Belden 3105A is an RS-485 single-pair Instrumentation Cable supplied as a 250FT put-up. Construction uses 22 AWG (7x30) Tinned Copper Conductors with Datalene® Insulation, an overall foil plus 65% Tinned Copper Braid Shield, and a PVC Jacket. Rated 120 Ohm and 300V, Sunlight Resistant and oil-resistant, with CM and PLTC approvals.
Belden 3105A Specifications
Electrical & Physical Specs
| Manufacturer | Belden |
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| Part Number | 3105A |
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| AWG | 22 AWG |
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| Pairs | 1 |
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| Stranding | 7x30 |
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| Conductor Material | Tinned Copper |
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| Insulation | Datalene |
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| Shield | Foil + 65% TC Braid |
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| Jacket | PVC |
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Performance & Electrical Characteristics
| Impedance | 120 Ohm |
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| Voltage Rating | 300V |
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Environmental & Mechanical Ratings
| Sunlight Resistance | Yes |
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| Oil Resistance | Yes |
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Compliance & Certifications
Packaging
Belden 3105A-250FT Applications
- RS-485 data links and Modbus serial trunks where 120 Ohm characteristic impedance is required.
- Industrial control runs in sunlight-exposed or oil-prone environments.
- PLTC-rated power-limited tray Cable installations between PLCs and field devices.
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