Schneider Electric 140DAI75300 Discrete Input Module

Product Description

The 140DAI75300 by Schneider Electric is a high-density AC discrete input module engineered for the Modicon Quantum automation platform. Designed to interface directly with field devices operating at mains voltage levels, this module provides 32 input channels organized into four isolated groups, ensuring stable signal acquisition in electrically noisy industrial environments.

Unlike low-voltage DC input modules, this version is specifically optimized for 230 VAC signal detection, making it suitable for applications where direct connection to AC-powered sensors, relays, and switches is required. The module integrates robust isolation, capacitive input impedance, and configurable response timing to ensure accurate state recognition across varying frequency ranges.

The 140DAI75300 has been discontinued, with lifecycle support available until the end of service period. For new installations, migration to the Modicon X80 platform is typically recommended.

Technical Specifications

General Parameters

• Manufacturer: Schneider Electric
• Product Series: Modicon Quantum
• Model: 140DAI75300
• Module Type: AC Discrete Input Module
• Total Inputs: 32 channels
• Channel Grouping: 4 groups (isolated)
• Addressing Requirement: 2 input words
• Software Compatibility: Concept, Unity Pro, ProWORX 32

Electrical Characteristics

• Rated Input Voltage: 230 VAC
• Frequency Range: 47–63 Hz
• Voltage State ON:
  • 165–264 VAC (57–63 Hz)
  • 175–264 VAC (47–53 Hz)
• Voltage State OFF: 0–40 VAC
• Input Current:
  • 11.5 mA @ 57–63 Hz
  • 9.7 mA @ 47–53 Hz
• Input Impedance:
  • 26.5 kΩ capacitive @ 57–63 Hz
  • 31.8 kΩ capacitive @ 47–53 Hz
• Maximum Leakage Current: 2.6 mA
• Absolute Maximum Input:
  • 264 VAC continuous
  • 312 VAC (10 seconds)
  • 400 VAC (1 cycle)

Performance Characteristics

• Response Time (Off → On): 0.75–4.9 ms (line cycle dependent)
• Response Time (On → Off): 7.3–12.3 ms
• Isolation:
  • Group-to-group: 1780 Vrms
  • Group-to-backplane: 1780 Vrms
• Filtering: Line-cycle dependent AC filtering

Diagnostics & Indicators

• 32 green LEDs for individual channel status
• 1 green LED for module active status
• 1 red LED for external fault indication

Power & Thermal

• Backplane Current Consumption: 250 mA
• Power Dissipation: ~5 W

Mechanical & Environmental

• Form Factor: Standard Quantum single-slot module
• Weight: 0.7 lb
• Operating Temperature: 0 to 60 °C
• Storage Temperature: –40 to 85 °C
• Humidity: Up to 95% (non-condensing)
• Operating Altitude: Up to 5000 m

Applications

• Monitoring AC-powered limit switches and pushbuttons
• Industrial relay and contact status detection
• Process automation systems using mains-level signals
• Legacy Quantum PLC installations requiring high channel density
• Electrical control panels with direct AC signal interfacing

Replacement & Migration

The 140DAI75300 has been discontinued since January 2023, with service support available until December 2030. Recommended migration option:

• Schneider Electric BMXDAI0805 (Modicon X80 platform, 230 VAC input module)

FAQ

Q: Is the 140DAI75300 compatible with 24VDC signals? A: No. This module is specifically designed for 230 VAC inputs. Using DC signals may result in incorrect operation or damage.

Q: How many input groups are isolated? A: The module divides 32 inputs into four isolated groups, improving noise immunity and electrical protection.

Q: What PLC systems support this module? A: It is designed exclusively for the Modicon Quantum platform and works with Concept, Unity Pro, and ProWORX 32 software.

Q: What is the recommended upgrade path? A: Schneider Electric recommends transitioning to the Modicon X80 series, particularly the BMXDAI0805 for similar AC input requirements.