Modicon 140CRA21120C Remote I/O Adapter Schneider

Overview

The Schneider Electric 140CRA21120C is a DIO drop interface for Modicon Quantum systems. It operates on 24 VDC supply with 20-30 V range. 

Key Specifications

• Manufacturer: Schneider Electric – Modicon Quantum series
• Model: 140CRA21120C – DIO drop interface
• Supply Voltage: 24 VDC (20-30 V range)
• Output: 5.1 V at 3 A nominal current
• Inrush Current: 30 A at 24 V
• Protection: Short-circuit and overvoltage protection included

Environmental Durability

• Conformal coating (Humiseal 1A33) protects against harsh conditions.
• Operates at 0-60 °C with 95% humidity without condensation.
• Altitude rating up to 5000 m for high-elevation installations.
• ESD immunity: 4 kV contact / 8 kV air (IEC 801-2).

Compatibility

• Supports 30 I/O words (30 input / 32 output).
• Compatible with 2, 3, 4, 6, 10, and 16 position backplanes.
• 7-pole terminal block for easy field wiring connections.
• Certifications: UL, CSA Class 1 Division 2, DNV, GOST, C-tick.

Package & Shipping

• Dimensions: 5.0 × 16.5 × 31.5 cm, net weight 0.685 kg.
• Includes: One 140CRA21120C module with documentation.
• Shipping: Fast delivery via FedEx, UPS, or DHL.

FAQ

Q: What does DIO drop interface mean?

A: It connects remote I/O networks to the Quantum backplane. The module acts as a communication adapter between field devices and the processor.

Q: How do redundant ports work?

A: Two ports provide dual communication paths. If one fails, the other maintains network connection automatically without interruption.

Q: What backplanes work with this module?

A: It fits standard Quantum backplanes with 2, 3, 4, 6, 10, or 16 positions. Choose based on your I/O requirements.