Eaton MD51D76X Drive Isolation Transformer - UL Listed

Ventilated, dry-type DT-3 design with aluminum windings delivers efficient heat dissipation and a compact footprint. This reduces enclosure size, lowers cooling energy requirements, and minimizes the risk of overheating during peak loads and sustained operation in hot plant environments. In motor drive installations, the DT-3 configuration translates to safer operations, improved downtime statistics, and longer equipment life across demanding manufacturing lines. Voltage taps provide practical tuning: two at +2.5% and two at -2.5% allow operators to compensate voltage swings from supply lines, long feeder runs, or cable losses. This capability reduces torque ripple, smooths motor acceleration, and lowers nuisance trips in variable-load applications. Installers can set taps in the field without introducing external components, saving commissioning time and reducing field labor costs. At 51 kVA with a 380 V primary and 460Y/266 V secondary, the unit supports high-demand three-phase drive applications at standard 50–60 Hz while preserving voltage regulation under transient loads. The transformer is designed for distribution panels and drive systems where consistent voltage quality is critical for VFD performance and machine uptime. Aluminum windings provide excellent thermal conductivity and corrosion resistance in harsh industrial environments. Frame 914D, together with WS39 weather shield, enables rugged installation in dusty, hot, or moisture-prone environments. The ventilated construction supports continuous operation without enclosure overheating, and the design aligns with Eaton’s installation guides for quick integration into existing panels or new builds. Field engineers benefit from clear documentation, standardized mounting patterns, and minimal enclosure redesigns during retrofits. UL Listed certification underpins safety compliance for electrical equipment in industrial settings, and Eaton's one-year warranty (or 18 months from shipment) adds business assurance. The combination of documented data, installation guidance, and proven performance helps shorten procurement cycles, optimize maintenance budgets, and reduce lifecycle costs. In short, MD51D76X delivers reliable, maintainable power isolation for critical motor-drive applications.