Eupen EC4-50-FRB – technical data and applications
Low-loss 50 Ω feeder cable for antenna, base station and in-building coverage systems. The 1/2-inch corrugated copper tube construction is designed for fixed RF installations where low transmission loss is required.
The solid inner conductor is copper-clad aluminium (CCA). Gas-injected cellular polyethylene insulation and a corrugated copper tube form a low-loss construction. The halogen-free, low-smoke, flame-retardant jacket is suitable for indoor and outdoor installations.
Construction and dimensions
- Cable model: EC4-50-FRB / 5128-HLFRB, 1/2″ size
- Outer diameter: Ø 16.2 mm
- Inner conductor: Ø 4.9 mm; solid copper-clad aluminium wire (CCA)
- Dielectric: gas-injected cellular PE, Ø 12.4 mm
- Outer conductor and shielding: corrugated copper tube, Ø 13.8 mm
- Jacket: black flame-retardant polyolefin (FRNC / LSZH); thickness 1.2 mm
- Weight: 263 g/m (263 kg/km)
- Supply: sold by the metre; standard reel 500 m
Electrical characteristics
- Impedance: 50 ± 1 Ω
- Capacitance: 76 pF/m
- Relative propagation velocity: 0.88 (88% of the speed of light)
- Inductance: 0.189 µH/m
- DC resistance at +20 °C: inner conductor 1.48 Ω/km; outer conductor 2.3 Ω/km
- Insulation resistance: ≫ 5 GΩ·km
- RF peak voltage: 1.6 kV
- RF peak power: 25.6 kW
- Manufacturer-specified cut-off frequency: 9.8 GHz
- Frequency range of attenuation and power data: 10–6000 MHz in the manufacturer’s data sheet
Attenuation by frequency
Typical attenuation in dB / 100 m at +20 °C.
All 31 attenuation values (10–6000 MHz)
Example: the calculated attenuation of a 25-metre cable at 1 GHz is approximately 1.79 dB. Connector losses are additional.
Power rating
Manufacturer-specified mean power rating in watts: ambient temperature +40 °C, inner conductor +100 °C, VSWR 1.0 and no solar loading.
Installation and operating conditions
- Minimum bending radius: 70 mm for a single bend; 120 mm in a test with 15 repeated bends
- Storage temperature: −70…+85 °C
- Installation temperature: −40…+60 °C
- Operating temperature: −55…+85 °C
- Maximum pulling strength: 900 N (90 daN)
- Maximum hanger spacing: 1 m
- Maximum cable length per hoisting grip: 70 m
- Installation: indoor and outdoor use; UV-resistant jacket
Use connectors designed for the standard Eupen 1/2″ EC4-50 cable and the SPTC50AV12 cable preparation tool. Follow the connector installation instructions, protect outdoor connections from moisture and avoid crushing the cable. Compatible connectors and the tool are available as optional products when you select Add to cart.
Fire classification and documents
- CPR class: B2ca-s1a,d1,a1; EN 50575 / EN 50399
- Jacket properties: halogen-free, low-smoke, flame-retardant and UV-resistant
- Manufacturer-specified standards: IEC 60754; IEC 60332-1; IEC 60332-3, category C; IEC 61034; EN 50575; EN 45545-2:2013+A1:2015
Manufacturer’s technical data: Eupen EC4-50-FRB (5128-HLFRB). The product-specific data sheet is also available under the Documents tab.