The ABB Bailey NMMU02 Module Mounting Unit is a structural rack chassis designed for the ABB Bailey INFI 90 / Net 90 Distributed Control System (DCS). It provides a stable mechanical platform for installing, aligning, and securing control modules within industrial automation cabinets.
Unlike functional control or processing modules, the NMMU02 focuses on system organization, physical stability, and modular expandability. It ensures that multiple Bailey control cards can operate reliably as a unified system, while maintaining proper electrical backplane alignment and airflow management.
In modern industrial environments where uptime and maintainability are critical, the NMMU02 plays a foundational role in ensuring system integrity and long-term serviceability.
Technical Specifications
| Parameter | Details |
|---|---|
| Product Type | Module Mounting Unit / Rack Chassis |
| System Compatibility | ABB Bailey INFI 90 / Net 90 |
| Main Function | Mechanical mounting for DCS modules |
| Module Capacity | Multiple plug-in control modules (system dependent) |
| Backplane Support | Yes (system backplane integration) |
| Structure | Industrial steel rack frame |
| Installation | Cabinet-mounted chassis system |
| Cooling Method | Natural convection airflow design |
| Operating Environment | Industrial automation systems |
| Operating Duty | Continuous 24/7 operation |
The NMMU02 is widely used as a core structural frame in ABB Bailey Net 90 architectures, supporting stable module integration and system expansion.
Physical Dimensions & Weight
| Specification | Value |
|---|---|
| Dimensions (H × W × D) | 508 mm × 178 mm × 330 mm |
| Weight | ~1.0 kg |
The lightweight yet rigid chassis design ensures easy installation while maintaining strong mechanical stability inside industrial control cabinets.
Recommended Related Models
- ABB Bailey NMFP01 Multi-Function Processor Module
- ABB Bailey NMFC02 Multi-Function Controller Module
- ABB Bailey NICS01 Communication Slave Module
- ABB Bailey NIMP01 Processor Module
- ABB Bailey NLIM02 Loop Interface Module
These modules are typically installed into the NMMU02 chassis to form a complete ABB Bailey distributed control rack system.
Popular ABB Bailey Models
- NMMU02 Module Mounting Unit
- NMMU01 Mounting Unit
- NMFP01 Processor Module
- NMFC02 Controller Module
- NPSM02 Power Supply Module
These ABB Bailey components are widely used in legacy DCS installations across global industrial facilities.
