ABB Bailey NMRT01 6637313A1 Manual Redundancy Transfer Switch

The ABB Bailey NMRT01 6637313A1 Manual Redundancy Transfer Switch is a specialized module designed to provide manual transfer between redundant control processors in ABB’s INFI 90 Open systems. This unit allows operators to manually select the active processor in redundant configurations, ensuring continued operation in the event of a failure in one of the controllers.

By providing a simple, reliable method for processor switching, the NMRT01 greatly enhances system availability and process reliability. It is an essential component in mission-critical control environments such as power plants, oil refineries, chemical plants, and large-scale manufacturing systems.

Product Specifications

Product Applications

The ABB Bailey NMRT01 module is used across industries that demand high availability and redundancy in control systems:

• Power Generation

  Seamless manual switching between redundant turbine controllers.

• Oil & Gas

  Maintaining process control continuity in upstream, midstream, and downstream operations.

• Chemical & Petrochemical

  Critical for plant-wide distributed control systems requiring high reliability.

• Pharmaceutical Production

  Used in validated environments where manual override of redundancy is part of operational procedures.

• Water & Wastewater Treatment

  Ensures continuous process automation even during controller maintenance or failure.

• Metals & Mining

  Protects production uptime in harsh industrial environments with demanding process control requirements.

Product Advantages

• Simple and Reliable Operation

  Mechanical switching ensures guaranteed operation even in the event of software failure.

• High Durability

  Designed for over 1 million switching cycles for long service life.

• Manual Control in Emergencies

  Provides operators with direct control over system redundancy in emergency or fault situations.

• Passive Operation

  No software dependencies; switching is performed at the hardware level for maximum reliability.

• Visual Status Indication

  Clear LED indicators show which processor is currently active, providing visual confirmation.

• Seamless Integration

  Fully compatible with ABB Bailey INFI 90 Open systems and existing control cabinets.

• Enhanced System Availability

  Reduces potential downtime by allowing fast and controlled switchovers between processors.

Frequently Asked Questions (FAQ)

1. What is the function of the NMRT01 module?

   It allows operators to manually switch between redundant control processors.

2. Is this module compatible with the INFI 90 Open architecture?

   Yes, it is designed specifically for the INFI 90 Open system.

3. Does the NMRT01 require programming?

   No programming required—operation is fully manual via rotary switch.

4. How many processor selections does the switch support?

   Two positions: Primary and Backup.

5. Does the switch provide visual feedback?

   Yes, LEDs indicate which processor is currently active.

6. What is the mechanical lifespan of the switch?

   It is rated for over 1,000,000 switching cycles.

7. What is the operating temperature range of the module?

   From 0°C to +60°C.

8. Is the NMRT01 CE certified?

   Yes, along with UL and CSA certifications.

9. Where is this module commonly installed?

   It is rack-mounted in control system cabinets.

10. Is manual switching safe during operation?

    Yes, manual switching is designed to be safe and does not disrupt power delivery.