Overview
The 140DDI35310 is a Schneider Modicon Quantum automation platform discrete input module, order code 140-DDI-353-10, providing 32 input points at 24 V DC with negative (source) logic. It draws 1.5 W and mounts on a chassis backplane, occupying 2 input words of addressing space.
The input is protected by a series resistor limited to 4 ohms; absolute maximum input is 30 V continuous, with a 50 V decaying pulse tolerance for 1 ms. Isolation between groups is 500 Vrms for 1 minute, and isolation between group and bus is 1780 Vrms for 1 minute, providing robust noise immunity in industrial cabinets.
Applications
This module is used in Modicon Quantum racks for machine and process control — packaging lines, conveyor systems, water treatment skids, and material handling — where 32 discrete 24 V DC sensor inputs (proximity, limit, photo-eye) need to be brought back to the PLC. The negative-logic configuration suits sourcing-field-device topologies common in North American panel designs.
The 140DDI35310 carries CE marking and is certified to UL 508 and CSA C22.2 No 142, with additional approvals including RINA, GOST, FM Class 1 Division 2, C-tick, and RMRS. It also complies with California Proposition 65. The module is a standard product within the Modicon Quantum platform; confirm current lifecycle status with a quote as the Quantum series transitions to newer platforms.