Cat 6 variants. Custom Cat 6A and armoured builds require a minimum of 50 m.

Length Range	Tolerances	Lead Time	Packaging
0.5 – 10 m	+0 / −0 cm	3–5 business days	Coiled, bagged
10 – 100 m	+0 / −50 cm	5–7 business days	Drum reel
100 – 500 m	+0 / −1 m	7–14 business days	Plywood reel
500 m + (bulk)	As agreed	14–21 business days	Steel reel / per project

To place an order, please provide:

Cable model (RS-PTE5e-200, RS-PTE6-200, or RS-PTE6A-200)
Required length in metres
Shielded (SF/UTP) or unshielded (U/UTP) configuration
Connector termination requirements (RJ45, M12 D-coded, bare-end)
Quantity and delivery address

PTFE vs. Alternative Cable Insulation — Performance Comparison

Property	PTFE	FEP	PVC	LSZH
Max Cont. Temp	200°C ✓	150°C	70°C	80°C
Chemical Resistance	Excellent ✓	Good	Fair	Fair
Dielectric Constant	2.1 (lowest) ✓	2.1	3.4–5.0	2.8–3.5
Flame Rating	V-0 ✓	V-0	V-0 / V-2	V-0
Cold Flex	-65°C ✓	-65°C	-20°C	-30°C
Signal Loss	Lowest ✓	Low	Higher	Moderate
UV / Ozone Resist.	Excellent ✓	Good	Poor	Moderate

Frequently Asked Questions (FAQ)

Q1: Is this cable compatible with standard RJ45 connectors?

Yes — the outer diameter of RS-PTE5e-200 and RS-PTE6-200 is within standard tooling range (≤ 7.5 mm O.D.). High-temperature RJ45 connectors with metal housings are recommended for terminations exposed to above 85°C ambient. For industrial panel connections, M12 D-coded 4-pin connectors rated to 200°C are available as a factory-fitted option.

Q2: Can I order this cable in non-standard colours for colour-coded installations?

Yes. The PTFE outer jacket can be extruded in custom RAL colours — blue, red, orange, yellow, and white are stock options. Custom colour matching requires a minimum order of 200 m per colour. Colour changes do not affect electrical performance or the temperature rating.

Q3: What is the maximum continuous bandwidth supported at 200°C?

The Cat 5e variant (RS-PTE5e-200) supports 1000BASE-T Gigabit Ethernet (1 Gbps) up to 100 m at full operating temperature. The Cat 6 model supports 1 Gbps to 100 m and 2.5GBASE-T to 100 m at ambient temperature up to 75°C; at 200°C, 1 Gbps over 80 m is verified in our factory test data. For 10GBASE-T requirements at high temperatures, request the Cat 6A variant (RS-PTE6A-200).

Q4: Does the cable require conduit in furnace environments?

PTFE’s self-lubricity makes bare cable installation in metallic conduit straightforward. In direct radiant-heat zones above 180°C, we recommend stainless-steel flexible conduit as a secondary protection. The cable itself does not require conduit for thermal protection — only for mechanical abrasion or chemical-spray environments. Always allow a 25°C service margin below the jacket’s rated temperature.

Q5: Are screened (shielded) versions available, and how does shielding perform at temperature?

Screened variants (model suffix -S) include 100% aluminium-polyester tape plus tinned-copper braid, providing 65–85 dB shielding effectiveness from 1 MHz to 1 GHz. The tinned copper braid retains its solderability and mechanical integrity across the full -65°C to +200°C operating range. A PTFE-insulated drain wire is included for consistent shield grounding.

Q6: How do I specify silver-plated conductors, and when are they necessary?

Silver plating is available as a factory option (model suffix -AG). It is recommended when: (a) terminations will be exposed to temperatures above 150°C during soldering or service, (b) the installation involves repeated thermal cycling above 160°C, or (c) the application environment includes sulphur compounds that could tarnish bare copper. Silver-plated builds carry a modest price premium and a 3–5 day additional lead time.

Q7: What quality testing does each batch undergo?

Each production batch of this PTFE-insulated high-temperature Ethernet cable is subject to: 100% electrical continuity and wire map test; impedance verification (TDR); attenuation and NEXT measurement per IEC 61156-5 or IEC 61156-6; high-voltage dielectric withstand test; dimensional inspection (OD, wall thickness); and a thermal soak at 200°C for 24 hours with post-soak electrical retest. Test reports are available upon request for every shipped reel.

About Rousheng Cable — Manufacturing Credentials

Shanghai Rousheng Wire and Cable Co., Ltd. is headquartered at No. 2591 Fengzhe Road, Fengxian District, Shanghai, China. The company holds ISO 9001 quality management certification, AAA enterprise credit rating, and CE marking for EU market supply. Our engineering team carries an average of 10+ years in specialty cable R&D, and our facility is equipped with full cable lifecycle testing — including thermal cycling chambers, TDR impedance analysers, and IEC-compliant high-voltage test benches.

Rousheng manufactures over 100 specialty cable variants, including ROV umbilical cables, neutral buoyancy subsea cables, high-flex drag-chain cables, and this range of heat-resistant data cables. Our cables are currently deployed in steel mills, automotive paint-shop conveyors, pharmaceutical autoclave networks, and offshore energy installations across Asia, Europe, and the Americas.