1771-OD16

Overview

1771-OD16 is a 16‑point isolated AC output module for Allen‑Bradley 1771 I/O chassis.

Identification

• Product No.: 1771-OD16

• Type: Digital Output Module

• Manufacturer: Allen‑Bradley

Physical Data

• Module Location: 1771‑A1B through A4B I/O chassis

• Dimensions: 290 × 130 × 30 mm

• Weight: 0.6 kg

Electrical Ratings

• Number of channels: 16 isolated outputs

• Voltage rating: 74 to 138 V AC, 47–63 Hz

• Current rating (per channel): 5 mA to 2 A continuous (max)

• Surge capacity: 20 A peak for 100 ms, repeatable every 2 s

• Module limit: 8 A continuous maximum

• Power rating: 3 W per output (max at 2 A)

• On‑state voltage drop: 5.8 V rms max (<50 mA load), 1.5 V rms max (>50 mA load)

• Off‑state leakage current: 3.0 mA max at 138 V AC

• Signal delay: 8.3 ms at 60 Hz, 10 ms at 50 Hz (zero‑cross switching)

Thermal & Power

• Power dissipation: 13.25 W max, 1.25 W min

• Thermal dissipation: 45.2 BTU/hr max, 4.3 BTU/hr min

• Backplane current: 250 mA maximum

Isolation & Wiring

• Isolation voltage: 2500 V DC for 1 s (UL508 & CSA C22.2 #142)

• Maximum cable length: 1000 ft (304.8 m)

• Conductor size: 14 AWG (2 mm²) stranded max, insulation 2 mm max

• Field wiring arm: Catalog No. 1771‑WN

• Screw torque: 7–9 in‑lb

• Keying: Between 22–24 and 34–36

Environmental Conditions

• Operating temperature: 0 to 60 °C (32 to 140 °F)

• Storage temperature: −40 to 85 °C (−40 to 185 °F)

• Relative humidity: 5 to 95% non‑condensing

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