Allen-Bradley 1791-16A0 16-Point Block I/O Input Module

Product Overview

The AB 1791-16A0 is a 16-point discrete input module from the Allen-Bradley 1791 Block I/O series. It integrates sixteen 120VAC inputs into a compact, self-contained unit suitable for distributed industrial automation systems.

Each module divides inputs into two groups of eight, allowing efficient asynchronous scanning and communication with controllers. The 1791-16A0 supports external power from 85 to 132VAC with a current draw of 150 mA, ensuring reliable operation in demanding environments.

Engineered for seamless integration, the AB 1791-16A0 connects to I/O racks in a daisy-chain configuration. Its embedded design simplifies wiring, reduces installation complexity, and optimizes space in control panels. This module ensures rapid and accurate signal transfer between inputs and controllers, making it ideal for precise industrial process monitoring.

With a maximum off-state voltage of 35VAC and on-state current of 5 mA at 79V minimum, the module maintains reliable detection of input states. Compact dimensions and a lightweight design (1.25 lbs / 0.57 kg) further facilitate easy handling and deployment.

Technical Specifications

Key Features

• Sixteen discrete 120VAC inputs for reliable industrial control

• Divided into two groups of eight for optimized scanning efficiency

• External power supply of 85–132VAC ensures stable operation

• Daisy-chain configuration for seamless integration into I/O racks

• Compact and lightweight design simplifies installation and panel management

• Asynchronous input scanning enables fast and accurate data transfer

FAQ

Q1: Is the 1791-16A0 brand new and factory original?
A1: Yes, the AB 1791-16A0 is 100% brand new and factory original.

Q2: Do you have this module in stock?
A2: Yes, stock is available, and shipping typically takes 3 days to 2 weeks depending on order size.

Q3: Which shipping methods do you offer?
A3: We commonly use DHL, FedEx, and other reliable international logistics providers.

Q4: What if the module has quality issues?
A4: We support returns within 30 days for verified quality problems.

Q5: What is the nominal input voltage for this module?
A5: The 1791-16A0 operates with 120VAC nominal voltage.

Q6: How are the inputs organized in this module?
A6: Inputs are organized into two groups of eight, enabling efficient asynchronous scanning.