Product Overview

The MC-TDIA12 (51304439-175) is a high-density Digital Input Field Termination Assembly (FTA) specifically designed for the Honeywell TDC 3000 and Experion® PKS control systems. Unlike standard 24VDC modules, the MC-TDIA12 is engineered to interface directly with 120VAC discrete field signals, acquiring data from high-voltage switches, motor contactors, and industrial relays. It provides 32 channels of isolated acquisition, converting AC field-side voltage into reliable digital data for the controller backplane. This module is a mechanical necessity for legacy infrastructure and heavy industrial applications where 120VAC control circuits are standard, ensuring that high-voltage sensing does not compromise system integrity or personnel safety.

Detailed Technical Specifications