Belden 3105A RS-485 22 AWG 2-Conductor Shielded Network Cable, 1000 ft Cut Reel
$3,928.62
Belden 3105A is a 22 AWG, 1-pair RS-485 shielded network cable rated CM and PLTC, designed for harsh industrial environments including IIoT, factory automation, and process control. Features tinned copper conductors, aluminum foil + 65% tinned copper braid shield, foam polyethylene insulation, and a sunlight- and oil-resistant black PVC jacket. Sold as a 1,000 ft cut reel. UL Listed, RoHS compliant.
Belden 3105A RS-485 22 AWG 2-C...
$3,928.62
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Belden 3105A – RS-485 Shielded Industrial Network Cable
The Belden 3105A is a high-performance RS-485 data cable engineered for demanding industrial and commercial applications. With a 120-ohm nominal characteristic impedance and a dual-shield construction (aluminum foil + 65% tinned copper braid), this cable delivers reliable signal integrity in electrically noisy environments including factory floors, process automation systems, IIoT networks, and audio/video infrastructure.
Key Features
- 22 AWG (7×30) stranded tinned copper conductors for flexibility and corrosion resistance
- Foam HDPE (Datalene®) insulation — White/Blue Stripe & Blue/White Stripe color coding
- Dual shield: 100% aluminum foil + 65% tinned copper braid for superior EMI/RFI rejection
- 22 AWG tinned copper drain wire
- Black PVC jacket — sunlight resistant and oil resistant (Passes Oil Res II per UL1277)
- Nominal OD: 0.294 in (7.47 mm)
- 120-ohm characteristic impedance — RS-485 optimized
- Rated for indoor and outdoor use
Technical Specifications
| Part Number | 3105A 010-CUT REEL |
|---|---|
| Conductor | 22 AWG (7×30) Tinned Copper |
| Number of Conductors | 2 (1 pair) |
| Insulation | Foam HDPE (Datalene®), 0.029 in thick |
| Insulation OD | 0.087 in (2.2 mm) |
| Shield – Foil | Bi-Laminate Aluminum/Polyester Tape, 100% coverage |
| Shield – Braid | Tinned Copper, 65% coverage |
| Drain Wire | 22 AWG (7×30) Tinned Copper |
| Jacket | PVC, 0.047 in thick, Black |
| Overall OD | 0.294 in (7.47 mm) |
| Characteristic Impedance | 120 Ohm (nominal) |
| DC Resistance (Conductor) | 18.2 Ohm/1,000 ft |
| DC Resistance (Outer Shield) | 4.685 Ohm/1,000 ft |
| Capacitance (Cond-to-Cond) | 11 pF/ft (36 pF/m) |
| Velocity of Propagation | 78% |
| UL Voltage Rating | 300 V (CM, PLTC) |
| Max Current | 6 A per conductor at 30°C |
| Operating Temperature | −20°C to +60°C |
| UL Temperature Rating | 60°C |
| Min. Bend Radius | 3.372 in (85.65 mm) |
| Max. Pull Tension | 53.34 lbs (24.19 kg) |
| Cable Weight | 43 lbs/1,000 ft |
| Put-Up | 1,000 ft Cut Reel |
| Country of Origin | See product label |
Standards & Certifications
- NEC/UL: Article 725, Article 800 — CM, PLTC rated
- Flammability: UL 1685 UL Loading, IEC 60332-1-2
- Environmental: Indoor/Outdoor, Sunlight Resistant, Oil Resistant
- RoHS: EU Directive 2011/65/EU (RoHS 2), EU Directive 2015/863/EU (RoHS 2 amendment)
- WEEE: EU Directive 2012/19/EU
- CPR: Euroclass Eca; UKCA Class Eca
- UKCA: UK Conformity Assessed
- China RoHS II: GB/T 26572-2011
- ECCN: EAR99
Suitable Applications
RS-485 networks, IIoT infrastructure, factory automation, process control, building automation, audio distribution, video systems, data communication in harsh or industrial environments.
Note: For a CPE-jacketed version with enhanced chemical resistance, order Belden Part No. YR44345.
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