The Epsolar HP-3522W-AH1250P20A pure sine wave inverter is a hybrid charger-inverter for photovoltaic energy storage systems. It supports charging from the grid, solar panels and generators, and can operate with or without a battery. SPWM technology provides a pure sine wave output, while MPPT technology offers a maximum tracking efficiency of over 99.5%.

It supports two photovoltaic inputs, charging from various types of generators, and parallel operation of up to 12 units in a single-phase or three-phase system. The LCD screen and LED indicators display system status, while the RS485 interface supports optional WiFi, Bluetooth, TCP or 4G modules for remote monitoring. Historical data logging stores up to 25,000 records, with an adjustable interval of 1 to 3600 seconds. The battery is charged in three stages, and the device has a communication port for lithium batteries.

• Rated power: 3500 W
• Power supply: Single-phase
• Output type: Pure sine wave
• Type: Hybrid inverter
• Battery operation: With or without a battery
• Charging sources: Grid, solar panels and generator
• Photovoltaic inputs: 2
• Maximum MPPT tracking efficiency: Over 99.5%
• Parallel operation: Up to 12 units in a single-phase or three-phase system
• Data logging: Up to 25,000 records
• Logging interval: 1 to 3600 seconds
• Communication interface: RS485
• Optional remote monitoring modules: WiFi, Bluetooth, TCP or 4G
• Charging method: Three-stage
• AC output control: One-button control
• Operating temperature range: -20 °C to +50 °C