MRI3I5E5DM Woodward MRI3 Series Datasheet & Technical Manual

Availability: 10 left in stock

Woodward MRI3I5E5DM MRI3 Series The Woodward MRI3I5E5DM, also cataloged as the MRI3I5E5DM Digital Multifunctional Relay, operates as a dedicated hardware...

SKU: MRI3I5E5DM

Manufacturer: Woodward
Product No.: MRI3I5E5DM
Product Type: Current Sensing Cards
Product Origin: USA
Payment:T/T, Western Union
Weight: 650g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Woodward MRI3I5E5DM MRI3 Series

The Woodward MRI3I5E5DM, also cataloged as the MRI3I5E5DM Digital Multifunctional Relay, operates as a dedicated hardware component for overcurrent, voltage, and frequency protection processing within engine, generator, and electrical distribution networks.

Hardware Specifications

Parameter	Specification
Model	MRI3I5E5DM
Brand	Woodward
Origin	USA
Weight	0.4 - 0.65 kg (variant dependent)
Dimensions	108 x 70 x 115 mm / 140 x 120 x 60 mm / 180 x 130 x 60 mm
Operating Temp	-20 to +70 deg C
Power Consumption	8 W
Input Voltage	24-60 VDC
Measurement Type	True RMS
Response Time	< 50 ms
Inputs	Analog (4-20 mA, 0-10 V), digital ON/OFF, RTD, thermocouple
Outputs	Analog (4-20 mA, 0-10 V), relay contacts, PWM
Communication	Modbus RTU, CAN, Profibus DP, Ethernet TCP/IP (optional)
Protection Rating	IP65 (aluminum housing)
Certifications	CE, UL, RoHS

Actuator Loop Feedback Response

The 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.

Frequently Asked Questions

Q: How does the internal hardware manage concurrent communication protocols without dropping protection packets?

A: 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.

Q: What is the mechanical trip delay execution performance of the onboard output contacts?

A: 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.

Q: Can the analog input channels accept direct RTD and thermocouple connections simultaneously?

A: 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.

Field Installation Guidelines

Enclosure Grounding: Ground the aluminum housing by landing a heavy-gauge copper conductor from the ground lug directly onto the master electrical cabinet grounding terminal.
Cable Separation Paths: 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.
Shield Continuity: 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.
Conductor Tightening: Secure all terminal connections using calibrated tools to matching standard engineering torque constraints to eliminate potential loose contacts caused by continuous engine vibration.

What's clients say about us

Excellent Emergency Support!

Our production line was down due to a faulty Bently Nevada monitor. We found it in stock here and they shipped it via DHL immediately. Back in operation within 48 hours—truly a lifesaver for our plant.

Mark Thompson

Maintenance Manager, USA

Reliable Source for New Spares

Finding brand new, original modules is critical for our safety. This team delivers factory-fresh components with full certification. Their commitment to only selling new products makes them our most trusted partner.

Robert Hoffmann

Engineering Lead, Germany

Top-tier Service and Quality

We have sourced Honeywell and Schneider parts here for two years. Every shipment arrives well-packaged with original factory seals intact. Clear communication and the best lead times in the industry.