Schneider 140DAI55300 VAC Discrete Input Module

The Schneider 140DAI55300 is a high-performance 32-point discrete input module designed for Schneider Electric’s Modicon Quantum PLC series. Operating at 115 VAC, this module provides reliable and fast acquisition of high-voltage digital signals, making it suitable for industrial automation, process control, and infrastructure systems.

The module features 32 individually isolated input channels, grouped in sets of 8, offering robust noise immunity and flexible wiring. With fast response times, status LEDs, and industrial-grade construction, the 140DAI55300 ensures reliable operation in harsh environments where high-voltage digital inputs need to be monitored.

Key Features

• 32 high-density digital input channels for 115 VAC signals

• Inputs organized in 4 isolated groups of 8 channels

• High-speed signal detection with fast response times

• Built-in status LEDs for each input and module diagnostics

• High-voltage transient protection and group isolation

• Suitable for monitoring switches, sensors, and field devices

• Compatible with Modicon Quantum automation systems

• Certified for industrial use with global approvals

Technical Specifications

Product Applications

The Schneider 140DAI55300 module is ideal for:

• Industrial machinery requiring high-voltage digital signal monitoring

• Electrical panels and control cabinets in automated processes

• Input monitoring for limit switches, contactors, and pilot devices

• Building management and infrastructure control systems

• Safety circuits where clear signal status is essential

• Process industries requiring reliable 115 VAC input detection

Product Advantages

• High-Density Inputs: Compact 32-channel design reduces cabinet space

• Robust Electrical Isolation: 1780 Vrms group isolation ensures safe operation

• Fast Signal Detection: Quick response times ideal for dynamic processes

• Integrated Diagnostics: Built-in LEDs for easy troubleshooting and status monitoring

• Wide Voltage Tolerance: Handles voltage fluctuations and transients reliably

• Industrial Reliability: Operates in harsh environments with global certifications

• Seamless Integration: Fully compatible with Modicon Quantum PLC systems

Frequently Asked Questions (FAQ)

1. What input voltage range does the module accept?

The module detects logic “1” between 85 and 132 VAC; below 20 VAC is considered logic “0”.

2. How many input channels are available?

There are 32 discrete input channels grouped into 4 isolated sets of 8.

3. Is the module suitable for high-speed signal detection?

Yes, with response times as fast as 4.9 ms for Off to On transitions.

4. What isolation protection does it provide?

Each group is isolated to 1780 Vrms from other groups and the system bus.

5. Can the module handle voltage surges?

Yes, it tolerates up to 200 VAC for 1 cycle and 156 VAC for 10 seconds.

6. Are there status indicators?

Each input has a green LED; the module also features a green bus LED and red fault LED.

7. What is the maximum power consumption?

The module consumes up to 10.9 W and draws 250 mA from the system bus.

8. Which Schneider PLC systems is it compatible with?

It is designed for Modicon Quantum PLC platforms.

9. What certifications does it carry?

CE, UL, cUL, CSA, FM Class 1 Division 2, and RoHS compliance.

10. Is the module suitable for harsh environments?

Yes, with an operating temperature range from 0°C to +60°C and high humidity tolerance.