Schneider Electric 140CRA21120 Quantum DIO Interface Module

Product Description

The 140CRA21120 from Schneider Electric is a distributed I/O (DIO) drop interface module developed for the Modicon Quantum automation platform. It enables communication between the Quantum controller and remote I/O drops via dual redundant channels, ensuring higher system availability in critical applications.

Powered by a 24 V DC supply, this module integrates directly into Quantum racks and supports stable data exchange for distributed architectures. Its built-in protection features and diagnostic capabilities make it suitable for continuous operation in industrial environments.

Technical Specifications

Environmental and Compliance Data

• Operating temperature: 0 to 60 °C
• Storage temperature: -40 to 85 °C
• Relative humidity: up to 95% (non-condensing)
• Operating altitude: up to 5000 m
• ESD immunity: 4 kV contact, 8 kV air (IEC 801-2)
• EMC immunity: 10 V/m (80…2000 MHz, IEC 801-3)
• Certifications: UL 508, CSA Class I Division 2, DNV, GOST, C-Tick

Key Features

• Dual redundant communication ports for improved network reliability
• Designed specifically for Modicon Quantum distributed I/O systems
• Wide DC input range supports industrial power conditions
• Integrated electrical protections enhance system safety
• Real-time diagnostics for memory and communication monitoring

Applications

• Redundant distributed I/O systems in process industries
• Power generation and energy distribution control systems
• Oil & gas and chemical plant automation
• Large-scale manufacturing requiring fault-tolerant I/O communication

FAQ

What distinguishes the 140CRA21120 from single-port models? This module provides two independent communication channels, allowing redundancy and improved fault tolerance compared to single-port variants.

What power supply is required? It operates on 24 V DC with a permissible range of 20 to 30 V DC.

Is this module suitable for harsh industrial environments? Yes, it meets industrial EMC and environmental standards and includes protection against electrical faults.