{"product_id":"mri3i5e5dm-woodward-mri3-series-datasheet-technical-manual","title":"MRI3I5E5DM Woodward MRI3 Series Datasheet \u0026 Technical Manual","description":"\u003ch2\u003eWoodward MRI3I5E5DM MRI3 Series\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eWoodward MRI3I5E5DM\u003c\/strong\u003e, also cataloged as the \u003cstrong\u003eMRI3I5E5DM\u003c\/strong\u003e Digital Multifunctional Relay, operates as a dedicated hardware component for overcurrent, voltage, and frequency protection processing within engine, generator, and electrical distribution networks.\u003c\/p\u003e\n\u003ch3\u003eHardware Specifications\u003c\/h3\u003e\n\u003cfigure class=\"table\"\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/th\u003e\n\u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eMRI3I5E5DM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eWoodward\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.4 - 0.65 kg (variant dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e108 x 70 x 115 mm \/ 140 x 120 x 60 mm \/ 180 x 130 x 60 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temp\u003c\/td\u003e\n\u003ctd\u003e-20 to +70 deg C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003e 8 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInput Voltage\u003c\/td\u003e\n\u003ctd\u003e24-60 VDC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMeasurement Type\u003c\/td\u003e\n\u003ctd\u003eTrue RMS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResponse Time\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 50 ms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInputs\u003c\/td\u003e\n\u003ctd\u003eAnalog (4-20 mA, 0-10 V), digital ON\/OFF, RTD, thermocouple\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutputs\u003c\/td\u003e\n\u003ctd\u003eAnalog (4-20 mA, 0-10 V), relay contacts, PWM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCommunication\u003c\/td\u003e\n\u003ctd\u003eModbus RTU, CAN, Profibus DP, Ethernet TCP\/IP (optional)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProtection Rating\u003c\/td\u003e\n\u003ctd\u003eIP65 (aluminum housing)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCE, UL, RoHS\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/figure\u003e\n\u003ch3\u003eActuator Loop Feedback Response\u003c\/h3\u003e\n\u003cp\u003eThe multifunction device incorporates internal microprocessor sub-circuits capable of managing actuator loop feedback response timelines alongside active fault detection. The hardware configuration processes true RMS measurements to clear phase imbalances and earth faults while executing localized harmonic distortion suppression. Built-in thermal heat sink dissipation profiles stabilize the internal sampling matrix across the 24-60 VDC input power threshold, mitigating component calibration drift under peak auxiliary output loads.\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003eQ: How does the internal hardware manage concurrent communication protocols without dropping protection packets?\u003c\/p\u003e\n\u003cp\u003eA: The internal processing core prioritizes fault evaluation and relay execution loops over secondary tasks, allocating dedicated hardware sub-registers for Modbus RTU, CAN, and Profibus DP telemetry updates.\u003c\/p\u003e\n\u003cp\u003eQ: What is the mechanical trip delay execution performance of the onboard output contacts?\u003c\/p\u003e\n\u003cp\u003eA: The digital relay platform processes input exceptions and shifts the state of the primary physical relay outputs within a total execution window of less than 50 ms.\u003c\/p\u003e\n\u003cp\u003eQ: Can the analog input channels accept direct RTD and thermocouple connections simultaneously?\u003c\/p\u003e\n\u003cp\u003eA: Yes, the multi-channel configurable input interface allows distinct pins to be routed for RTD, thermocouple, or standard 4-20 mA\/0-10 V linear loops based on the hardware sub-board configuration.\u003c\/p\u003e\n\u003ch3\u003eField Installation Guidelines\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure Grounding:\u003c\/strong\u003e Ground the aluminum housing by landing a heavy-gauge copper conductor from the ground lug directly onto the master electrical cabinet grounding terminal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Separation Paths:\u003c\/strong\u003e Separate low-voltage analog inputs (4-20 mA, RTD) from any high-voltage relay switching lines and inductive actuator power conductors inside the panel tracking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShield Continuity:\u003c\/strong\u003e Terminate low-voltage signal shields at a single point on the enclosure entry bulkhead rail to prevent loop currents from corrupting the internal true RMS measurement hardware.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConductor Tightening:\u003c\/strong\u003e Secure all terminal connections using calibrated tools to matching standard engineering torque constraints to eliminate potential loose contacts caused by continuous engine vibration.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Woodward","offers":[{"title":"Default Title","offer_id":43431329169498,"sku":"MRI3I5E5DM","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0710\/5957\/0778\/files\/286._dcfa699e-904b-4bff-a282-47556ad0f52f.jpg?v=1780018389","url":"https:\/\/www.spareoil.com\/products\/mri3i5e5dm-woodward-mri3-series-datasheet-technical-manual","provider":"SpareOil Automation","version":"1.0","type":"link"}