... -1KVA, JJW-2KVA, JJW-3KVA, JJW, 5KVA, JJW-10KVA, JJW-15KVA, JJW-20KVA, and JJW-30KVA3P precision purified ... (1P) or 320-430V (3P)Output: 220V±1% (1P) or 220V±1% (3P)Frequency: 50HZ±4%Voltage for over ... or 426±7V (3P)Loading effect: ≤±0.5% Dielectric strength: 1,500V/minEfficiency: ≥90% Wave form distortion: ≤5% Response time ... °CInsulation resistance: ≥2MΩ purified voltage regulators ,avr,JSW-10KVA