Allen-Bradley 1771-OBD/C | Output Module

Description

• Manufacturer: Rockwell Automation
• Part Number: 1771-OBD/C
• Product Type: Discrete Output Module
• Brand: Allen-Bradley
• Series: 1771 Product Bulletin

Specifications

• Outputs: 16
• Operating Voltage Range: 10-60 VDC
• Nominal Output Voltage: 48 VDC
• Output Current Rating per Channel: 2 A (Resistive)
• Maximum Surge Current:
  • 4 A for 10 ms (repeatable every 2 s)
  • 25 A for 10 ms (repeatable every 2 s)
• Minimum Load Current: 2.5 mA
• Maximum Continuous Current per Module: 8 A
• Backplane Current: 400 mA
• Power Dissipation: 15.6 W
• Thermal Dissipation: 53.3 BTU/hr

Performance

• On-State Voltage Drop: 1.5 V DC
• Off-State Leakage Current: 0.5 mA
• Output Signal Delay:
  • Off to On: 0.1 ms
  • On to Off: 0.2 ms

Environmental

• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Storage Temperature: -40°C to 85°C (-40°F to 185°F)
• Relative Humidity: 5% to 95% (non-condensing)

Installation

• Mounting: Rack Mountable (1771-A1B to 1771-A4B I/O chassis, excluding 1771-A4)
• Field Wiring Arm: 1771-WH, 1771-WHF, 1771-WHFB
• Wiring Arm Screw Torque: 7-9 inch-pounds

Additional Information

• Coating: Conformal Coat
• Keying: Between 10-12 and 22-24
• Wiring Requirements:
  • Signal wire gauge: 0.34–2.5 mm² (22–14 AWG)
  • Insulation Rating: 120°C (248°F) minimum
  • Maximum Insulation Thickness: 1.2 mm (3/64 in.)

Shock and Immunity

• Operating Shock: 30 G (3-pulse at 11 ms)
• Non-operating Shock: 50 G (3-pulse at 11 ms)
• ESD Immunity:
  • 4 kV contact discharges
  • 8 kV air discharges