Technical Specifications Breakdown
Key parameters for the 2MLR-AC22 are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Honeywell |
| Product Number | 2MLR-AC22 |
| Rated Input Voltage | 220 VAC |
| Input Voltage Range | 176V~264VAC |
| Input Frequency | 50 / 60 Hz (47 ~ 63 Hz) |
| Max. Input Power | 110 VA / 42 W |
| Inrush Current | 20A peak and lower (within 8 ms) |
| Efficiency | 65% or higher |
| Input Fuse | Built in (not replaceable by an user) - AC power: 250V/3.15A (Time-lag Type) UL approved - DC power: 125V/10A (Time-lag type) UL approved |
| Allowed Instantaneous Interruption | Within 20 ms |
| Output Voltage | 5VDC (±2%) |
| Output Current | 5.5A |
| Output Power | 27.5W @ 55℃ |
| Over Current Protection | 6.0A~13.0A |
| Purpose RUN contact | Rated switching voltage/current 24VDC, 0.5A |
| Min. Switching Load | 5VDC, 1 mA |
| Response Time | Off→On/On→Off: 10 ms and lower/12 ms and lower |
| Life | Mechanical life: 20 million and more times, electrical life: rated switching current: 100 thousand and more times |
| Voltage Status Display | LED On when output voltage is normal |
| Specification of Cable | 0.75~2mm² |
| Available Clamped Terminal | RAV1.25-3.5, RAV2-3.5 |
| Dimension (W x H x D mm) | 55 x 95 x 90 |
| Weight | 382g |
Industry Applications
This power supply module suits applications that demand stable DC logic power. Typical uses include:
- Automotive assembly lines: Provides consistent 5VDC to PLC I/O racks, reducing nuisance faults.
- Packaging machinery: Handles input fluctuations from 176V to 264VAC, keeping control systems online.
- Water treatment plants: The built-in overcurrent protection (6.0A~13.0A) safeguards against load faults.
By choosing this module, you minimize downtime and avoid costly repairs associated with unstable power.

Installation & Setup Guidance
- Mounting: Install the module on a standard DIN rail or panel. Ensure adequate clearance for ventilation.
- Wiring: Use cable sizes between 0.75 and 2 mm². Connect the AC input to the L and N terminals, observing polarity where marked.
- Fuse: The input fuse is built-in and not user-replaceable. If the fuse blows, the module requires replacement.
- Output: Connect the 5VDC output to the PLC backplane. Verify polarity before powering up.
- Grounding: Follow local electrical codes. A proper earth ground reduces noise and improves stability.
Maintenance & Reliability
- Inspection: Periodically check for loose connections, signs of overheating, or discoloration.
- Cleaning: Keep the enclosure free of dust and moisture. Use a dry cloth or low-pressure air.
- Environment: Operate within the specified input voltage range and frequency. Avoid exposing the module to condensation.
- Lifecycle: The mechanical life exceeds 20 million operations, and electrical life exceeds 100,000 cycles at rated switching current. This ensures long-term reliability.
Power Supply Module for MasterLogic-200
The Honeywell 2MLR-AC22 is a dedicated power supply module engineered for the MasterLogic-200 PLC family. It converts standard AC line power into a stable 5VDC bus, ensuring your control system operates without interruption. This module is a critical component for maintaining uptime in industrial environments where power quality varies.

Compatibility & Integration
The 2MLR-AC22 is part of the Honeywell MasterLogic-200 series. It is designed to power the PLC backplane and connected I/O modules. Verify that your rack configuration matches the power requirements of all installed modules. The module provides a RUN contact output rated at 24VDC/0.5A, which can be used for remote status monitoring.
Selection Guide & Purchasing Advice
When selecting a power supply for your MasterLogic-200 system, confirm the input voltage matches your facility (220 VAC typical). The 2MLR-AC22 offers a wide input range and robust protection. For availability and lifecycle status, contact AutoDCSTech. Our team can help you find the right part and provide competitive pricing.
Troubleshooting & Common Issues
- No output voltage: Check input power and fuse. If the fuse is blown, replace the module.
- LED off: Indicates output voltage is abnormal. Verify load is within 5.5A and no short circuit.
- Overcurrent trips: Disconnect loads and test individually. The protection range is 6.0A~13.0A.
- Intermittent resets: Check input frequency and voltage stability. Ensure the supply is within 176V~264VAC.
Always follow safety procedures when working with live electrical equipment.
Availability & Condition at AutoDCSTech
| Part Number | 2MLR-AC22 |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | US |
