Industrial 802820-24RK 45C340 Analog Input Module

Reliance Electric's 45C340 analog input module is an eight-channel card for 4-20 mA signals, designed for use with the AutoMax/Automate PLC family. Identified by part number 802820-24RK (also cataloged as J-3048A in some listings), this module accepts eight independent 4-20 mA current-loop inputs and converts them to digital values the PLC can read for process monitoring. As part of Reliance's Automate I/O lineup, the 45C340 is typically mounted in a compatible I/O rack and connected to an AutoMax controller to capture operating data from field transmitters such as flow meters, level sensors, and temperature probes. The eight-channel design makes it suitable for multi-point instrumentation in industrial environments where 4-20 mA signals predominate. This specific analog input card is consistently described across catalogs as an 8-channel 4-20 mA input module and is associated with Reliance's Automate/AutoMax product ecosystem. Notably, retailers list the 45C340 as discontinued, indicating limited availability new from the manufacturer and a reliance on refurbished or secondary-market stock from third-party distributors. Whether you're maintaining an existing automation setup or evaluating legacy hardware, the 45C340 provides eight 4-20 mA inputs that integrate with compatible Reliance PLCs to convert analog process signals into digital readings for real-time control and monitoring.