The Schneider Electric 140CRA21220C is a robust Modicon Quantum Remote I/O (RIO) Drop Interface Module, engineered to enable seamless communication between distributed I/O racks and the central PLC system. Designed for high-reliability industrial automation environments, this module plays a critical role in extending system architecture beyond the main control rack.
With dual redundant communication ports, the 140CRA21220C ensures continuous data exchange even in the event of a network failure, making it an ideal choice for mission-critical applications. Its proven performance in legacy Quantum systems continues to make it a preferred solution for maintaining and upgrading distributed control systems without full platform replacement.
Technical Specifications
| Specification | Details |
|---|---|
| Manufacturer | Schneider Electric |
| Model | 140CRA21220C |
| Product Type | Remote I/O Drop Interface Module |
| Series | Modicon Quantum |
| Supply Voltage | 24 V DC |
| Voltage Range | 20–30 V DC |
| Supply Current | 1.6 A |
| Inrush Current | 30 A |
| Output Voltage | 5.1 V DC |
| Output Current | 3 A |
| Redundancy | Dual redundant communication ports |
| I/O Capacity | 30 input words / 32 output words |
| Power Dissipation | 11 W |
| Buffer Time | ≤ 1 ms |
| Protection | Short-circuit & overvoltage protection |
| Diagnostics | RAM, checksum, address diagnostics |
| Connection Type | 7-pole terminal block |
| Weight | ~0.7 kg |
| Dimensions | Approx. 315 × 160 × 50 mm |
This module is designed to ensure stable data transmission and high system availability, even in electrically noisy industrial environments.
Recommended Related Models
- Schneider 140CRA93100 – Advanced remote I/O head module
- Schneider 140CRP93100 – RIO communication processor
- Schneider 140CPU67261C – High-end Quantum Hot Standby CPU
- Schneider 140CPS52400C – Redundant power supply module
- Schneider Quantum 140XBP series – Backplane racks
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These models represent a mix of legacy Quantum and modern Schneider platforms widely used in industrial automation systems.
