Product Details
Configured for overcurrent, earth fault, and motor protection in electrical distribution networks, the Woodward MRI3I5E5DM (MRI3I5E5DM Digital Multifunctional Relay) provides direct physical/electrical execution. Housed within a 60 mm wide frame, this unit processes phase and ground currents to isolate electrical fault conditions across industrial power control platforms.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | MRI3I5E5DM |
| Brand | Woodward |
| Origin | USA |
| Weight | 400 g (0.88 lbs) |
| Dimensions | Frame Size: 60 mm Width |
| Operating Temp | -20 to +60 deg C (-4 to +140 deg F) |
| Power Consumption | Auxiliary Supply Dependent |
| Product Type | Digital Multifunctional Relay |
| Protection Functions | Overcurrent protection, Earth fault protection, Motor protection |
| Logic Capabilities | Programmable logic functions and user-configurable settings |
| Technology | Digital processing architecture |
| Enclosure Form Factor | Compact Panel Mount Enclosure |
Harmonic Distortion Suppression and Vector Feedback Response
The Woodward MRI3I5E5DM relay employs high-speed signal processing algorithms to ensure harmonic distortion suppression across current transformer (CT) input channels. By filtering harmonic frequencies generated during non-linear load variations or transformer energization, the digital sensing circuitry maintains real-time actuator loop feedback response. This precision prevents nuisance tripping while delivering deterministic relay trip signals when true phase overcurrent or zero-sequence earth fault thresholds are exceeded.
Frequently Asked Questions
Q: What protective relaying functions are integrated into the MRI3I5E5DM module?
A: The MRI3I5E5DM integrates digital overcurrent protection, earth fault monitoring, and thermal/current-based motor protection within a single 60 mm wide hardware assembly.
Q: How are logic parameters configured on the MRI3I5E5DM relay?
A: Protection pickup thresholds, time-delay curves, and output logic mapping are defined via programmable user-configurable settings supported on the digital processing unit.
Field Installation Guidelines
- Mount the 60 mm frame width enclosure into the cabinet cutout or DIN/rack panel cutout using standard mounting brackets.
- Verify that secondary current transformer (CT) lines are shorted prior to connecting or disconnecting wiring to the relay input terminals.
- Establish a solid protective earth connection from the rear chassis terminal directly to the enclosure main copper grounding bar.
- Separate low-voltage current sensing cables from high-voltage power wiring to prevent capacitive coupling and signal distortion.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
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