Belden 9841LW RS485 cable

BrandBelden
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Description

Physical Characteristics (Overall)

CONDUCTOR

AWG Stranding Material No. of Pairs
24 7×32 TC – Tinned Copper 1
Conductor Count 2
Total Number of Pairs 1

INSULATION

Material Nominal Diameter Diameter +/- Tolerance
PE – Polyethylene 1.73 mm 0.05 mm

COLOR CHART

Number Color
Pair 1 White/Blue & Blue/White

OUTER SHIELD

Type Layer Material Material Trade Name Coverage [%] Thickness of Foil Drainwire Material Drainwire AWG Drainwire Construction n x D
Tape 1 Bi-Laminate (Alum+Poly) Beldfoil® 100% 9 / 23 µm TC – Tinned Copper AWG24/7 7×32
Braid 2 Tinned Copper (TC) 90%

OUTER JACKET

Material Color Nominal Diameter Nominal Wall Thickness
LSZH – Low Smoke Zero Halogen (Flame Retardant) Chrome (RAL 7037) 6.50 mm 1.10 mm

Construction and Dimensions

STRANDING

Lay Direction Twists
Left Hand 5.333 twist/ft

CABLING

Description
1 pair and 2 fillers twisted to cable core

Electrical Characteristics

CONDUCTOR DCR

Nominal Conductor DCR Nominal Inner Shield DCR
78.7 Ohm/km 11.0 Ohm/km

CAPACITANCE

Nom. Capacitance Conductor to Conductor Nom. Capacitance Conductor to Other Conductor to Shield
42 pF/m 75.5 pF/m

IMPEDANCE

Frequency [MHz] Nominal Characteristic Impedance
1 120 Ohm

HIGH FREQUENCY (NOMINAL/TYPICAL)

Frequency [MHz] Nom. Insertion Loss
1 MHz 1.97 dB/100m

DELAY

Max. Delay Skew Nominal Delay Nominal Velocity of Propagation (VP) [%]
66 ns/100m 5.2 ns/m 66%

CURRENT

Element Max. Recommended Current [A]
Conductor(s) 2.1 Amps per Conductor

VOLTAGE

Voltage Rating [V]
300 V

Temperature Range

Installation Temperature Range -15°C To +80°C
Storage Temperature Range -45°C To +80°C
Operating Temp Range (Flexible Install) -15°C To +80°C
Operating Temp Range (Fixed Install) -45°C To +80°C

Mechanical Characteristics

Oil Resistance IEC 60811-404
Max. Pull Tension 328 N
Min. Bend Radius During Installation 65 mm
Min. Bend Radius/Minor Axis 2.5 in

Standards

CPR Euroclass Cca-s1,d1,a1
CENELEC Compliance EN 50290-2-27

Applicable Environmental and Other Programs

Environmental Space Indoor/Outdoor – Euroclass Cca
EU Directive Compliance EU Directive 2003/11/EC (BFR)
EU CE Mark Yes

Suitability

Suitability – Indoor Yes
Suitability – Non-Halogenated Yes
Suitability – Sunlight Resistance Yes

Flammability, LS0H, Toxicity Testing

IEC Flammability IEC 60332-1-2
IEC 60754-1 – Halogen Amount Zero
IEC 60754-2 – Halogen Acid Gas Amount – Max. Conductivity 2.5 µS/mm
IEC 60754-2 – Halogen Acid Gas Amount – Min. pH 4.3
IEC 61034-2 – Smoke Density Min. Transmittance 80%

History

Update and Revision Revision Number: 0.56 Revision Date: 11-09-2022