Delong 120kWh energy storage cabinet is equipped with a battery, inverter, high-voltage box, air conditioner, and fire protection system. The complete all-in-one design provides you with ultimate safety and convenience. Price: Click The Button Below To Get A. . The 120 kW automatic switching cabinet integrates STS-based control, protection, and monitoring functions to enable safe and automatic grid-connected and off-grid operation. PVMARS Solar Energy storage technology factory, always with your needs as the core 100% EL TESTING, 100% IV TESTING, 100% DIGITAL WORKSHOP In. . Powerful Integrated Solution: Combines 215kWh of high-voltage battery capacity with a matched 120kW PCS for high-performance C&I storage. High-Efficiency Conversion: System efficiency exceeds 90% @AC side, providing stable 400VAC output for industrial grids. Charging/Discharging Current Max.