Product Introduction
In Modbus Plus network applications, the Schneider 990NAD23000 provides reliable communication as a dedicated junction box. Part of the Modicon series, this Industrial Automation Module is designed to accept 24 V DC input voltage and utilizes passive cooling, eliminating the need for active fans. This ensures long-term reliability and quiet operation in industrial environments.
Technical Specifications
| Specification |
Value |
| Manufacturer |
Schneider Electric |
| Product Type |
Junction Box |
| Product Line |
Modicon |
| Part Number |
990NAD23000 |
| Network Protocol |
Modbus Plus Network |
| Input Voltage Range |
24 V DC |
| Cooling |
Passive (No active cooling required) |
| Operating Temperature Range |
-20°C to +60°C |
| Mounting |
Wall or Panel Mount |
| Protection Class |
IP20 |
| Connector Type |
Screw Terminals |
| Weight |
1.00 lbs (0.45 kg) |
Industry Applications
The Schneider 990NAD23000 is ideal for automating production lines, process control, and building management systems that rely on Modbus Plus communication. Its passive cooling design makes it suitable for dusty or high-temperature environments where fans might fail. For example, in a Modicon Quantum-based distributed control system, this junction box ensures stable data transfer between remote I/O modules and the controller.
Compatibility & Integration
This module is fully compatible with the Modicon automation platforms: Momentum, TSX Micro, Premium, and Quantum. It operates on the Modbus Plus protocol, which is widely used for peer-to-peer communication between PLCs and field devices. The screw terminal connectors allow for quick and secure wiring, reducing installation time.
Maintenance & Reliability
With no moving parts due to passive cooling, the Schneider 990NAD23000 requires minimal maintenance. The IP20 protection class shields against dust and solid objects. Routine inspection of screw terminal tightness and ensuring the ambient temperature stays within -20°C to +60°C will maximize service life. This low-maintenance design translates to long-term cost savings.
Selection Guide & Purchasing Advice
Before ordering, verify that your network uses Modbus Plus protocol and that the input supply is 24 V DC. The 990NAD23000 is sold as a set of 1 and includes line terminal accessories. You will need wiring tool 043509383 for installation. For a reliable source of genuine Schneider automation spares, consider ubest101 as a trusted supplier.