RS-485 1×2×0.20 PE UV
RS-485 bus cable, 1 pair 0.20 mm², 120 Ω, foil and tinned-copper braid, UV-resistant PE sheath
RS-485 1×2×0.20 PE UV is the one-pair bus cable for outdoors: 120 Ω, foil plus tinned-copper braid and a black, UV-resistant PE sheath. Supplied to order; the lead time is stated in the quote.
RS-485 1×2×0.20 PE UV is an RS-485 (EIA/TIA-485) data bus cable with a characteristic impedance of 120 Ω, for serial fieldbus communication between PLCs, drives, operator panels, meters and SCADA/RTU equipment. One twisted pair of stranded tinned-copper conductors with polyethylene (PE) insulation is enclosed by an overall screen of aluminium/polyester (Al/PET) foil with a tinned-copper drain wire and a tinned-copper braid, which keeps the bus reliable in electrically noisy installations and over long distances. The black PE sheath is UV-resistant, for routes exposed to sunlight.
Also known as: RS485 cable · Modbus cable · fieldbus cable
Applications
- Bus cable along solar farms, charging hubs and outdoor sites.
- RS-485 between outdoor cabinets, meters and inverters.
What to look out for
- CPR class Fca: for outdoors. Inside a building, where the cable is exposed to indoor air, the Bbl requires at least Dca.
- Where mechanical damage is a risk, choose the armoured RS-485 1×2×0.22 SWA PVC.
- Conductor
- Stranded tinned copper, 7 × 0.19 mm (±0.008 mm), approx. 0.20 mm².
- Insulation
- Polyethylene (PE), nominal diameter 1.80 mm (±0.13 mm).
- Pair
- One twisted pair; colours white/blue and blue/white.
- Screen
- Overall aluminium/polyester (Al/PET) foil with a stranded tinned-copper drain wire, 7 × 0.19 mm.
- Braid
- Tinned copper, 112 × 0.12 mm, coverage 90%.
- Sheath
- Polyethylene (PE), UV-resistant, black.
- Cross-reference
- Comparable to Belden 9841 (RS-485, 1 pair). Differs in sheath (UV-resistant PE instead of PVC) and conductor (7 × 0.19 mm instead of 7 × 0.20 mm).
- Rated voltage
- 300 V.
- Characteristic impedance
- 120 Ω.
- Mutual capacitance
- 42 pF/m (conductor to conductor).
- Conductor resistance
- max. 96 Ω/km at 20 °C.
- Temperature range
- −30 °C to +80 °C.
- Compliance
- RoHS (EU 2015/863) and REACH.
- Reaction to fire (CPR)
- Fca (EN 50575).
Key figures
| Pairs × mm² | Outer Ø (mm) | Impedance (Ω) | R 20 °C (Ω/km) |
|---|---|---|---|
| 1×2×0.20 | 5.90 ±0.20 | 120 | max. 96 |
Manufacturer's nominal values for this construction, with the tolerances from the sheet. Weight and minimum bending radius on request. Belden is a trademark of Belden Inc.; the name is used for comparison only.
PE UV or LSZH?
RS-485 1×2×0.20 PE UV
- UV-resistant PE sheath
- CPR Fca
RS-485 1×2×0.20 LSZH
- halogen-free LSZH sheath
- CPR Eca
Construction and electrical values are virtually the same. The PE version has a black UV-resistant sheath for routes in the sun and is Fca. The LSZH version has a grey halogen-free sheath and is Eca.
View RS-485 1×2×0.20 LSZH →PE UV or armoured?
RS-485 1×2×0.20 PE UV
- unarmoured
- Ø 5.90 mm
RS-485 1×2×0.22 SWA PVC
- steel wire armour
- Ø 10.20 mm
The PE version has a UV-resistant sheath but no armour. Under its grey PVC outer sheath, the SWA version has steel wire armour against mechanical damage, and at 10.20 mm it is considerably thicker than the 5.90 mm of this cable. If there is a risk of mechanical damage, choose the armoured version.
View RS-485 1×2×0.22 SWA PVC →