Overview

The 1797-BIC is a Flex Ex Bus Isolator designed to isolate electrical signals on a communication bus, protecting devices on one segment from electrical faults on another segment. This enhances safety and reliability in industrial environments where electrical disturbances can occur.

Technical Specifications

• I/O Module Capacity:

  • 8 FLEX Ex modules

• Indicators:

  • Power: Green when power is applied

• Isolation Path:

  • Flexbus to Flexbus
  • Galvanic to DIN EN 60079-11
  • Flexbus slave side to power supply

• Power Consumption:

  • 18V to 32V DC @ 0.15A

• Power Supply Failure:

  • Max input Um = 253V AC

• Power Dissipation:

  • 2.1 W

• Thermal Dissipation:

  • 7.2 BTU/hr

• IS Module Type:

  • [Ex ib] IIC

• Conductor Wire Size:

  • 4 mm² (12 gauge) stranded max, 1.2 mm (3/64 in.) insulation max

• Weight:

  • Approx. 200 g

• Environmental Conditions:

  • Operational Temperature: -20°C to +70°C (-4°F to +158°F)
  • Storage Temperature: -40°C to +85°C (-40°F to +185°F)
  • Relative Humidity: 5% to 95% non-condensing

• Shock Operating:

  • Tested 30 g peak acceleration, 11 (±1) ms pulse width

• Shock Nonoperating:

  • Tested 30 g peak acceleration, 11 (±1) ms pulse width

• Vibration:

  • Tested 5 g @ 10-500 Hz per IEC 68-2-6

• Output (Intrinsically Safe):

  • 16 pin male flexbus connector

• Certifications:

  • CENELEC: Uo < 5.75V DC, Io < 400 mA, Po < 2.05 W, Lo < 100 μH, Co < 39 μF
  • FM and cULus: Vt < 5.75V DC, It < 398.25 mA, Ca < 39.67 μF, La < 210 μH
  • Agency Certification: Marking and classification FM Nonincendive, use for Class I, Division 2 Groups A, B, and D. Provides intrinsically safe outputs to Class I, Division 1, Groups A, B, C, and D when installed in accordance with Control Drawing No. 1797-RM001