Introduction
Industry has evolved from hardwired relay panels to smart, distributed control systems that demand reliable signal acquisition at every level. The Schneider Electric 140DAI34000C is a discrete input module built for the Modicon Quantum platform, delivering 16 input channels at 24 V AC. It converts field signals into clean digital data for your control system, keeping processes visible and responsive. For oil, gas, and industrial automation teams, this module is a practical building block for both new installations and legacy support.
Technical Specifications
| Parameter | Value |
|---|---|
| Product Type | Discrete input module |
| Product Line | Modicon Quantum |
| Part Number | 140DAI34000C |
| Input Channels | 16 |
| Input Voltage | 24 V AC |
| Input Current | 10.7 to 12 mA |
| Max Leakage Current | 1.9 mA |
| Bus Current Requirement | 180 mA |
| Max Power Dissipation | 5.5 W |
| Addressing Requirement | 1 input word |
| Ambient Temperature | 0 to 60 °C |
| Marking | CE |
| Standards | UL 508, CSA |
| Weight | Approx. 0.3 kg |
Key Specs That Matter
The 16 input channels let you monitor multiple field devices without adding extra modules. With 24 V AC input voltage, the 140DAI34000C suits AC pilot devices and legacy sensors common in older plants. The input current range of 10.7 to 12 mA ensures consistent detection, while the maximum leakage current of 1.9 mA helps prevent false triggers from stray signals. A bus current requirement of 180 mA and maximum power dissipation of 5.5 W keep the module efficient within the Quantum rack. The 0 to 60 °C ambient range supports typical control cabinet environments.
Where It Fits
In oil and gas terminals, this module reads status from AC-powered limit switches and pushbuttons on pump skids. In a packaging line, it captures position feedback from AC photoeyes, feeding the Quantum controller for real-time decisions. For water treatment plants, the 140DAI34000C monitors valve position and alarm contacts, ensuring operators see every change. These scenarios benefit from the module’s reliable AC input handling and compact form factor.
Installation and Maintenance
Mount the module in a Modicon Quantum rack following the manufacturer’s guidelines. Verify that field wiring matches the 24 V AC input rating and that the addressing uses one input word. Keep the cabinet within the 0 to 60 °C range and allow adequate ventilation. Periodically inspect terminals for tightness and check for dust buildup. Because the module dissipates up to 5.5 W, ensure airflow around the rack. For safety-related systems, follow your plant’s maintenance schedule and the manufacturer’s safety manual.
Compatibility and Integration
The 140DAI34000C integrates directly with Modicon Quantum controllers. It requires one input word for addressing, simplifying configuration. When connecting to field devices, use wiring practices that suit 24 V AC signals. If your system uses a fieldbus network, confirm gateway or connection module requirements with your supplier. Oil AutoTech provides hands-on technical selection help to match this module with your existing Quantum setup.
Why Buy from Oil AutoTech
Oil AutoTech specializes in fast-dispatch spares for oil, gas, and industrial automation. We keep ready-to-ship inventory and offer quick worldwide delivery. Our team helps you verify compatibility and lifecycle status before you commit. Contact Oil AutoTech today for pricing and availability.
Frequently Asked Questions
What is the input voltage for the 140DAI34000C?
It operates at 24 V AC, as specified by Schneider Electric.
How many input channels does this module have?
The 140DAI34000C provides 16 input channels.
What is the addressing requirement for this module?
It requires one input word for addressing.
What is the maximum power dissipation?
The module dissipates a maximum of 5.5 W.
What is the operating temperature range?
It operates from 0 to 60 °C.
Please verify current lifecycle status and availability with Oil AutoTech before ordering.
