Industrial Automation

SB 4700-4800-5700
Shielded multipair for RS 232 systems
Download PDF datasheet

Attributes

  • Double Shielding
  • Fire-retardant
  • Electromagnetic interference protection
  • Hydrocarbon-resistant
  • Sunlight resistant
  • Computer Systems

Certifications

Applications

Fieldbus distribution circuits; suitable for underground and aerial raceways in RS 232 systems.

features

Temperature rating: 105ºC maximum.
Voltage rating: 300V.
Construction requirements: As per UL 13 Type PLTC.
Fire requirements: As per UL 1685.
Conductor requirements: As per ASTM B8 and ASTM B33.
NEC Code: Compliant with Art. 725 PLTC and Art. 800 Communications.

description

Conductor: Annealed tinned electrolytic copper, 7-wire stranding, class B.
Insulation: Thermoplastic compound.
Identification: Colours according to colour coding chart..
Lay length: 50mm (20 twists/m).
Shield: Aluminium-polyester tape plus tinned-copper braid in SB 4700 and SB 4800 series. Aluminium-polyester tape plus tinned-copper drain wire in SB 5700 series.
Sheath: Grey PVC; fire-retardant; sunlight and hydrocarbon-resistan.
Stripping: Polyamide ripcord under the sheath.

optionals

Armour: Zinc-plated steel served-wire helical armour or aluminium interlock armour plus grey PVC sheath; fire-retardant; sunlight and hydrocarbon-resistant.

See Technical Note # 8, "Wire armour properties"

installation

Assembly: Minimum bend radius is 7xOD (unarmoured versions) and 12xOD (armoured versions).
Maximum pulling tension: 5daN/sq mm on copper conductors. Wire-armoured cables can withstand 10daN/sq mm on the armour wires.
Assembly temperature: 5ºC or higher.

Tables

Dimensions, Weight & General Properties



Code N° of Pairs Gauge Electrical resistance Shield Velocity of propagation Characteristic impedance Mutual capacitance Outside diameter Weight
AWG Ohm/km VP(%) Ohm pF/m pF/ft mm kg/km
SB 4702 2 24 90.9 Aluminium / Polyester  tape + tinned copper braid (65% coverage) 45 75 100 30.5 6.8 55
SB 4703 3 7.3 67
SB 4704 4 7.9 78
SB 4708 8 10.2 132
SB 4710 10 11.6 158
SB 4712 12 12.0 176
SB 4716 16 13.3 224
SB 4725 25 16.4 328
SB 4802 2 22 57.4 Aluminium / Polyester  tape + tinned copper braid (65% coverage) 45 70 120 36.6 7.5 68
SB 4803 3 7.9 81
SB 4804 4 8.5 95
SB 4808 8 11.1 163
SB 4810 10 12.9 209
SB 4812 12 13.3 233
SB 4816 16 14.5 283
SB 4825 25 18.0 418
SB 5702 2 24 90.9 Aluminium / Polyester  tape + tinned copper drain wire 45 75 100 30.5 6.1 39
SB 5703 3 6.4 47
SB 5704 4 7.2 60
SB 5708 8 9.0 96
SB 5710 10 10.9 129
SB 5712 12 11.3 146
SB 5716 16 12.4 178
SB 5725 25 15.0 253

pF/m = Mutual capacitance between conductors in the same pair expressed in picoFarad per metre.
pF/ft = Mutual capacitance between conductors in the same pair expressed in picoFarad per foot.

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