Schneider 140DDI35300 Discrete Input Module

Description

The Schneider 140DDI35300 Discrete Input Module is a high-performance component of the Modicon Quantum series, designed for industrial automation signal acquisition. It features 32 discrete input channels, organized into 4 groups of 8 channels each, to support simultaneous connection of multiple digital input devices. Configurable for 24V DC sink/source input types, it operates within a voltage range of 19.2V to 30V DC, with a rated voltage of 24V DC, and draws a typical input current of 3mA per channel at 24V DC.

Key technical specifications include an input response time of ≤1ms (OFF to ON), photoelectric isolation between channel groups with 500V AC insulation, a backplane power consumption of 5V @ 150mA, and a bus current requirement of approximately 330mA. The module offers robust protection features, including power polarity reverse protection and overvoltage protection, and has an input impedance of 2500 ohms for stable signal transmission.

Its practical design highlights include a compact, high-density form factor to save rack space, a removable terminal block supporting wire diameters of 0.5 to 2.5 square meters, and per-channel LED status indicators for quick visual diagnostics. It operates in temperatures ranging from -25 degrees Celsius to 60 degrees Celsius, with a storage temperature range of -40 degrees Celsius to 85 degrees Celsius, and has an IP20 protection rating. Ideal for power, chemical, and machinery industry automation systems, it is used for limit switch/proximity switch monitoring, emergency stop button status collection, and equipment operation status (running/fault/alarm) monitoring.