{"product_id":"2mlr-dc42-honeywell-masterlogic-plc-power-supply-module-5vdc-output","title":"2MLR-DC42 Honeywell MasterLogic PLC Power Supply Module 5VDC Output","description":"\u003ch3\u003e\u003cstrong\u003eHoneywell 2MLR-DC42 | MasterLogic PLC Power Supply Module\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #008080;\"\u003eHoneywell 2MLR-DC42\u003c\/span\u003e\u003c\/strong\u003e is a dedicated power supply module for industrial PLC control systems. It converts a 24 VDC input into a regulated 5 VDC output for compatible control hardware.\u003c\/p\u003e\n\u003cp\u003eThe module delivers up to \u003cstrong\u003e7.5 A output current\u003c\/strong\u003e and \u003cstrong\u003e37.5 W output power at 55°C\u003c\/strong\u003e. Its input range accommodates supply variations from 19.2 VDC to 28.8 VDC.\u003c\/p\u003e\n\u003cp\u003eBuilt-in overcurrent protection helps protect the power output during abnormal load conditions. The integrated RUN contact provides a switching interface for external status monitoring. A front-panel LED indicates normal output voltage status.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e01 | Electrical Performance and Power Conversion\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe power conversion stage supplies regulated DC power to compatible PLC hardware. Its specified input range supports practical variations in industrial DC distribution systems.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eHoneywell\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e2MLR-DC42\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Series\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eMasterLogic PLC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePower Supply Module\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Input Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInput Voltage Range\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e19.2–28.8 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInrush Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e80 A peak or lower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eEfficiency\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e65% minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOutput Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 VDC ±2%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Output Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e7.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Output Power\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e37.5 W at 55°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOvercurrent Protection\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e9.0–17.0 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstantaneous Interruption Tolerance\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWithin 20 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eVoltage Status Indicator\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eLED indication for normal output voltage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions (W × H × D)\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e55 × 95 × 110 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e417 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e\u003cstrong\u003e02 | Protection Architecture and Internal Safeguards\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e2MLR-DC42\u003c\/strong\u003e integrates protective components to support stable operation under specified conditions.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput fuse protection:\u003c\/strong\u003e Built-in fuses protect the input circuit. Users cannot replace these fuses.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC fuse specification:\u003c\/strong\u003e 250 V \/ 3.15 A, time-lag type, UL approved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC fuse specification:\u003c\/strong\u003e 125 V \/ 10 A, time-lag type, UL approved.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercurrent protection:\u003c\/strong\u003e The specified protection range is 9.0 A to 17.0 A.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput interruption tolerance:\u003c\/strong\u003e Supports instantaneous interruptions within 20 ms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput monitoring:\u003c\/strong\u003e The LED indicates normal output voltage status.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProtection thresholds do not represent recommended continuous operating currents. Engineers should follow the manufacturer's electrical specifications when evaluating abnormal load conditions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e03 | RUN Contact and External Status Monitoring\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe module provides a RUN contact for external status signaling. This interface supports integration with supervisory circuits and external monitoring equipment.\u003c\/p\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eContact Purpose\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRUN contact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Switching Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e24 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Switching Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.5 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimum Switching Load\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5 VDC, 1 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eOFF to ON Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10 ms maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eON to OFF Response\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12 ms maximum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMechanical Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e20 million operations or more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eElectrical Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100,000 operations or more at rated switching current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eEngineers can use the RUN contact for external status supervision. Confirm the contact logic and wiring arrangement against the official connection diagram before integrating it into an interlock circuit.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e04 | Wiring Requirements and Terminal Selection\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eCorrect conductor selection helps maintain reliable electrical connections. The specified cable range supports common industrial control wiring practices.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupported cable size:\u003c\/strong\u003e 0.75–2 mm².\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable terminal:\u003c\/strong\u003e RAV1.25-3.5.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable terminal:\u003c\/strong\u003e RAV2-3.5.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConnection inspection:\u003c\/strong\u003e Check conductor insertion and terminal fastening.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWiring verification:\u003c\/strong\u003e Confirm polarity before applying DC input power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUse suitable crimping tools for the selected terminal. Follow the manufacturer's recommended tightening torque and wiring diagram.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e05 | Installation and Commissioning Procedure\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eA controlled commissioning process helps identify wiring errors before PLC operation.\u003c\/p\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect the module:\u003c\/strong\u003e Check the housing, terminals, and electrical interfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify input power:\u003c\/strong\u003e Confirm a nominal 24 VDC supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck voltage limits:\u003c\/strong\u003e Keep the input within 19.2–28.8 VDC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConfirm wiring:\u003c\/strong\u003e Check polarity and conductor specifications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVerify installation:\u003c\/strong\u003e Follow the designated MasterLogic mounting arrangement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApply power:\u003c\/strong\u003e Energize the module after completing electrical checks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck output:\u003c\/strong\u003e Measure the 5 VDC output using a suitable meter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInspect status:\u003c\/strong\u003e Confirm the voltage indicator shows normal output status.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest RUN signaling:\u003c\/strong\u003e Verify external monitoring responds correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp\u003e\u003cstrong\u003eSafety note:\u003c\/strong\u003e Isolate the power source before wiring or removing the module. Never attempt to replace its internal fuses. Follow the manufacturer's service instructions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e06 | Maintenance and Field Diagnostics\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eRegular electrical checks help identify developing power supply problems. Focus on input stability, output voltage, and connection integrity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMeasure the 24 VDC input under normal operating load.\u003c\/li\u003e\n\u003cli\u003eCheck the 5 VDC output against its ±2% tolerance.\u003c\/li\u003e\n\u003cli\u003eInspect terminal connections for looseness or overheating.\u003c\/li\u003e\n\u003cli\u003eMonitor the output status LED during operation.\u003c\/li\u003e\n\u003cli\u003eReview the RUN contact response when external alarms occur.\u003c\/li\u003e\n\u003cli\u003eCheck connected loads when overcurrent protection activates.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIf the output becomes unstable, isolate the load and measure the supply independently. This approach helps distinguish module faults from downstream wiring or load problems.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e07 | Selection and System Integration Considerations\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eCorrect selection requires more than matching the input voltage. Engineers should evaluate output demand, load behavior, wiring, and monitoring requirements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput compatibility:\u003c\/strong\u003e The available DC source must remain within the specified voltage range.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput capacity:\u003c\/strong\u003e Calculate the total 5 VDC load before selecting the supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower budget:\u003c\/strong\u003e Keep the continuous load within the 7.5 A and 37.5 W ratings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInrush assessment:\u003c\/strong\u003e Consider the specified 80 A peak limit when evaluating upstream protection.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMonitoring integration:\u003c\/strong\u003e Check RUN contact ratings against the connected circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMechanical compatibility:\u003c\/strong\u003e Verify dimensions and mounting arrangements against the target PLC assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not assume compatibility with every MasterLogic PLC configuration. Confirm the exact base, CPU, and power distribution requirements before ordering.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003e08 | Five Engineering FAQs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: Why should engineers measure the 5 VDC output under actual operating load?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePower supply behavior can differ between unloaded and loaded conditions. A stable unloaded reading does not confirm sufficient current capacity. Measure the output during representative operation to identify voltage drops and load-related instability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ2: How should engineers evaluate the 80 A peak inrush current?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConsider the inrush characteristic when coordinating upstream DC protection and power distribution. Do not size protective devices using steady-state current alone. Check the manufacturer's startup characteristics and the upstream supply specifications.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ3: What should be investigated if the output LED does not indicate normal voltage?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eFirst, verify the input voltage and polarity. Next, inspect downstream wiring and connected loads. Check for overload conditions or short circuits. If the problem remains, isolate the module and arrange further technical inspection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ4: Can the RUN contact directly control a high-current field device?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe specified switching rating is 24 VDC at 0.5 A. This rating limits the permissible direct switching load. For higher-current applications, use an appropriately rated interposing relay or interface device.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ5: When should engineers replace the complete module instead of troubleshooting the external circuit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eConsider module replacement when the input remains within specification but the output stays outside tolerance. First eliminate external short circuits, excessive loads, and loose connections. Since the internal fuses are not user-replaceable, do not attempt internal fuse repairs.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":68034831712438,"sku":"2MLR-DC42","price":166.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/2MLR-DC42-1.jpg?v=1794369537","url":"https:\/\/www.plcsparehub.com\/products\/2mlr-dc42-honeywell-masterlogic-plc-power-supply-module-5vdc-output","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}