Schneider Electric 140DDI84100C Discrete Input Module

Schneider Electric's Modicon Quantum 140DDI84100C is a 16‑point discrete input module for the Quantum backplane, organized as two 8‑channel groups of sinking digital inputs. It accepts 10–60 V DC signals and draws current per voltage level (12 V: 5–10 mA; 24 V: 6–30 mA; 48 V: 2–15 mA; 60 V: 1–5 mA). With a 4 ms response time from state 0 to 1 and 1 to 0, the module supports a maximum switching frequency of 100 Hz. Electrical isolation is 2500 Vrms DC for 1 minute between the group and the bus, and 700 Vrms DC for 1 minute between groups, helping to suppress noise on field wiring. Power dissipation is 1 W plus 0.62 W per active input point, and addressing requires 1 input word. The 140DDI84100C is CE‑marked and part of Schneider Electric’s Modicon Quantum automation platform, designed to interface field devices such as pushbuttons, limit switches, and other 10–60 V DC sensors with reliable digital input for control logic and sequencing in industrial environments.