{"product_id":"masterlogic-64-point-digital-i-o-relay-module-honeywell-mlc-dr64h-dc","title":"MasterLogic 64-Point Digital I\/O Relay Module Honeywell MLC-DR64H\/DC","description":"\u003ch3\u003eProduct Overview\u003c\/h3\u003e\n\u003cp\u003eThe Honeywell MLC-DR64H\/DC is a high-density hybrid I\/O component engineered for the MasterLogic ML50 PLC series. This module provides a versatile solution for space-constrained control cabinets by integrating 32 discrete DC inputs and 32 relay outputs within a single hardware footprint. Designed for industrial-grade logic control, the MLC-DR64H\/DC facilitates the management of high-point-count systems, allowing for the direct switching of field actuators and sensors. Its relay-based output architecture provides excellent electrical isolation, making it a reliable interface for heterogeneous voltage environments where both AC and DC loads must be controlled from a centralized 24V DC logic platform.\u003c\/p\u003e\n\u003ch3\u003eHardware Technical Parameters\u003c\/h3\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eMLC-DR64H\/DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eI\/O Configuration\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e64 Points (32 DC Input \/ 32 Relay Output)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eLogic Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e24V DC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOutput Contact Rating\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e2A per point (DC24V resistive \/ AC220V cos φ=1)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eMaximum Load Voltage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eAC250V \/ DC125V\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eSwitching Frequency\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eUp to 3,600 operations per hour\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eIsolation Method\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003eRelay Insulation\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eWeight\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.4 kg (Net) \/ 1.32 kg (Shipping weight may vary)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e7 x 14 x 14.5 cm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan\u003e\u003cstrong\u003eOff Leakage Current\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan\u003e0.1mA (at AC220V\/60Hz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eIndustrial Applications and Deployment\u003c\/h3\u003e\n\u003cul class=\"list-paddingleft-2\"\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Density Machine Control:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePerfect for automated assembly lines where dozens of limit switches and pneumatic solenoid valves must be managed by a single PLC unit.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eHVAC and Building Automation:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eControls various motor starters, fans, and dampers across multiple floors while maintaining electrical isolation between the control logic and high-voltage power lines.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePackaging and Material Handling:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eManages complex conveyor systems, sorters, and palletizers that require a high volume of digital triggers and status indicators.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003eWater and Wastewater Treatment:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eProvides the necessary I\/O density for monitoring pump statuses and controlling valve actuators in compact remote terminal units (RTUs).\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cstrong\u003ePower Distribution Monitoring:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eServes as a reliable interface for status monitoring and control of circuit breakers and protection relays.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Can the 32 relay outputs on the MLC-DR64H\/DC handle different voltages simultaneously?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, because the relay contacts provide physical dry-contact isolation, you can switch different voltages across separate common groups, provided they stay within the rated maximums of AC250V or DC125V.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: What is the benefit of the 24V DC input section on this specific module?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The 32 DC inputs are designed to interface seamlessly with standard industrial 24V sensors (PNP\/NPN), allowing for high-speed detection of machine states in a very compact form factor.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: Is there a minimum load requirement for the relay outputs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: Yes, for reliable switching, the module supports a minimum load of DC5V\/1mA. This is important to ensure the relay contacts remain clean and conduct effectively over time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eQ: How does the MLC-DR64H\/DC handle common terminal current?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA: The module is designed with a 5A common terminal capacity, allowing multiple output points to share a single power feed while maintaining safe current levels during simultaneous operation.\u003c\/p\u003e","brand":"Honeywell","offers":[{"title":"Default Title","offer_id":45518937391277,"sku":"MLC-DR64H\/DC","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/1613\/9181\/files\/honeywell-mlc-dr64h-dc-digital-output-module-4mxpppq1lld.jpg?v=1766982317","url":"https:\/\/www.maxwellplc.com\/products\/masterlogic-64-point-digital-i-o-relay-module-honeywell-mlc-dr64h-dc","provider":"Maxwell PLC Ltd","version":"1.0","type":"link"}