Allen-Bradley 1794-IM8 Flex I/O AC Digital Input Module

Product Overview

The 1794-IM8 is a digital input module from Allen-Bradley. It belongs to the Flex I/O system. This module works with 220V AC inputs. It has 8 nonisolated inputs. Each input handles up to 240V AC. The on-state current reaches 13.21 mA. The off-state current is only 2.6 mA. The nominal input impedance is 22.3 k?. This module draws 12 mA at 240V AC. It offers 250V continuous isolation. The flex bus uses 30 mA at 5V DC. Thermal dissipation is 16.2 BTU/hr at 264V AC. These specs ensure reliable operation in industrial settings.

Application Scenarios

Use the 1794-IM8 for discrete sensing tasks. It works well with limit switches and push buttons. The module suits factory automation lines. It operates in hazardous locations. The temperature range is 0 to 55 degrees Celsius. This makes it fit for many harsh environments. The compact size (94 x 94 x 91 mm) allows easy placement.

Technical Specifications

On-state voltage: 240V AC nominal. On-state current: 13.21 mA maximum. Off-state voltage: 40V AC maximum. Off-state current: 2.6 mA maximum. Nominal input impedance: 22.3 k?. Nominal input current: 12 mA at 240V AC. Isolation voltage: 250V continuous. Flexbus current: 30 mA at 5V DC. Thermal dissipation: 16.2 BTU/hr at 264V AC maximum. The module has 8 key switch positions. It includes 2 signal ports for wiring. The start-up voltage maximum is 10A.

Installation & Maintenance Guide

Mount the module on a DIN rail or with screws. Use a 1794-TBN terminal base. Insert the flex bus fully for operation. Install fuses to protect the device. Ensure proper power supply at all times. The module fits in open-style enclosures. Dedicated wiring labels simplify connections. The enclosure is rated for hazardous locations. Keep operating temperature between 0 and 55 degrees Celsius.

Packing List

One 1794-IM8 Flex I/O module. One product manual included. The package ships via FedEx, UPS, or DHL.