1771-OP

Overview

1771-OP is an Allen-Bradley protected AC output module with 4 channels, designed for 120 V AC applications in PLC-5 systems, offering surge protection and reliable switching performance.

Module Identity

• Model: 1771-OP

• Product Type: Protected AC Output Module

• Manufacturer: Allen-Bradley Rockwell

• Outputs per Module: 4

• Module Location: 1771 I/O chassis

Output Specifications

• Output Voltage Range: 92…138 V AC @ 47–63 Hz

• Output Current Rating: 2 A per output (max 6 A per module)

• Surge Current (max): 20 A per output for 60 ms

• Minimum Load Current: 80 mA per output @ 120 V AC, 60 Hz

• On-State Voltage Drop (max): 2 V AC @ 100 mA

• Off-State Leakage Current (max): 6 mA per output @ 120 V AC

Timing Characteristics

• Signal Delay:

  • On: 1.0 ms

  • Off: 8.3 ms

Power & Thermal Data

• Power Dissipation: 1.8 W (min), 13.9 W (max)

• Thermal Dissipation: 6.1 BTU/hr (min), 47.2 BTU/hr (max)

• Backplane Current: 350 mA @ 5 V DC ±5%

Isolation & Safety

• Isolation Voltage: 1500 V AC (rms)

• Fuse Protection:

  • 0.5 A Bussmann Type GLD

  • 5 A Bussmann Type MTH

Environmental Ratings

• Operating Temperature: 0…60 °C (32…140 °F)

• Storage Temperature: -40…85 °C (-40…185 °F)

• Relative Humidity: 5…95% (non-condensing)

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