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A 3-Core Shielded Multi-Conductor Cable, 20 AWG is a type of electronic or control cable designed to reliably transmit low-voltage signals or data, typically in environments where protection from electrical interference is necessary.
| Parameter | Specification | Notes |
| Number of Conductors | 3 | Individual insulated conductors. |
| Wire Gauge (AWG) | 20 AWG | American Wire Gauge standard size. |
| Conductor Material | Stranded Tinned Copper | Stranding (e.g., 7×28, 10×30) offers flexibility; tinning resists corrosion. |
| Nominal Outside Diameter (O.D.) | ≈3.7 mm to 5.5 mm (Varies by jacket thickness) | This is the diameter of the finished cable. |
| Conductor DCR | ≈33.8 Ohms/km | Nominal DC Resistance per kilometer. |
| Parameter | Specification | Notes |
| Insulation Material | PVC (Polyvinyl Chloride) or PE (Polyethylene) | PVC is common for general-purpose; PE/PP offers better electrical properties. |
| Conductor Lay-Up | Twisted | The three insulated conductors are twisted together to minimize crosstalk. |
| Shielding Type | Overall Foil Shield (e.g., Aluminum/Polyester tape) or Braid Shield | Provides 100% coverage against EMI/RFI. |
| Drain Wire | Included (typically 22 AWG or 24 AWG tinned copper) | Used to terminate the shield to ground. |
| Jacket Material | PVC, LSZH (Low Smoke Zero Halogen), or TPE | PVC is standard; LSZH is for restricted areas (e.g., high traffic, public buildings). |
| Parameter | Specification | Purpose/Compliance |
| Voltage Rating | 300V or 600V | Maximum recommended operational voltage. |
| Nominal Capacitance | ≈70 pF/ft (Conductor to Shield) | Measure of signal loss; lower is better for longer distances. |
| Operating Temperature | −20∘C to +80∘C (Varies by jacket material) | Range for safe and reliable operation. |
| Agency Approvals | UL Listed (e.g., UL 2464), CSA, RoHS | Compliance with safety and environmental standards. |
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