Eaton MD51E91FCU Motor drive isolation transformer - 0.50KVA
Part Number: MD51E91FCU
Quick Summary
The Eaton MD51E91FCU motor drive isolation ventilated transformer provides clean, isolated power for motor drives in industrial automation. Engineers often wrestle with drive noise, overheating, and downtime that disrupt production. Commonly relevant certifications to verify include CE for safety, UL recognition for electrical components, and IP ratings for enclosure protection. This module delivers reliable isolation, compact ventilation, and copper-wound efficiency, helping support uptime and compliance in automated manufacturing.
Product Information
Extended Description
MD51E91FCU Eaton: Eaton Motor drive isolation ventilated transformer 0.50 KVA DRIVE ISOL 3PH 460 DELTA-230Y/133 115C RISE,COPPER
Product Name
Eaton Motor drive isolation ventilated transformer
Catalog Number
MD51E91FCU
UPC
786680134678
Product Length/Depth
0.001 in
Product Height
0.001 in
Product Width
0.001 in
Product Weight
590 lb
Certifications
Contact Manufacturer
Type
Ventilated transformer
Ventilated construction delivers enhanced cooling under drive loads, lowering thermal stress on windings and prolonging transformer life. The 0.50 KVA rating with 3-phase 460 V delta input and 230Y/133 V output provides a robust, stable power source for VFDs and control panels, improving drive performance and reducing nuisance tripping. Copper windings offer low impedance and better thermal stability, translating into higher efficiency and lower operational losses. Isolating the drive power reduces common-mode noise and transients, protecting sensitive drive electronics and extending component life. The rugged design and 590 lb weight support secure, vibration-resistant installation in demanding industrial environments, with installation and service benefits from Eaton’s documented specifications.
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FAQs
The MD51E91FCU is designed for motor drive isolation in 3-phase drive systems, delivering a clean, isolated power supply to VFDs and control panels. With a 0.50 KVA rating and 460 V delta input to 230Y/133 V output, it's well suited for machine automation lines where noise immunity and protection of drive electronics are critical.
Install by connecting the 3-phase primary to a 460 V delta supply and the secondary to 230Y/133 V as specified, ensuring proper ventilation around the ventilated transformer body. Secure mounting, observe clearances for heat dissipation, and follow electrical codes. Use copper windings' low impedance to reduce losses and verify insulation and grounding per manufacturer instructions.
Yes. It is designed for 3-phase 460 V delta input and 230Y/133 V secondary, rated at 0.50 KVA with copper windings and a 115°C rise. Confirm enclosure rating and ventilation for your environment, and ensure junction boxes and wiring sizes meet your panel standards.
Verify the certifications required by your facility, including CE marking for safety, UL recognitions for electrical components, and any applicable IP rating for enclosure protection in dusty or damp environments. The Eaton MD51E91FCU specifies 'Contact Manufacturer' for certifications, so check with the supplier for the exact documentation and compliance package before procurement.
Investing in a ventilated isolation transformer reduces drive faults and downtime by delivering clean, stable power to VFDs, which enhances uptime and overall equipment effectiveness. Regular maintenance should include visual inspection of ventilation, thermal checks for abnormal rise, and ensuring connections remain tight. The copper windings and robust construction support long service life with predictable performance.