M80U / M60U

Delta’s M80U is the industry’s only 80kW inverter with an optimal cost and performance profile and the highest power density available in a string inverter. Along with the M60U, Delta’s largest string inverters provide unbeaten performance and the industry’s lowest Levelized Cost of Energy (LCOE), making them optimal building blocks for Commercial, Industrial and Utility-Scale installations.

With best-in-class efficiency, a rugged enclosure, and proven reliability, the M80U and M60U provide higher returns for your project. Designed, engineered and manufactured by Delta, you can depend on Delta’s best-in-class engineering and quality manufacturing.

The grid-tied, three-phase, transformerless inverters are designed for ease of installation fast commissioning, efficient servicing, and higher uptime.
Optimal architecture
  • Leading power density with 80kW in 180lbs, 33% more power with only 10% more weight
  • M80U connects up to 18 strings per inverter, M60U connects 12 strings
Highest returns
  • 98.8% peak efficiency, 98.5% CEC efficiency
  • Dual MPPT and 200-1000Vdc wide input range
  • Rugged NEMA 4X construction
Innovative technology
  • Flexible
    • Smaller footprint than central or lower-power string inverters
    • Variety of mounting options: wall mounted, under array or on racking, inside or outdoors
    • Three wiring box configurations: MC4, Fuse and Terminal
    • Ergonomic handles and eye bolts for lifting
  • Smart
    • Integrated smart grid functionality
    • Built-in AC Disconnect on MC4 and Fuse configurations
    • Built-in DC disconnect,
    • Separate DC disconnects for each MPP on MC4 and Fuse configurations
  • Easy
    • Integrated MODBUS and optional Ethernet
    • Compatible with Delta or third-party monitoring and control
    • Built-in Type 2 AC and DC surge protection devices
    • Built-in arc fault detector
    • Replaceable surge protection devices, fan trays, and inverter components
  • Commercial: Part of a full range of rugged NEMA 4X inverters from 28kW to 80kW, the Delta grid-tied three-phase RPI series inverters can maximize the solar potential of your commercial site
  • Industrial: Flexible mounting options work for rooftop, wall mount, or ground-mount applications with industry’s highest power density
  • Utility-Scale: The industry’s largest string inverter building block provides the advantages of string topology at a Utility-Scale
  • All regions: Built in rapid shutdown and smart grid technology is designed to meet new grid rules and requirements
  • Connected systems: State-of-the art communications enable systems to be monitored and managed with Delta or third-party systems
Title Type Size Download
M60U Datasheet PDF 1333.04 KB Download
M80U Datasheet PDF 1333.72 KB Download
Manual PDF 23675.61 KB Download