140CRA21210C

The Schneider Electric 140CRA21210C is a DIO (Digital Input/Output) drop interface module designed for the Modicon Quantum industrial automation platform. This module delivers reliable field‑level digital signal interfacing with built‑in redundancy for improved uptime and expanded control flexibility. It supports wide‑range AC power and integrates protection features to ensure stable operation under varied industrial conditions.

Technical Specifications

Parameter	Specification
Product Type	DIO Drop Interface Module
Platform	Modicon Quantum
Supply Voltage	115–230 V AC (wide range 85–276 V AC)
Supply Frequency	47–63 Hz
Supply Current	Approx. 0.2 A @ 115 V AC / 0.4 A @ 230 V AC
Inrush Current	10 A @ 115 V / 20 A @ 230 V
Rated Power	Approx. 50 VA
Associated Fuse Rating	1.5 A
Output Voltage	5.1 V DC
Nominal Output Current	3 A
Protection	Built‑in short‑circuit & overvoltage protection
I/O Words	30 inputs / 32 outputs
Number of Ports	1 redundant port
Connection Type	7‑pole terminal block
Operating Temperature	0 °C to 60 °C
Dimensions (H×W×D)	Approx. 155 × 110 × 45 mm (standard Modicon Quantum form factor)
Weight	Approx. 0.70 kg

The module’s design and ratings make it suitable for robust discrete control interfacing in distributed automation environments.

Recommended Related Models

140CRA21110C – DIO Drop Interface (single port AC)
140CRA21220C – DIO Drop Interface with 24 V DC input
140NOE21100 – Modbus Communication Module
140CPU31110C – Quantum CPU Processor Module
140XBP01600 – Quantum Backplane Rack

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Application Scenarios

The 140CRA21210C is ideally suited for distributed digital control applications such as:

Modular manufacturing automation systems
Material handling and packaging lines
Distributed I/O interfacing in large process control plants
Upgrade or expansion of existing Modicon Quantum installations
Field signal interfacing where AC drop support and redundancy are required

Its AC power compatibility and redundant port support make it flexible for different system topologies and electrical infrastructures.

Key Advantages

Wide AC Voltage Compatibility: Designed for 115–230 V AC supply and broad voltage tolerance (85–276 V), enabling deployment across varied industrial power systems.
Redundant Port Design: Provides increased reliability in distributed I/O applications where failover capacity is beneficial.
Built‑In Protection: Integrated short‑circuit and overvoltage protection safeguard the module and connected devices.
Flexible Backplane Fit: Compatible with standard Quantum backplane slot sizes (2, 3, 4, 6, 10, and 16 positions).
Standard Industrial Temperature Range: Operates reliably between 0 °C and 60 °C, suitable for general industrial automation environments.

Technical FAQs

What is the primary function of the 140CRA21210C?
It provides a redundant digital I/O drop interface between field I/O devices and a Modicon Quantum PLC system.
What supply voltages can it handle?
It supports 115–230 V AC with a broad range of 85–276 V AC.
Does the module include protection features?
Yes — built‑in short‑circuit and overvoltage protection are standard.
How many I/O points does it support?
It provides 30 digital inputs and 32 digital outputs.
What output rating does it provide?
The module outputs 5.1 V DC at a nominal 3 A.
What type of connection does it use?
A 7‑pole terminal block supports field wiring.
What backplane sizes can it fit?
It fits typical backplane configurations including 2, 3, 4, 6, 10, and 16 slot sizes.
What is its approximate weight?
Around 0.70 kg.
What is the operating temperature range?
Standard industrial range: 0 °C to 60 °C.
Is this module still in production?
According to Schneider documentation, it has been discontinued but can still be sourced through aftermarket suppliers.