
Pure sine wave inverters convert battery DC voltage (12V, 24V, 48V, or higher) into clean AC power (120V/240V 60Hz or 230V 50Hz) that is identical or superior to utility grid power. Unlike modified sine wave (MSW) inverters, pure sine wave output operates all AC loads safely – including sensitive electronics, variable speed motors, medical devices, and induction cooktops.
How Inverter-Charger Works in Typical Marine or RV Installation:
When shore power (or generator) is connected and within acceptable limits: Transfer switch connects shore power directly to AC loads (pass-through). Internal battery charger simultaneously charges batteries from shore power.
When shore power is disconnected or fails: Transfer switch (typically within 10–30 milliseconds) connects inverter output to AC loads. Batteries supply DC to inverter, which produces AC.
When shore power returns (stable for programmed delay, e.g., 10 seconds): Transfer switch switches back to shore power and resumes charging.
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