Belden 3108A Modbus Cable | RS-485 3-Pair 22AWG Cable

Introduction to Belden 3108A Modbus Cable | RS-485 3-Pair 22AWG Cable

The Belden 3108A cable is an RS-485 3-pair 22AWG cable designed for data transmission in industrial and harsh environments. Featuring tinned copper conductors, polyethylene (PE) insulation, and a composite shielding (Beldfoil + 65% TC Braid), this cable ensures stable performance and resistance to noise. Its oil-resistant PVC jacket makes it ideal for industrial applications.

Features of Belden 3108A Modbus Cable

Cable Type: RS-485, 3 pairs

Conductor: Tinned copper, 7×30 construction

Insulation: Polyethylene (PE) with 0.023-inch thickness

Shielding: Aluminum foil + 65% tinned copper braid

Outer Jacket: Oil-resistant PVC

Rated Voltage: 300V

Environmental Resistance: Suitable for industrial environments, resistant to oil and UV exposure

Technical Specifications of Belden 3108A Modbus Cable

Number of Pairs: 3 pairs

Conductor Size: 22 AWG

Overall Cable Diameter: 9.50 mm

Capacitance: 11 pF/ft between conductors, 20.9 pF/ft between conductor and shield

Characteristic Impedance: 120 ohms

Maximum Current: 4.2A at 30°C

Outer Conductor Resistance: 3.576 ohms per 1000 feet

Maximum Tensile Strength: 90 lbs (41 kg)

Operating Temperature Range: -20°C to +60°C

Minimum Bend Radius: 114 mm

Applications of Belden 3108A Cable

Due to its high-quality construction and technical specifications, this cable is widely used in various industrial and commercial applications:

Industrial automation systems

Data communication in harsh environments

IIoT (Industrial Internet of Things) systems

Process control in factories

Transmission of audio and video signals

Security and surveillance systems

Types of Belden 3108A Modbus Cable

The Belden 3108A cable is available in the following models:

Belden 3108A – 1000 ft (Black) – Product Code: 3108A 0101000

Belden 3108A – 2000 ft (Black) – Product Code: 3108A 0102000

Belden 3108A – 5000 ft (Black) – Product Code: 3108A 0105000

Advantages of Belden 3108A Modbus Cable

Stable signal transmission: 120-ohm impedance and dual shielding design reduce noise and enhance data transmission performance.

High environmental resistance: The oil- and UV-resistant PVC jacket allows this cable to be used in industrial settings.

Long lifespan: Tinned copper conductors offer excellent corrosion resistance.

Global standards compliance: Certified by UL, CE, UKCA, and NEC/UL standards, ensuring high safety and quality.

Conclusion

The Belden 3108A (RS-485 3-Pair 22AWG) cable is an ideal choice for data transmission in industrial environments, factories, and automation systems. Its noise-resistant design, stable electrical properties, and durable structure make it one of the best options for industrial communication.