General-purpose insulation tubing in two grades. 28 sizes from 0.8 to 50 mm.
| Models | LRS-1 / NFR-P |
|---|---|
| Shrink ratio | 2:1 |
| Recovered wall | 0.30–0.80 mm by size |
| Operating temp | -55 to +125 °C |
| Standards | UL 224, IEC 60684, RoHS |
LRS-1 and NFR-P are single-wall radiation-crosslinked polyolefin heat shrink tubing in a 2:1 shrink ratio. LRS-1 is halogen-free and flame-retardant, recovering at 90°C. NFR-P is non-flame-retardant with a bright surface finish, recovering at 110°C.
| Property | Test Method | Requirement | Typical |
|---|---|---|---|
| Tensile strength | ASTM D638 | ≥10.4 MPa | 11 MPa |
| Elongation at break | ASTM D638 | ≥300% | 330% |
| Volume resistivity | IEC 93 | ≥10¹⁴ Ω·cm | 2×10¹⁴ |
| Water absorption | ISO 62 | <0.5% | 0.15% |
| Dielectric strength | IEC 243 | >20 kV/mm | 23 kV/mm |
| Power frequency withstand | — | 2.5 kV, 60 s | Pass |
| Copper corrosion | — | No corrosion | Pass |
| Wall bias | UL 224 | ≤30% | 15% |
| Longitudinal change | UL 224 | -3% to +3% | -0.5% |
Internal test data. Questions on parameters? Contact our engineers.
| Size | Expanded ID (mm) | Recovered ID (mm) | Wall (mm) | Spool (m) |
|---|---|---|---|---|
| Φ0.8 | 1.2 ±0.3 | 0.4 ±0.1 | 0.30 ±0.05 | 200 |
| Φ1.0 | 1.4 ±0.3 | 0.4 ±0.1 | 0.35 ±0.05 | 200 |
| Φ1.5 | 1.9 ±0.3 | 0.6 ±0.1 | 0.35 ±0.05 | 200 |
| Φ2.0 | 2.4 ±0.3 | 0.9 ±0.1 | 0.40 ±0.05 | 200 |
| Φ3.0 | 3.4 ±0.3 | 1.4 ±0.1 | 0.40 ±0.05 | 200 |
| Φ5.0 | 5.4 ±0.3 | 2.3 ±0.2 | 0.50 ±0.05 | 100 |
| Φ8.0 | 8.4 ±0.4 | 3.8 ±0.2 | 0.55 ±0.05 | 100 |
| Φ10 | 10.5 ±0.4 | 4.8 ±0.2 | 0.55 ±0.05 | 100 |
| Φ15 | 15.5 ±0.5 | 7.2 ±0.3 | 0.55 ±0.05 | 100 |
| Φ20 | 21.0 ±0.5 | 9.7 ±0.3 | 0.60 ±0.05 | 100 |
| Φ30 | 30.8 ±0.8 | 14.0 ±1.0 | 0.70 ±0.05 | 25 |
| Φ50 | 51.0 ±1.0 | 24.0 ±1.0 | 0.80 ±0.05 | 25 |
Standard color: black. Custom colors available — contact our sales team.
Bundle and color-code wire groups in panels and harnesses.
Insulate splices with more than 20 kV/mm dielectric strength.
Flame-retardant insulation for 1 kV busbars in enclosed panels.
Still deciding? Contact our engineers.
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