3KW Off-grid Hybrid Inverter (4 Power Sources), 9000W Peak, Split-Phase output

The ST3000W-OGSPH is an off-grid low-frequency inverter that is powered by anyone of, or a combination of 3 power sources: the utility grid (or generator), battery, and solar energy, hence termed hybrid inverter. It is a split-phase inverter, a common wiring standard in USA households, see Figure-1. The inverter output has 120Vac (tapped from L1 + N or L2 + N) and 240Vac (L1 + L2), see Fig-1, and a 120Vac universal socket. Low-frequency inverters are more robust, has longer lifespan than high-frequency inverters, and more suitable for inductive loads (e.g., well pumps, motors, aircon). The battery for ST3000W-OGSPH must be 48Vdc. This document supplements the inverter's User Manual.