1771-OAN

Overview

The 1771-OAN from Allen-Bradley is an AC output module designed for high-reliability switching in 1771 I/O chassis.

Outputs and Module Location

• Outputs per Module: 32 (4 groups of 8)

• Module Location: 1771-A1B thru A4B or later 1771 I/O Chassis

Voltage and Current Ratings

• Voltage Range: 85–264 V AC, 47–63 Hz

• Nominal Voltage: 120/240 V AC

• Maximum Output Current per Point: 1.0 A at 30°C, derates linearly to 0.3 A at 60°C

• Maximum Output Current per Group: 2.0 A at 30°C, derates linearly to 0.6 A at 60°C

• Maximum Output Current per Module: 8.0 A at 30°C, derates linearly to 2.4 A at 60°C

• Maximum Surge Current: 10 A for 25 ms at 1 s intervals at 30°C; 10 A for 25 ms at 2 s intervals at 60°C

Electrical Performance

• Minimum Load Current: 10 mA per output

• Maximum On-State Voltage Drop: 1.5 V AC (RMS) @ 1 A

• Maximum Off-State Leakage Current: 2.3 mA per output @ 230 V AC, 60 Hz; 1.2 mA per output @ 120 V AC, 60 Hz

• Maximum Output Signal Delay: Off to On: 1.0 ms max; On to Off: 9.3 ms @ 60 Hz, 11.0 ms @ 50 Hz

Power and Thermal

• Power Dissipation: 16.2 W max; 1.0 W min

• Thermal Dissipation: 55.4 BTU/hr max; 3.4 BTU/hr min

Backplane and Isolation

• Backplane Current: 800 mA max @ 5 V DC

• Isolation Voltage: Tested to withstand 1000 V for 60 s

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