The Schneider Electric 140DAI75300 provides high-density discrete input for the Modicon Quantum platform. This module accepts 32 channels of 230V AC signals directly from field devices. Consequently, it eliminates the need for external signal converters in many industrial applications.
This unit organizes its inputs into two groups, each representing a 16-bit input word. It offers robust electrical isolation and reliable detection for AC voltage signals. Furthermore, the module ensures safe and stable operation even in electrically noisy industrial environments.
Core Electrical Specifications and Performance
The 140DAI75300 module operates across the standard network frequency range of 47 to 63 Hz. It guarantees a solid “ON” state signal for voltages between 165V and 264V AC. Therefore, it provides excellent noise immunity and reliable detection of true input status.
Each channel draws a low input current, typically 11.5 mA at 60 Hz or 9.7 mA at 50 Hz. The input impedance is approximately 26.5 kΩ at 60 Hz, which is primarily capacitive. Additionally, the module features a very low maximum leakage current of just 2.6 mA per channel.
Response Time, Protection, and Physical Details
This input module features a response time that synchronizes with the AC line cycle. The Off-to-On response time ranges from 4.9 to 10.75 milliseconds. Conversely, the On-to-Off response is slightly longer, between 7.3 and 12.3 milliseconds.
The module provides strong isolation, rated at 1780 Vrms for one minute between groups and the bus. It can withstand high voltage surges up to 400V for a single cycle. Moreover, its standard Quantum format and clear LED indicators simplify integration and diagnostics.
Comprehensive Technical Parameters
The table below details the complete technical specifications for the 140DAI75300 AC input module.
| Parameter | Specification |
|---|---|
| Manufacturer | Schneider Electric |
| Product Series | Modicon Quantum |
| Model Number | 140DAI75300 |
| Module Type | 32-Channel Discrete (Digital) Input |
| Input Voltage | 230 V AC |
| Number of Channels / Groups | 32 Channels / 2 Groups (16 bits each) |
| Input Current (per channel) | 11.5 mA @ 57-63 Hz; 9.7 mA @ 47-53 Hz |
| “State 1” Guaranteed Voltage | 165-264 V AC @ 57-63 Hz; 175-264 V AC @ 47-53 Hz |
| “State 0” Guaranteed Voltage | 0-40 V AC |
| Input Impedance (per channel) | ~26.5 kΩ @ 60 Hz; ~31.8 kΩ @ 50 Hz (Capacitive) |
| Frequency Range | 47 – 63 Hz |
| Max Leakage Current (per channel) | 2.6 mA |
| Max Withstand Voltage | 264 V continuous; 312 V for 10s; 400 V for 1 cycle |
| Response Time (Off to On) | 4.9 – 10.75 ms (dependent on line cycle) |
| Response Time (On to Off) | 7.3 – 12.3 ms (dependent on line cycle) |
| Isolation (Group-to-Group / Group-to-Bus) | 1780 Vrms for 1 minute |
| Bus Current Requirement | 250 mA @ 5V DC |
| Max Power Dissipation | 5 Watts |
| Status Indication | 32 Green LEDs (Inputs), 1 Green (Active), 1 Red (Fault) |
| Net Weight | 0.3 kg (0.66 lb) |
| Module Format | Standard Quantum Single Slot |
Integration and Typical Application
The 140DAI75300 connects directly to devices like limit switches, selector switches, and contactors. Its high channel count makes it ideal for centralized panels monitoring extensive AC signal arrays. This design significantly reduces wiring complexity and overall panel space.
Details
| Weight | 0.91 kg |
|---|---|
| Dimensions | 110 × 55 × 90 mm |
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