Introduction
The Honeywell 2MLR-AC23-CC Redundant Power Supply Module is a fault-tolerant industrial power solution engineered to deliver continuous, high-availability DC power for mission-critical automation systems. Specifically designed for the MasterLogic™-200 PLC platform, this redundant module features dual AC inputs with automatic load sharing to maintain uninterrupted power even if one source fails. Its robust design, extensive protection features, and clear status indicators make it an ideal choice for control cabinets where reliability, uptime, and resilience are paramount.
Technical Specifications (Including Dimensions & Weight)
| Specification | Details |
|---|
| Model | Honeywell 2MLR-AC23-CC |
| Module Type | Redundant Power Supply Module |
| Input Voltage | AC 100–240 V, 50/60 Hz |
| Redundant AC Inputs | Yes, two independent sources |
| Output Voltage | DC 5 V nominal |
| Output Current | Up to 6 A per supply channel |
| Load Sharing | Automatic, balanced redundant operation |
| Protection | Overload, overvoltage, short-circuit, thermal |
| Indicators | LED indicators for power and fault status |
| Mounting | DIN rail or panel mount |
| Dimensions (W × H × D) | Approx. 60 × 95 × 90 mm |
| Weight | Approx. 0.42 kg |
| Operating Temperature | –20 °C to +70 °C |
| Compatibility | MasterLogic-200 PLC ecosystem |
Applications
The 2MLR-AC23-CC Redundant Power Supply Module is built for scenarios where power reliability cannot be compromised:
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Providing uninterrupted DC power to PLC CPUs and I/O modules
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Supporting continuous process automation systems
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Control cabinets with dual AC feeds for fault-tolerant design
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Industrial production lines requiring high availability
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Manufacturing, refining, chemical processing, and utilities
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Retrofit projects adding redundancy to existing PLC racks
Its dual-input and load-sharing design ensures power continuity even under AC source failure, minimizing downtime and safeguarding control logic.
Advantages
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True Redundancy: Dual AC inputs with automatic load sharing deliver fault-tolerant power.
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Visual Monitoring: Front-panel LED indicators show power presence and fault conditions at a glance.
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Comprehensive Protection: Built-in safeguards protect against overloads, transient spikes, and short circuits.
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Compact & Rugged Design: Fits compact control cabinets and withstands harsh industrial environments.
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Seamless Integration: Designed for direct plug-in compatibility with MasterLogic-200 racks.
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Improved Reliability: Reduces risk of unplanned downtime in critical automation applications.
This module is ideal for systems where reliability, uptime, and maintainability are core design requirements.
Technical FAQs
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What function does the 2MLR-AC23-CC serve?
It supplies redundant DC power to PLC racks to ensure continued operation if one AC source fails.
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How many AC inputs are supported?
Two independent AC inputs support redundant operation.
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What DC output does the module provide?
Regulated DC 5 V output is provided to the PLC system.
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What is the maximum current capacity?
Up to approximately 6 A per supply channel under normal load sharing.
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Does the module have protection features?
Yes — overload, overvoltage, short-circuit, and thermal protection are included.
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Are there indicators for power status?
Yes, LED indicators provide clear visual feedback on power presence and fault conditions.
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What temperature range is supported?
Typical industrial range from –20 °C to +70 °C.
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Can it be mounted in standard control panels?
Yes — it supports both DIN rail and panel mounting.
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Is this module compatible with MasterLogic PLC systems?
Yes, it is engineered for use with the MasterLogic-200 PLC lineup.
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Does dual feed wiring require special configuration?
Standard industrial wiring practices apply; simply connect dual AC feeds for redundancy.
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