The Honeywell 2MLR-AC23-CC Redundant Power Supply Module is a critical power management component within Honeywell’s advanced control systems. Designed to ensure continuous and stable operation of control hardware, the 2MLR-AC23-CC provides redundant AC-powered 24 VDC output for critical system modules such as controllers, I/O modules, and network devices.

The module is specifically engineered for industrial environments where loss of control power is unacceptable—power plants, chemical processing units, and large-scale automation systems. It features seamless switchover between primary and backup AC power inputs and high efficiency in DC conversion. With hot-swappable capability and intelligent monitoring, the 2MLR-AC23-CC significantly enhances system availability and operational safety.

Product Specifications

Product Applications

The Honeywell 2MLR-AC23-CC module is deployed across a wide range of industries where redundancy of control system power is required to maintain safety and uptime:

• Power Generation

  Ensures uninterrupted power for DCS controllers, turbine automation systems, and auxiliary controls.

• Oil & Gas Processing

  Provides redundant power for critical field instrumentation, process shutdown systems, and F&G detection panels.

• Chemical & Petrochemical

  Maintains stable control system operation in hazardous and mission-critical process environments.

• Water and Wastewater Treatment

  Provides reliable power to distributed I/O, pump controls, and SCADA equipment.

• Pharmaceutical Manufacturing

  Ensures validated control equipment remains continuously powered during utility fluctuations.

• Mining & Metals Industry

  Maintains process control stability in harsh, vibration-prone environments.

Product Advantages

• High Availability

  Dual input design with automatic switchover ensures continuous DC output, even if one AC source fails.

• Hot-Swappable

  Modules can be replaced without system shutdown, minimizing downtime.

• High Efficiency

  ≥ 92% efficiency reduces energy loss and thermal loading on enclosures.

• Robust Protection

  Advanced protection features safeguard both the power supply and downstream devices.

• Integrated Monitoring

  LED indicators and alarm relay simplify status monitoring and maintenance.

• Flexible Mounting

  Can be mounted in both racks and industrial cabinets to suit varying installation needs.

• Global Certifications

  CE, UL, and CSA compliance ensures suitability for worldwide applications.

• Rugged Industrial Design

  Built to Honeywell’s high standards for operation in demanding process industries.

Frequently Asked Questions (FAQ)

1. What is the function of the 2MLR-AC23-CC module?

   It provides redundant AC-to-DC power conversion to ensure continuous 24 VDC output for control systems.

2. What is the power output of this module?

   The module delivers 24 VDC output with up to 10 A current capacity.

3. Does the module support hot swapping?

   Yes, it can be replaced without powering down the control system.

4. What redundancy features are provided?

   Dual AC inputs with automatic seamless switchover.

5. How efficient is the module?

   The module operates at ≥ 92% efficiency.

6. What protections are built into the module?

   Overcurrent, overvoltage, short-circuit protection are all included.

7. What certifications does this module have?

   It is CE, UL, and CSA certified.

8. What is the physical size and weight of the module?

   Dimensions: 32 x 127 x 127 mm Weight:0.2 kg.

9. Where is this module typically installed?

   Rack-mounted in DCS cabinets or panel-mounted in industrial enclosures.

10. Can the 2MLR-AC23-CC operate in high-humidity environments?

    Yes, it supports up to 95% non-condensing humidity.