Allen Bradley 1756-OA16 ControlLogix 16-Channel AC PLC Card

Allen Bradley 1756-OA16 ControlLogix 120/240V AC Digital Output Module

Product Overview

The 1756-OA16 (Part Number: 1756-OA16) is a high-density digital AC output module from the Allen-Bradley ControlLogix I/O family. Engineered for industrial-grade switching, this module provides 16 isolated outputs capable of managing AC loads ranging from 74V to 265V AC. It is primarily utilized to drive solenoids, contactors, motor starters, and indicating lights in complex automation systems.

The 1756-OA16 features mechanical fusing per point to protect internal circuitry and connected field devices from overcurrent conditions. Designed for seamless integration into any ControlLogix chassis, it supports "Removal and Insertion Under Power" (RIUP), allowing for maintenance without system downtime.

Detailed Technical Specifications

The following specifications reflect the robust hardware design of the 1756-OA16:

• Manufacturer: Allen-Bradley (Rockwell Automation)

• Model/Part Number: 1756-OA16

• Module Type: Digital AC Output Module

• Number of Outputs: 16 Points (mechanically fused)

• Voltage Category: 120/240V AC

• Operating Voltage Range: 74–265V AC (47–63 Hz)

• Output Current Rating (Point): 0.5 A max @ 60 °C (140 °F)

• Output Current Rating (Module): 4 A max @ 60 °C (140 °F)

• Surge Current per Point: 5 A for 43 ms (repeatable every 2 seconds)

• Minimum Load Current: 10 mA per point

• Output Delay Time (OFF to ON): 9.3 ms @ 60 Hz (max)

• Output Delay Time (ON to OFF): 11 ms @ 60 Hz (max)

• Backplane Current (5.1V DC): 400 mA

• Backplane Current (24V DC): 2 mA

• Power Dissipation (Max): 6.5 W @ 60 °C

• Thermal Dissipation: 22.17 BTU/hr

• Isolation Voltage: 250V (continuous), Basic Insulation Type

• Removable Terminal Block (RTB): 1756-TBNH, 1756-TBSH (sold separately)