Description
EPEVER STI300
Technical Specifications Rated output power 300W; Pure sine wave AC output; DC input voltage range; AC output voltage and frequency; Built-in multiple protection; LED status indicators; Operating temperature -10°C to +50°C; Fan cooling structure.
Functional Features Pure sine wave AC output compatible with inductive loads; Low no-load power consumption; Overload, overvoltage, undervoltage, overheat protection; LED indicators display working state; Automatic shutdown protection under fault condition; Compact wall mount design.
Application Scenarios Small off-grid solar home power system; Camping mobile solar power station; Remote cabin power supply; Small agricultural off-grid power equipment; Emergency backup power supply; Portable solar energy system.
Performance Parameters Output waveform distortion rate maintains low value; Conversion efficiency meets specification; Protection trigger action fast; Output voltage stability under load variation; Fan thermal control operates smoothly.
Material Composition Aluminum alloy heat dissipation shell; IGBT power semiconductor devices; FR4 printed circuit board; Electrolytic and film capacitors; Cooling fan; Plastic front panel; LED indicator lights.
Structural Features Rectangular aluminum housing; Front panel AC output socket and LED indicators; DC input terminal block; Built-in cooling fan on side wall; Mounting holes for wall installation.
Working Principle DC energy from storage battery enters internal power conversion circuit. The inverter uses IGBT bridge circuit to convert DC into high frequency AC, then filters waveform to produce pure sine wave AC output for electrical loads. Internal monitoring circuit continuously detects DC input voltage, output load and internal temperature. When abnormal condition occurs, protection circuit cuts off AC output immediately.
Installation Requirements Install unit in dry and ventilated location; Leave clearance around housing for heat dissipation; Use wire with sufficient cross-section for DC input connection; Connect protective earth terminal; Keep away from flammable materials.
Precautions for Use Do not exceed rated output power; Prevent liquid splash on inverter housing; Do not operate in sealed cabinet without ventilation; Check DC cable tightness periodically; Cut off DC input before maintenance operation.
