Main Features: The JJW and JSW series single-phase and three-phase purified power supplies are AC regulated power supplies that integrate voltage stabilization and anti-interference capabilities. They not only feature high stabilization accuracy, high efficiency, fast response, high reliability, low noise, compact size, and light weight, but also effectively suppress voltage spikes and various noise interference in the power grid. They are widely used as ideal power supply equipment for computers, copiers, audio-visual equipment, medical devices, measurement instruments, industrial equipment, office equipment, electronic instruments, and automated control systems. Technical Parameters: JJW, JSW Input Voltage Single-phase voltage 180-255V ±2% Three-phase voltage 310V-450V ±2% (must be specified when ordering) Output Voltage Single-phase voltage 220V (210V-230V continuously adjustable) ±0.5% Three-phase voltage 380V ±1% Frequency 50Hz/60Hz Specifications Single-phase: 1KVA, 2KVA, 3KVA, 5KVA, 7KVA, 10KVA, 15KVA, 20KVA, 30KVA Three-phase: 3KVA, 6KVA, 10KVA, 15KVA, 20KVA, 30KVA, 60KVA, 100KVA Insulation Resistance >5MΩ Full Load Efficiency ≥92% Voltage Stabilization Accuracy ±1% Dielectric Strength 1500V/min Load Effect ≤±0.5% Additional Waveform Distortion ≤5% Response Time 30–60mS Audio Noise ≤50db Load Power Factor >0.8 Spike Absorption Input 1000V/13us spike, output ≤5V Output Overvoltage Alarm Protection Value 240V ±5V 420V ±8V Operating Environment Temperature: 0℃–40℃ Humidity: 20%–85% Operating Mode Continuous operation Functional Protection No contacts, no noise, no mechanical or carbon brush wear; features anti-interference, overvoltage, undervoltage protection, phase loss protection, and overload short-circuit protection.