Product Summary
The 1794-IA8I Flex I/O module from Allen-Bradley provides eight isolated AC input points. This robust component monitors 120V AC signals with high reliability. It serves critical roles in motor control centers and control transformers. This model delivers precise signal detection for demanding industrial environments.
Product Procurement & Buyer Guide
This module integrates seamlessly into your existing Flex I/O system. It connects directly to the terminal base unit and I/O bus. 1794-IA8I supports hot-swapping, which eliminates system restart delays. You can insert or remove the module with power on.
Critical Technical Alignment for Your System
The module operates on a nominal voltage of 120 Volts AC. Its on-state voltage range spans from 65V AC to 132V AC. This wide range ensures compatibility with fluctuating power supplies. The minimum on-state current is 7.1 milliamps. The maximum on-state current reaches 14.32 milliamps.
Addressing Industrial Pain Points
This module features 8 fully isolated input points. Isolation prevents ground loop interference in control cabinets. It protects sensitive PLC hardware from voltage transients. The module fits inside the terminal bus for a secure connection. This design saves valuable panel space and simplifies wiring.
Key Specifications for Engineers
The off-state voltage max is 43V AC with a minimum current of 2.9mA. Power dissipation stands at 4.5W at 132V AC max. The FlexBus current draw is only 30mA at 5V DC. This low draw reduces strain on the backplane power supply.
Compatible Hardware and Communication
Compatible terminal bases include the 1794-TBN, 1794-TB2, and 1794-TB3. The module mounts easily on a standard DIN rail. It supports multiple communication options for maximum flexibility. These options include ControlNet, DeviceNet, and EtherNet/IP.
Operating Environment Details
The operating temperature range is 0 to 55 °C (32 to 131 °F). It withstands relative humidity from 5 to 95% noncondensing. For extreme environments, XT versions of this module are available. These versions reduce panel and maintenance costs significantly. The module carries a protection rating of IP20.
