Schneider Electric TM3DI32K Discrete Input Module

The Schneider Electric TM3DI32K is a 32-input discrete input expansion module for the Modicon TM3 I/O system, delivering 24 V DC digital input channels via HE10 terminals. It is designed to extend the input capacity of TM3-based controllers and is compatible with Modicon M221, M241, M251 and M262 controllers, enabling larger sensor and switch networks within a single modular I/O architecture. With 32 input points, the TM3DI32K provides a dense interface for signals from standard 24 V DC field devices, wired through robust HE10 terminals that Schneider Electric uses for TM3 I/O connections. As part of the Modicon TM3 family, it integrates into the broader TM3 expansion ecosystem and supports configuration and commissioning through EcoStruxure Machine Expert, helping engineers maintain a uniform hardware and software interface across the system. The 24 V DC signaling aligns with common factory sensors and switches, simplifying integration into existing control schemes and promoting scalable I/O expansion as needs grow. By consolidating inputs on a single TM3 module, the TM3DI32K can help reduce wiring complexity and panel space in compact automation applications while preserving the TM3 compatibility with M2xx controllers.