Belden 3109A Paired RS-485 Cable

Belden 3109A Cable

Cable Construction

Number of Conductor Pairs: 4
Total Number of Conductors: 8
Conductor AWG: 22
Conductor Stranding: 7 x 30
Conductor Diameter: 0.030"
Conductor Material: Tinned Copper (TC)
Insulation: Datalene ® Foam High Density Polyethylene (FHDPE)
Overall Cable Colour Code: 1: White / Blue Stripe & Blue / White Stripe
2: White / Orange Stripe & Orange / White Stripe
3: White / Green Stripe & Green / White Stripe
4: White / Brown Stripe & Brown / White Stripe
Outer Shield Type: Beldfoil ® Tape / Braid
Outer Shield Material Layer 1: 100% Beldfoil ® Aluminium Foil - Polyester Tape
Outer Shield Material Layer 2: 90% Braid Tinned Copper (TC)
Outer Shield Coverage: 100%
Outer Shield Drain Wire AWG: 22
Outer Shield Drain Wire Stranding: 7 x 30
Outer Shield Drain Wire Diameter: 0.030"
Outer Shield Drain Wire Conductor Material: Tinned Copper (TC)
Outer Jacket Material: Polyvinyl Chloride (PVC)
Overall Nominal Diameter: 0.420"

Mechanical Properties

Operating Temperature Range: -20°C To +60°C
Non-UL Temperature Rating: 60°C
Bulk Cable Weight: 96.4 lbs/1000 ft.
Max. Recommended Pulling Tension: 100 lbs.
Min. Bend Radius (Install): 4.5 in.
NEC/(UL) Specification: CM, PLTC OIL RES II
CEC/C(UL) Specification: CM
UL Flame Test: UL1581 Vertical Tray
CSA Flame Test: FT1
Sunlight Resistance: Passes UL 1581, 720 Hours
Plenum: No

Electrical Properties

Input/Unfitted Impedance at 1MHz: 120 Ohms
Nom. Capacitance Conductor to Conductor @ 1 KHz: 11.0 pF/ft
Nom. Cap. Cond. to Other Cond. & Shield @ 1 KHz: 20.9 pF/ft
Nominal Velocity of Propagation: 78%
Nom. Conductor DC Resistance of Pair @ 20°C: 14.7 Ohms/1000 ft
Nominal Outer Shield DC Resistance @ 20°C: 1.4 Ohms/1000 ft
Nom. Attenuation (dB/100 ft) at 1MHz: 0.5 dB/100 ft
Max. Operating Voltage UL: 300 V RMS
Max. Recommended Current: 2.7 Amps per conductor @ 25°C

Oil Resistance: Passes Oil Res II Per UL1277, Table 10.17
CPE Jacket Optional


Cable Ordering Information

Order No. Description Cable Length (ft) Shipping Weight (lbs) Colour
3109A 0101000 4 PR #22 FHDPE SH PVC 1000 107 Black
3109A 0102000 4 PR #22 FHDPE SH PVC 2000 218 Black

Final Cable length may vary ±20%

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