The Evolution of Discrete Control
Industrial automation has evolved from relay panels to intelligent, distributed I/O. The Schneider Electric 140DDO35301C is a discrete output module from the Modicon Quantum series, designed to meet the demands of modern control systems. It provides 32 output channels with positive logic (source) at 24 V DC, making it a practical choice for oil, gas, and industrial automation applications.

Technical Specifications
| Specification | Value |
|---|---|
| Output Channels | 32 |
| Output Type | Positive logic (source) |
| Output Voltage | 24 V DC |
| Output Voltage Limits | 19.2…30 V |
| Max Load Current | 16 A per module, 4 A per group |
| Surge Current | 2 A |
| Response Time | <= 0.1 ms (1 to 0), <= 1 ms (0 to 1) |
| Isolation | 1780 Vrms (channels to bus), 500 Vrms (group) |
| Power Dissipation | 5 W |
| Bus Current | 330 mA |
| Operating Temperature | 0 to 60 °C |
| Certifications | CE, UL 508, CSA, FM Class 1 Division 2 |
Key Performance Insights
The 140DDO35301C offers fast response times, with state changes in under 0.1 ms for 1 to 0 transitions and under 1 ms for 0 to 1. This speed suits high-speed sorting and packaging lines. The module handles a maximum load current of 16 A per module, distributed across four groups of eight channels. Each group supports up to 4 A, providing flexibility for mixed loads. The conformal coating (Humiseal 1A33) protects against harsh environments, extending service life in oil and gas installations.

Applications in Oil, Gas, and Manufacturing
In oil and gas, the 140DDO35301C controls solenoid valves, relays, and indicator lights. Its 24 V DC output matches common field device requirements, and the conformal coating resists moisture and chemicals. For manufacturing, the module drives pneumatic actuators and motor starters. The fast response time supports precise timing in assembly lines. With 32 channels, it reduces the number of modules needed, saving panel space and wiring costs.
Integration and Compatibility
The module integrates with Modicon Quantum PLC systems. It requires 2 output words for addressing. When wiring into fieldbus networks, an external gateway or connection module may be needed; confirm cables and gateways with your supplier. The 140DDO35301C includes fault indication for blown fuses and loss of field power, simplifying diagnostics.
Selection and Support
Before ordering, verify your system’s compatibility and current lifecycle status with Oil AutoTech. We provide hands-on technical selection help and fast dispatch, worldwide. For pricing and availability, contact Oil AutoTech today.
Frequently Asked Questions
What is the output voltage of the 140DDO35301C?
It provides 24 V DC output with positive logic (source).
How many output channels does this module have?
It has 32 output channels, organized into 4 groups of 8.
What is the maximum load current per module?
The maximum load current is 16 A per module, with 4 A per group.
Does the 140DDO35301C have conformal coating?
Yes, it features conformal coating Humiseal 1A33 for protection in harsh environments.
What certifications does this module hold?
It is marked CE and certified to UL 508, CSA, and FM Class 1 Division 2.
