LMR-400-FR Fire-Retardant Low Loss Coaxial Cable
Exclusive MENA Distribution by Soyuztec Trading LLC
LMR-400-FR is a high-performance, non-halogen, fire-retardant 50 Ohm coaxial cable designed for indoor use where fire safety is a priority. As a CMR-rated (Riser) cable, it is engineered to prevent the spread of fire between floors in a building while maintaining the industry-leading signal integrity of the standard LMR-400 series.
Features
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Fire Safety: Non-halogen, low smoke, fire-retardant (FRPE) jacket.
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Compliance: UL/NEC & CSA listed ‘CMR’ and ‘FT4’; meets FAA FAR25 and MSHA-P for mining.
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Low Loss: Superior performance compared to RG-8 and similar air-dielectric cables.
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RF Shielding: Double shielded (Aluminum Tape + Tinned Copper Braid) providing >90 dB interference protection.
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Versatility: Suitable for indoor riser runs, ground vehicles, maritime vessels, and oil rigs.
Specification
| Characteristic | Specification | Notes |
| Impedance | 50 Ohms (Nominal) | Standard RF impedance. |
| Jacket Material | FRPE (Fire-Retardant Polyethylene) | Non-halogen, low smoke, CMR (Communications Multipurpose Riser) rated, meeting CSA FT4 and FAA FAR25 standards. |
| Max Operating Frequency | 6 GHz (Typical) or 8 GHz (Max) | Commonly used well into the 5 GHz band. |
| Velocity of Propagation (VoP) | 84% (Typical) | High VoP indicates low signal loss. |
| Outer Diameter (Nominal) | 0.405 inches 10.29 mm | Same size as standard LMR-400. |
| Shielding Effectiveness | 90 dB | Double-shielded (bonded foil and tinned copper braid). |
| Inner Conductor | Solid Copper Clad Aluminum BCCAl | 0.108 in diameter. |
| Dielectric | Foam Polyethylene FPE | 0.285 in diameter. |
| Capacitance | 23.9 pF/ft 78.4 F/m | |
| DC Voltage Withstand | 2,500 VDC | |
| Peak Power | 16 kW | |
| Operating Temperature | -40 C to +85 C | |
| Min. Bend Radius (Installation) | 1.0 inch 25.4 mm | Excellent flexibility for 0.405 in coax. |
Applications
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In-Building Riser Runs: Safe routing through vertical shafts.
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Mission Critical Comms: Ideal for Motorola Solutions radio networks.
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Maritime & Offshore: Oil rigs and commercial shipping where smoke toxicity is a concern.
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Public Safety: Wireless systems in tunnels, airports, and high-occupancy buildings.
Why buy from Soyuztec?
As the exclusive distributor, we guarantee 100% authentic Times Microwave products. Beware of “LMR clones”—only genuine LMR cables provide the tested 20-year service life and certified fire ratings required for legal compliance in the UAE and GCC.
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