Input System: Three-phase three-wire + ground wire Input Voltage: 380V ±15% Input Frequency: 50Hz/60Hz ±5Hz Output Mode: Three-phase standard mode, Three-phase independent mode, Three-phase parallel single-phase mode Three-phase Standard Mode: ?System: Three-phase four-wire + ground wire ?Voltage: Low: 0.1V～150.0V (L-N) // 0.1V-260.0V (L-L) ??????High: 0.1V～300.0V (L-N) // 0.1V-520.0V (L-L) ?Three-phase voltage can be adjusted uniformly, and each phase can be adjusted separately. Three-phase Independent Mode: ?System: 3 independent groups (A+N+PE)/(B+N+PE)/(C+N+PE) ?Voltage: High: 0.1V～300.0V Parallel Single-phase Mode: ?System: A/B/C parallel single-phase L+N+PE ?Voltage: Low: 0.1V～150.0V // High: 0.1V～300.0V Voltage Adjustment Step: 0.1V Output Frequency: Fixed frequency: 50Hz, 60Hz; Adjustable frequency: 45～65Hz Frequency Adjustment Step: 0.1Hz Voltage Stability: ≤±1% Frequency Stability: ≤±0.05% Waveform Distortion: ≤2% (resistive load) Source Voltage Effect: ≤±0.5% Load Effect: ≤±1% Three-phase Phase Angle: 120°±1° Efficiency: ≥85% (full load test) Display: ?Frequency: Resolution 0.1Hz, Accuracy: ±0.02% reading ?Voltage: Resolution 0.1V, Accuracy: ±0.5% reading + (±0.2% range) ?Current: Resolution 0.01/0.1/1A, Accuracy: ±0.5% reading + (±0.5% range) ?Power: Resolution 0.01/0.1/1KW, Accuracy: ±0.5% reading + (±0.5% range) Preset Function: Output voltage, output frequency Protection Function: Overload, overcurrent, overtemperature (85℃±5℃), short circuit, etc. Alarm Function: Alarm signal is issued after protection device activation, displaying fault information for easy troubleshooting Enclosure Protection Level: IP20 Communication Interface: RS-232 (standard), RS-485 (optional), MODBUS RTU protocol Remote Control: Analog control (optional)