Industrial Automation
FB ARBUS ®
Balanced pair for databus - Fieldbus - UL 13 - UL 444
Attributes
Direct burial
Field Bus
Fire-retardantElectromagnetic interference protection
Hydrocarbon-resistant
Sunlight resistant
Certifications
Applications
Balanced pair for Fieldbus system data bus.
Fieldbus distribution circuits; suitable for use in underground and aerial raceways.
features
Temperature rating: 105ºC maximum.
Voltage rating: 300V.
Construction requirements: As per UL 13 Type PLTC / UL 444 (CMX).
Fire requirements: As per UL 1685.
Conductor requirements: As per ASTM B8 and ASTM B33.
NEC Code: Compliant with Art. 725 PLTC, Art. 727 ITC, Art. 800 Communications, Art. 501 classified locations Class1 Div.2 and Class 2 Div.2.
Hazardous (classified) location requirements: As per IRAM IAP IEC 60079-14 classified location Zone 0, intrinsically safe systems.
Databus requirements: As per IEC 61158-2.
description
Conductor: Annealed tinned electrolytic copper, 7-wire stranding, class B.
Insulation: XLPE or expanded polyolefin.
Identification:
Stranding: Consistent stable twisted pair.
Shield: Aluminium-polyester tape helical wrap plus tinned-copper drain-wire conductor.
Sheath: Orange PVC (blue for intrinsically safe systems); fire-retardant; sunlight and hydrocarbon-resistant.
Stripping: Polyamide ripcord under the sheath.
optionals
Armour: Zinc-plated steel served-wire helical armour or aluminum interlock armour plus orange PVC sheath (blue for intrinsically safe systems); fire-retardant; sunlight and hydrocarbon-resistant. These cables are UL certified for direct earth burial.
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 | Armoured cable (*) | Gauge AWG | Number of pairs | Conductor configuration N° x mm | Under armour diameter mm | Outside diameter mm | Weight kg/km | Characteristic Impedance Ohm | Electrical resistance Ohm/km | Mutual capacitance pF/m | Mutual inductance µH/km |
|---|---|---|---|---|---|---|---|---|---|---|---|
| FB 2079 | NO | 22 | 1 | 7 x 0.25 | -- | 8.2 | 63 | 150 | 59.7 | 33 | 900 |
| FB 2079 H | YES | 22 | 1 | 7 x 0.25 | 8.2 | 12.3 | 262 | 150 | 59.7 | 33 | 900 |
| FB 2077 | NO | 18 | 1 | 7 x 0.39 | -- | 6.6 | 53 | 100 | 23.6 | 78 | 590 |
| FB 2077 H | YES | 18 | 1 | 7 x 0.39 | 6.6 | 10.7 | 220 | 100 | 23.6 | 78 | 590 |
| FB 207702 | NO | 18 | 2 | 7 x 0.39 | -- | 9.4 | 137 | 100 | 23.6 | 78 | 590 |
| FB 207702 H | YES | 18 | 2 | 7 x 0.39 | 9.4 | 13.5 | 376 | 100 | 23.6 | 78 | 590 |
| FFB 207704 | NO | 18 | 4 | 7 x 0.39 | -- | 13.1 | 305 | 100 | 23.6 | 78 | 590 |
| FB 207704 H | YES | 18 | 4 | 7 x 0.39 | 13.1 | 18.1 | 687 | 100 | 23.6 | 78 | 590 |
| FB 207708 | NO | 18 | 8 | 7 x 0.39 | -- | 17.5 | 573 | 100 | 23.6 | 78 | 590 |
| FB 207708 H | YES | 18 | 8 | 7 x 0.39 | 17.5 | 23.5 | 980 | 100 | 23.6 | 78 | 590 |
| FB 2075 | NO | 16 | 1 | 7 x 0.49 | -- | 7.8 | 74 | 100 | 14.87 | 72 | 640 |
| FB 2075 H | YES | 16 | 1 | 7 x 0.49 | 7.8 | 11.9 | 264 | 100 | 14.87 | 72 | 640 |
(*) In all cases, the armour consists of a zinc-plated steel wire serve (SWA, Steel Wire Armour).