The 140DAI75300C belongs to the Modicon Quantum series from Schneider Electric. It functions as a discrete input module for reading AC field devices. Specifically, it accepts 230 VAC signals from switches, sensors, or limit switches. You get 32 input channels in one compact module. Therefore, it saves space in your control rack.
Additionally, the 140DAI75300C requires only 2 input words for addressing. This makes programming simple in Concept, ProWORX 32, or Unity Pro. Furthermore, the module carries a conformal coating. That coating protects against humidity and light contaminants. For industrial environments, this is a major advantage.
Several parameters define the performance of this module. The input voltage is 230 VAC with a guaranteed On state from 165 to 264 VAC (57-63 Hz). For 47-53 Hz, the On state starts at 175 VAC. The Off state remains below 40 VAC for both frequency ranges. Input current sits between 9.7 and 11.5 mA depending on line frequency.
Maximum leakage current equals 2.6 mA. This keeps false signals away from your logic. Bus current requirement is 250 mA from the backplane. Power dissipation stays at only 5 watts. Therefore, heat buildup inside the rack remains low. Response time varies with line cycles. For Off-to-On, it ranges from 4.9 to 0.75 ms per line cycle. For On-to-Off, you see 7.3 to 12.3 ms.
The 140DAI75300C offers strong electrical isolation. Between groups of channels, isolation reaches 1780 Vrms for one minute. Similarly, between any group and the backplane bus, it also reaches 1780 Vrms. This protects your controller from field-side surges.
Moreover, the module carries a conformal coating labeled Humiseal 1A33. This treatment resists moisture and mild airborne contaminants. Additionally, it meets UL 508 and CSA C22.2 No 142 standards. It also holds FM Class 1 Division 2 certification. Therefore, you can use it in hazardous locations with confidence.
The 140DAI75300C operates between 0 and 60 degrees Celsius. Storage temperature ranges from -40 to 85 degrees Celsius. Relative humidity can reach 95 percent without condensation. This is much higher than many competing modules. For instance, you can install it in non-condensing humid environments.
Operating altitude goes up to 5000 meters. That is well above the 1000m limit of many other modules. Hence, the 140DAI75300C suits high-altitude plants. Furthermore, it resists electrostatic discharge up to 4 kV contact and 8 kV air. It also tolerates electromagnetic fields of 10 V/m from 80 to 2000 MHz.
First, turn off all power to the Quantum rack. Then select an empty standard-format slot. Insert the 140DAI75300C firmly into the backplane. Secure it with the locking tabs at top and bottom. After that, connect your 230VAC field wires to the front terminal block.
Specifically, each of the 32 channels connects to one input terminal. You also need a common return for each group. Next, configure the module in your software. In Unity Pro or ProWORX 32, assign the two input words. Finally, test each channel with a known signal source. Green LEDs on the front panel indicate active inputs.
Additionally, one green LED shows bus communication is present. One red LED lights up for an external fault. Therefore, troubleshooting becomes straightforward. Keep the cabinet clean and free from dripping liquids. Although the coating helps, it is not a replacement for a dry enclosure.
One 140DAI75300C discrete input module
One terminal block (removable, 32 points)
One quick reference card
No certificates or warranty papers are included
We ship using FedEx, UPS, or DHL. Tracking numbers are provided for every order.
1. Can the 140DAI75300C accept 120VAC signals?
No. This module is designed specifically for 230 VAC. Using 120VAC may not reach the guaranteed On voltage threshold. Therefore, choose a different module for 120VAC applications.
2. What software supports the 140DAI75300C?
Concept, ProWORX 32, and Unity Pro all support this module. You must configure the two input words correctly in the I/O map.
3. How does the conformal coating help in real plants?
The coating resists humidity and mild airborne contaminants. For instance, it works well in textile or packaging plants where light dust exists. However, it does not replace a sealed enclosure.
4. What is the maximum altitude for operating this module?
The 140DAI75300C operates up to 5000 meters. This is much higher than many Quantum modules. Therefore, it suits high-altitude industrial sites.
5. Does the module show which input is active at a glance?
Yes. There are 32 green LEDs on the front panel. One LED per channel lights up when that input receives a valid On signal. Additionally, a green Active LED confirms bus communication.
| Brand Name | Schneider Electric |
| Model No. | 140DAI75300C |
| Product Type | Discrete Input Module |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
