Description
schneider TM3DI32K | Modicon TM3 – 32 inputs (HE10) 24Vdc

Description
The Schneider Electric TM3DI32K is a Modicon TM3 discrete input expansion module designed to extend the digital input capabilities of programmable logic controllers (PLCs) in industrial automation, machine control, and electrical control applications.
It features 32 digital inputs operating at 24V DC, with sink or source logic compatibility, making it suitable for receiving signals from sensors, push-buttons, limit switches, proximity sensors, and other industrial field devices.
The Schneider TM3DI32K is compatible with Modicon M221, M241, M251, and M262 logic controllers, providing flexible digital input expansion for industrial automation systems and machinery control applications.
The module features 32 input channels arranged in two groups of 16 inputs, allowing multiple field signals to be monitored through a compact expansion module.
Its HE10 (MIL 20) connector interface supports organized wiring through compatible preassembled cables and connection accessories, helping simplify control panel wiring and installation.
The Schneider Electric TM3DI32K supports a nominal input voltage of 24V DC, with an operating input voltage range of 19.2–28.8V DC and a rated input current of approximately 5mA per channel.
The module recognizes a logic HIGH signal at 15–28.8V DC and a logic LOW signal at 0–5V DC, supporting accurate digital signal acquisition within the specified operating conditions.
Each input channel includes a green LED status indicator, allowing operators and maintenance technicians to monitor input states and identify active field signals during commissioning and troubleshooting.
The Schneider TM3DI32K provides an input response time of approximately 4ms for switching ON and OFF under standard operating conditions, with faster response settings available depending on the hardware version and configured input filter.
Its internal design provides 500V AC isolation between input groups and between input channels and the internal bus, helping maintain electrical separation within industrial control systems.
The module is powered through the Modicon TM3 internal expansion bus, eliminating the need for a separate module electronics power supply while allowing the connected field inputs to operate using the appropriate 24V DC supply.
The compact housing measures approximately 90mm high, 33.5mm wide, and 81.3mm deep, making it suitable for space-efficient installation inside industrial control cabinets.
Installation options include 35mm DIN rail mounting or panel mounting using a compatible fixing kit, providing flexibility for electrical panel builders and automation engineers.
With IP20 protection, an operating temperature range of -10°C to +55°C for horizontal installation, and compliance with IEC 61131-2, the module is suitable for industrial automation applications under the specified environmental conditions.
The Schneider Electric TM3DI32K provides an efficient solution for expanding PLC input capacity, monitoring industrial field devices, and integrating additional digital signals into automated production and machine control systems.
Key Features
The Schneider TM3DI32K is a Modicon TM3 discrete input expansion module featuring 32 digital input channels operating at 24V DC.
It supports sink or source logic, allowing integration with compatible positive and negative logic field devices.
The module is compatible with Modicon M221, M241, M251, and M262 logic controllers.
It features two HE10 connectors for organized connection of 32 digital inputs.
Each input channel includes a green LED status indicator for visual monitoring and troubleshooting.
The module provides 500V AC isolation, approximately 4ms standard input response time, and flexible DIN rail or panel mounting.
Applications
The Schneider TM3DI32K is suitable for industrial automation systems, PLC input expansion, machine control systems, manufacturing equipment, conveyor systems, packaging machinery, industrial production lines, automated assembly systems, sensor monitoring, electrical control panels, motor control systems, material handling equipment, and industrial process monitoring.
It is particularly suitable for applications requiring 32 additional 24V DC digital input channels for compatible Modicon M221, M241, M251, and M262 programmable logic controllers.
