Fire Resistant Screened LSZH Cable 300/500V (PYRO-SI) – BS 7629-1
MESC PYRO-SI fire resistant screened LSZH cable 300/500V, 2–4 core, 1.0–2.5mm². BS 6387 C/W/Z, BS EN 50200 PH30. Fire alarms, emergency lighting. UAE.
MESC PYRO-SI Fire Resistant Screened Low Smoke Halogen Free (LSZH) Cable is engineered for life safety applications including fire alarm systems, voice alarm systems and emergency lighting in buildings. Solid copper Class 1 conductor with cross-linked thermosetting insulation (Type EI 2). Metallic laminated tape screen (min 10µm, longitudinally applied, 100% coverage) bonded to the red LSZH outer sheath. Protective conductor is annealed tinned copper. LPCB type tested at MESC-KSA. Outstanding fire performance: maintains circuit integrity under fire (BS 6387 C/W/Z), low smoke (≥80% transmission), low acid gas (≤0.5%), flame retardant for single and bunched cables. Temperature range 30°C to 105°C.
| Specification | Details |
|---|---|
| Conductor | Plain Annealed Solid Copper Class 1 per IEC 60228 |
| Insulation | Cross-Linked Thermosetting Type EI 2 per BS EN 50363-1 |
| Screen | Laminated metallic tape (≥10µm metal layer) + tinned copper protective conductor |
| Outer Sheath | Red LSZH Compound Type LTS3 per BS 7655-6.1 |
| Cores | 2, 3, 4 |
| Sizes | 1.0, 1.5, 2.5 mm² |
| Overall Dia | 7.6mm (2C/1.0mm²) to 11.5mm (4C/2.5mm²) |
| Temp Range | 30°C to 105°C |
| Voltage | 300/500 V |
| Dielectric Strength | 2000 VAC/1 min (core-to-core & core-to-screen) |
| Fire Resistance | BS 6387 C, W, Z |
| Circuit Integrity | BS EN 50200 PH30 & Annexure E |
| Flame Retardance | IEC 60332-1-2 (single) & IEC 60332-3-24 CAT C (bunch) |
| Acid Gas | ≤0.5% per BS EN 50267-2-1 |
| Smoke | ≥80% per BS EN 61034-2 |
| Oxygen Index | ≥30% per ASTM D2863 |
| Available Sizes / Core Configurations | 2 core: 1.0, 1.5, 2.5mm² 3 core: 1.0, 1.5, 2.5mm² 4 core: 1.0, 1.5, 2.5mm² |
| Conductor Type | Plain Annealed Solid Copper – Class 1 per IEC 60228 |
| Insulation | Cross-Linked Thermosetting Type EI 2 per BS EN 50363-1 – 105°C rated |
| Sheath / Outer Jacket | Red LSZH Compound Type LTS3 per BS 7655-6.1 with metallic tape screen |
| Voltage Rating | 300/500 V |
| Standard / Compliance | BS 7629-1, BS 5839-1, BS EN 50200, BS 6387 (C/W/Z), IEC 60332-1-2, IEC 60332-3-24 CAT C, BS EN 50267-2-1, BS EN 61034-2 |
| Color Code | 2C: Brown/Blue 3C: Brown/Black/Grey 4C: Blue/Brown/Black/Grey Outer sheath: Red |
| Standard Packing | Coil / Reel / Drum in Metres, Yards or Feet |
| Typical Applications | Fire alarm systems, voice alarm systems, emergency lighting, life safety circuits in commercial buildings, hospitals, hotels, schools, airports |
