Eaton Motor drive isolation transformer MD75E77CU - 75KVA
Part Number: MD75E77CU
Quick Summary
Eaton Motor drive isolation transformer MD75E77CU delivers isolated power for drive systems in industrial automation applications. This solution minimizes control-system damage from voltage spikes and harmonics common with VFD-driven lines, reducing downtime and maintenance costs. Certifications vary by installation; contact the manufacturer for the latest CE, SIL, and IP ratings to ensure compliance in your region. With a 75 kVA rating and ventilated cooling, it supports reliable operation under peak loads while helping engineers optimize panel layouts and lifecycle costs for manufacturing and process environments. Designed for integration with Eaton and third-party motor drives, the unit supports straightforward installation, accurate transformer phasing, and predictable thermal performance.
Product Information
Extended Description
MD75E77CU Eaton: Eaton Motor drive isolation ventilated transformer 75 KVA DRIVE ISOL XFMR 3PH 480 DELTA-240 DELTA 150C RISE
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD75E77CU
UPC
786680140198
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
877 lb
Certifications
Contact Manufacturer
Type
Ventilated transformer
Drive isolation and EMI mitigation → Protects drive electronics from line disturbances, reducing inverter faults and extending component life. Application: VFD panels, servo drives, and multi-drive racks in manufacturing where clean power directly influences throughput. 75 kVA rating with ventilated cooling → Maintains stable temperatures under peak loads, preserving insulation and extending transformer life. Application: large motor drives and centralized power conversion in automotive, packaging, and logistics facilities. 3-phase 480V delta input to 240V delta output → Simplifies integration with common industrial equipment, reducing installation steps and cabinet space. Application: control panels and motor starters in process lines demanding a reliable 240V delta supply. 150°C rise rating → Robust performance in hot environments and during transient spikes, protecting windings and insulation. Application: continuous-operation facilities such as metals, plastics, and packaging lines. Documentation and procurement support → Access Eaton catalogs and the MD75E77CU datasheet to streamline wiring, phasing, and safety data. Application: project teams, distributors, and maintenance engineers coordinating panel integration.
Get a Quick Quote for a Eaton MD75E77CU
Chat with us on WhatsApp - fast responses guaranteed
Need to speak with someone? We'll call you back within 2 hours during business hours
Interested in Eaton MD75E77CU?
Enquire Now
FAQs
MD75E77CU is a three-phase, 75 kVA drive isolation transformer with 480V delta input and 240V delta output. It is intended for installation inside standard electrical switchgear, control panels, or drive enclosures with adequate ventilation. Ensure proper clearance and wiring per Eaton’s MD75E77CU datasheet to maintain cooling performance and electrical clearances.
Best suited for motor-drive systems and power-control panels in manufacturing, plastics, packaging, and material handling. The 75 kVA rating helps supply multiple drives while maintaining voltage stability. Use it where clean power and galvanic isolation protect drives from line disturbances, reduce EMI, and improve overall uptime.
The unit provides 75 kVA, three-phase operation with 480V delta input and 240V delta output, and a 150°C rise rating. It uses a ventilated cooling method and weighs approximately 877 lb. Refer to the MD75E77CU datasheet for wiring diagrams, phasing, and installation instructions to ensure proper commissioning.
Certification availability varies by region and application. Eaton lists certifications as dependent on installation. For your project, verify CE, SIL, and IP requirements with Eaton or your distributor before ordering to ensure compliance with local regulations and standards.
Eaton provides a specification sheet and the transformer catalog for MD75E77CU, along with product datasheets accessible via Eaton’s site. This documentation includes wiring, phasing, cooling, and safety data needed for accurate procurement, quick approvals, and compliant maintenance planning.