Schneider 140CRA21100 Modicon Quantum DIO Drop Interface Module

What Is the 140CRA21100?

When your automation system demands reliable remote I/O connectivity, the Schneider 140CRA21100 delivers a robust DIO drop interface within the Modicon Quantum platform. This interface module operates with a versatile supply voltage rating of 115/230 VAC and accepts input voltages from 85 to 276 VAC, ensuring stable performance across varying electrical conditions. Designed for single-port operation, it streamlines communication between your controller and field devices.

Technical Specifications Breakdown

The 140CRA21100 offers key performance metrics that matter in industrial environments. It draws a maximum supply current of 0.2 A at 115 V and 0.4 A at 230 V, with an inrush current of 10 A at 115 V and 20 A at 230 V. The module provides a rated power of 50 VA and requires a 1.5 A fuse for protection. It outputs 5.1 V with a nominal output current of 3 A, supporting up to 30 input words and 32 output words. Built-in short-circuit protection and output overvoltage protection safeguard connected equipment.

Industry Applications

In discrete manufacturing lines, the 140CRA21100 handles high-speed I/O data exchange between a Quantum PLC and remote sensor banks. Its 30 input words accommodate numerous digital signals, while 32 output words control actuators and indicators. For process industries like water treatment, the module's wide supply voltage range (85 to 276 VAC) ensures stable operation despite fluctuating mains power. The DIO drop interface reduces wiring complexity and simplifies troubleshooting.

Installation & Setup Guidance

Mount the 140CRA21100 on a compatible Modicon Quantum backplane (available in 2, 3, 4, 6, 10, or 16 positions). Connect the 7-pole terminal block for power and I/O wiring. Ensure the supply voltage is within 85 to 276 VAC and frequency between 47 and 63 Hz. Install a 1.5 A fuse in the supply line as specified. Verify that the module's diagnostic LEDs indicate proper startup and communication.

Maintenance & Reliability

For long-term reliability, inspect the 140CRA21100 periodically for signs of dust or corrosion. The module operates in ambient temperatures from 32 to 140 °F (0 to 60 °C) and can be stored from -40 to 185 °F (-40 to 85 °C). It withstands electrostatic discharge up to 4 kV contact and 8 kV on air per IEC 801-2, plus electromagnetic fields up to 10 V/m from 80 to 2000 MHz. Routine checks of the fuse and terminal connections help prevent downtime.

Selection Guide & Purchasing Advice

Before ordering, confirm your system requires a Modicon Quantum DIO drop interface with a single port. Verify the backplane type and available slots. The 140CRA21100 is certified to UL 508, GOST, C-Tick, DNV, and CSA Class 1 Division 2, making it suitable for hazardous locations. BluePLC Industrial stocks this module and can assist with availability and lifecycle status. Contact us to verify current stock and ensure compatibility with your existing Quantum system.