... Operation Type: S1 Rated Volt: 115/230V, 220V Rated Frequency: 60Hz, 50Hz Frame Material: Cast iron; Cast aluminum; ... motors, with high efficiency, energy saving, good performance, little vibration, low noise, long life, high reliability, easy maintenance, high ... ° C≤ Θ ≤ 40° C2. Altitude: ≤ 1000m3. Rated voltage: 380V4. Frequency: 50Hz or 60Hz5. Duty/Rating: Continuous(S1)6. Insulation class ...