6XV1871-5TH20 FC TP Cable, SIEMENS SIMATIC NET PROFIBUS FastConnect Industrial Ethernet Cable

Siemens 6XV1871-5TH20 cable

PROFIBUS PA bus cable

Shielded twisted pair STP

6XV1871-5TH20

Siemens 6XV1871-5TH20 PROFIBUS PA bus cable utilizes Shielded twisted pair (STP) design for robust industrial communication and interference resistance.

Specification

SEODescription

The Siemens 6XV1871-5TH20 cable is a robust PROFIBUS PA bus cable designed for reliable data transmission in industrial automation systems. Featuring a shielded twisted pair (STP) configuration with double-layer shielding (foil and braid), it ensures high immunity to electromagnetic interference, making it ideal for harsh environments. This cable supports PROFIBUS PA networks, directly connecting field devices like sensors and actuators in process industries such as chemical, oil and gas, and water treatment. It operates within a voltage range of 30 V DC and a temperature range of -30°C to +70°C, with a characteristic impedance of 150 Ω. The 0.64 mm² copper conductors and flame-retardant PVC/PUR jacket enhance durability and safety. While its rugged design ensures long-term stability, the cable’s stiffness may complicate installation in tight spaces. Its compliance with IEC 61158-2 standards guarantees seamless integration with PROFIBUS PA systems, though proper grounding of the STP shield is critical to avoid signal degradation.

SEOSpecification

Parameter	Specification
Cable Type	Siemens 6XV1871-5TH20 cable
Application	PROFIBUS PA bus cable for field communication
Conductor Material	Bare copper, twisted pair
Insulation	PE (Polyethylene)
Shielding	Shielded twisted pair (STP) with aluminum foil + tinned copper braid
Impedance	150 Ω ±10% at 31.25 kHz
Capacitance	≤52 nF/km (conductor-conductor)
Temperature Range	-40°C to +80°C (fixed installation)
Voltage Rating	300 V AC (50 Hz)
Outer Diameter	Approx. 10.5 mm
Flame Resistance	Complies with IEC 60332-1-2

SEOQandA

question:Can the company provide technical selection services?
answer:Yes, we offer comprehensive technical selection support to meet your project requirements.
question:Can the company provide upgraded or alternative models?
answer:Yes, we supply upgraded models and alternative solutions based on availability and compatibility.
question:What shipping methods do you support?
answer:We support DHL, Fedex, UPS, and other major shipping methods for global delivery.

SEOQandA_Product

question:Why does the PROFIBUS network experience intermittent communication failures when using 6XV1871-5TH20?
answer:Electromagnetic interference (EMI) from nearby motors or cables may disrupt signals. Ensure proper shielding grounding, separate from power cables, and use repeaters if needed.
question:What causes signal degradation over long distances with 6XV1871-5TH20?
answer:Exceeding maximum segment length (100m at 12Mbps). Add repeaters or fiber-optic converters to extend range and maintain signal integrity.
question:Why does the PROFIBUS network show high error rates after installation?
answer:Loose connectors or incorrect termination. Check all connectors are securely fastened and verify terminal resistors (220Ω) at both ends of the bus.
question:How to resolve physical damage to 6XV1871-5TH20 in harsh environments?
answer:Use protective conduits in high-traffic areas, avoid sharp bends, and inspect regularly. Replace damaged sections immediately.
question:Why does 6XV1871-5TH20 performance drop in extreme temperatures?
answer:Operating outside -30°C to 70°C range. Install thermal insulation or use specialized cables rated for wider temperature ranges.