Allen-Bradley 1791-OA16 Flex I/O AC Block Output Module

Product Overview

The AB 1791-OA16 is a high-performance AC block output module designed for versatile industrial automation applications. It provides sixteen discrete outputs divided into two groups of eight channels. This module supports vertical or horizontal DIN rail mounting, ensuring flexible installation while maintaining reliable electrical performance.

Engineered by Allen-Bradley, the 1791-OA16 operates at 120V AC and delivers a maximum output current of 600 mA at 30°C in vertical orientation. Horizontal installation limits the output current to 300 mA at the same temperature. The module includes surge current protection of 10A for 50 milliseconds and an off-state leakage current of 3 mA, ensuring stable and safe operation.

Key Features

• Sixteen discrete AC outputs arranged in two groups of eight channels

• Nominal voltage: 120V AC, operating range: 20–132V AC, 47–63 Hz

• Supports Remote I/O (RIO) communication

• DIN rail mounting, suitable for vertical or horizontal orientation

• Compatible with Belden 9463 cables and signal wires up to 14 AWG

• Status indicator lights display rack and communication status

• Maximum environmental temperature rating reduces current output accordingly

• Surge current: 10A for 50 milliseconds

• Protects sensitive electronics from extreme heat and humidity

Technical Specifications

Applications

• Industrial automation requiring multiple AC outputs

• Remote I/O networks with PLC-2, PLC-3, PLC-5, or SLC 5/02 controllers

• Factory equipment control and discrete device actuation

• Systems requiring surge-protected AC outputs

FAQ

Q1: Is the AB 1791-OA16 brand new?
A1: Yes, the AB 1791-OA16 is factory-new and original.

Q2: How many outputs does it support?
A2: This module provides sixteen discrete AC outputs divided into two groups of eight channels.

Q3: What is the maximum output current?
A3: Maximum 600 mA at 30°C in vertical mounting; 300 mA in horizontal orientation.

Q4: What is the voltage range for operation?
A4: The module operates at 20–132V AC, 47–63 Hz.

Q5: Can it be mounted horizontally?
A5: Yes, it supports both vertical and horizontal DIN rail mounting.

Q6: What is the shipping timeline?
A6: Shipping occurs within 3 days to 2 weeks depending on order size via DHL or equivalent.

Q7: What is the return policy?
A7: Returns are accepted within 30 days for verified quality issues.