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Growatt WIT 28-55K-HU/AU-US L2 High-voltage Three Phase split-phase Hybrid inverter

Original price was: $8,650.00.Current price is: $8,300.00.

The Growatt WIT 28-55K-HU/AU-US L2 is a commercial and industrial (C&I) grade, high-voltage, three-phase hybrid inverter engineered primarily for 208V/220V low-voltage three-phase grids common in North American markets. It unifies solar generation, high-voltage battery storage, and microgrid generator management into a single plug-and-play system.

Description

Key Technical Specifications
The lineup consists of four power ratings: 28kW, 35kW, 40kW, and 55kW

Feature  Specification Details
Grid Voltage Compatibility 208V / 220V AC Three-Phase (3P3W+PE / 3P4W+PE)
Battery Compatibility Lithium & Lead-Acid High-Voltage Systems (380V–650V; Recommended @ 512V)
Peak Efficiency Up to 98.2%
DC/AC Ratio Up to 2.0 (Allows heavy over-provisioning of solar arrays)
MPPT Trackers 5 to 10 independent channels (Depends on exact model capacity)
Protection Rating IP66 / NEMA 4X (Dust-tight and water-jet proof for outdoors)
Dimensions & Weight 850 x 1350 x 510 mm


Core Functional Advantages
  • Integrated UPS & Black Start: Houses an internal Uninterruptible Power Supply mechanism capable of seamless transition to off-grid backup with black start functionality from battery banks. 
  • 100% Unbalanced Load Handling: When operating in off-grid backup mode, it distributes power safely across heavily uneven or single-phase loaded phases without shutting down.
  • High Overloading Capacity: Supports 110% continuous AC overloading capacity, allowing it to sustain moderate surges from heavy machinery or motors.
  • Diesel Generator (DG) Control: Features automated dry-contact ports to remotely control and start up localized backup diesel generators when solar and battery fields drain.
  • Scalable Power: Individual configurations can be scaled and stacked up to a total network size of 165kW.
  • Safety Hardware: Pre-equipped with Type II Surge Protection Devices (SPD) on both the DC and AC blocks, Arc Fault Circuit Interrupter (AFCI), and ground fault monitoring.