Schneider Electric 140DAI44000 48V AC Input Module

Core Module Specifications

• Brand: Schneider Electric
• Model: 140DAI44000
• Product Type: 16-point discrete input module
• Input Voltage: 48V AC nominal operating voltage
• Input Current: 8-12 mA per point at 48V AC
• Response Time: ≤15 ms for state detection
• Isolation Voltage: 1500V RMS channel-to-bus
• Frequency Range: 47-63 Hz operational capability
• Input Impedance: 4.7 kΩ per point
• Power Consumption: 2.8W typical from backplane

Environmental Durability

• Operating Temperature: 32°F to 140°F (0°C to 60°C)
• Storage Temperature: -40°F to 185°F (-40°C to 85°C)
• Humidity Rating: 80% maximum non-condensing
• Altitude Maximum: 3,280 feet (1,000 meters)
• Electrostatic Discharge: 4kV contact, 8kV air immunity
• Vibration Resistance: 5-500 Hz, 2g amplitude
• Shock Withstand: 30g for 11ms duration

System Integration Features

• Requires only 1 input word in controller memory mapping
• Backplane current requirement: 280 mA maximum
• LED status indicators for all 16 input channels
• Standard Modicon Quantum form factor installation
• Grouped in 4-channel banks for easy troubleshooting
• Diagnostic coverage for field wiring and sensor status

Electrical Performance

• Off-state leakage current: <1.5 mA per channel
• On-state voltage drop: <3.0V at maximum current
• Noise immunity: 1500V surge withstand capability
• Common mode rejection: 60 dB at 50/60 Hz
• Input filtering: 3-5 ms noise rejection setting
• Transient protection: Built-in for voltage spikes

Shipping & Package Details

• Package contains one 140DAI44000 input module
• Dimensions: 12.2 × 6.4 × 1.7 inches (31 × 16.2 × 4.3 cm)
• Shipping weight: 18.3 ounces (519 grams)
• Available via FedEx, UPS, and DHL express shipping
• Includes 12-month comprehensive warranty protection

Installation & Applications

• Mounts directly to Quantum baseplate or rail
• Accepts standard 48V AC industrial control signals
• Ideal for limit switches and proximity sensors
• Supports manual control stations and selector switches
• Works with pushbuttons and other AC control devices
• Provides reliable machine status monitoring

Technical Support Questions

• What types of field devices work best with this module?
• This module perfectly interfaces with 48V AC limit switches, pushbuttons, and proximity sensors.
• How does the module handle electrical noise in industrial environments?
• Built-in filtering and 1500V isolation provide excellent noise immunity for reliable operation.
• What maintenance practices extend module service life?
• Regular inspection of field wiring and cleaning of connections ensures long-term reliability.
• Can this module detect faulty field devices or wiring problems?
• LED status indicators and input monitoring help identify open circuits and device failures.
• What system configuration is needed for proper module operation?
• The module requires one input word assignment and proper 48V AC field power supply.

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