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Overview
The Honeywell 2MLR-AC23 Redundant Power Supply Module delivers stable and continuous power for MasterLogic-200 PLC systems. It supports reliable controller performance in demanding industrial environments where unplanned downtime is unacceptable. The module supplies regulated DC power to CPUs and I/O bases, and its redundant design ensures seamless operation during voltage fluctuations or incoming mains failures. Moreover, its compact size allows easy integration into space-restricted control cabinets without compromising system reliability.
Key Benefits
- The module provides redundant AC-to-DC conversion that keeps control systems running during power disturbances.
- Its compact, panel-friendly footprint helps engineers optimize cabinet layouts.
- The design supports continuous 24/7 operation across oil & gas, petrochemical, and general manufacturing plants.
- In addition, the module offers strong thermal stability and natural cooling for long-term maintenance-free performance.
- Installation follows standard MasterLogic-200 hardware practices, which simplifies commissioning and reduces engineering time.
Technical Specifications
| Attribute | Details |
|---|---|
| Manufacturer | Honeywell |
| Model | 2MLR-AC23 |
| Product Type | Redundant Power Supply Module |
| System Compatibility | MasterLogic-200 PLC |
| Input Voltage | AC 200–240 V, 50/60 Hz |
| Output Voltage | DC 5 V |
| Output Current | 8.5 A |
| Auxiliary Output | 24 VDC, 0.5 A (where applicable) |
| Power Consumption | ≤ 60 VA |
| Inrush Current | ≤ 30 A at 240 VAC |
| Efficiency | ≥ 95% |
| Cooling | Natural air cooling |
| Mounting | DIN rail |
| Dimensions | 55 × 95 × 110 mm |
| Weight | 0.9 lbs |
| Operating Temperature | –10°C to +60°C |
| Storage Temperature | –20°C to +70°C |
| Humidity | 5–95% RH, non-condensing |
Typical Applications
The 2MLR-AC23 supports mission-critical PLC power architecture in process plants where uninterrupted control is required. For instance, engineers deploy this module in burner management systems, compressor controls, and factory production lines that must remain stable during incoming power variations. Moreover, it integrates easily with 2MLRCPUH/T and 2MLRCPUH/F modules, creating a robust and scalable control platform.
Reliability & Service
Honeywell designs the 2MLR-AC23 for long operating cycles with minimal field maintenance. Its natural cooling system reduces moving components, which improves long-term reliability. Furthermore, the module undergoes factory-level inspection to ensure stable output characteristics across various load conditions.
FAQ
Q1: Is the 2MLR-AC23 required for all MasterLogic-200 systems?
It is recommended for applications that demand continuous operation or include redundant PLC architectures.
Q2: Can the module power both CPU and I/O bases?
Yes, it provides regulated power suitable for CPUs and associated I/O modules within the MasterLogic-200 platform.
Q3: Does the module support hot-swap installation?
Most systems require controlled shutdown before replacement, although actual behavior depends on cabinet configuration.
Q4: What industries typically use this module?
Oil & gas, petrochemicals, utilities, water treatment, and general automation industries rely on it for stable PLC performance.
Q5: How is the module cooled?
It uses natural convection cooling, which enhances durability in harsh environments.
