1.1 This standard covers the requirements and performance of energy efficient three-phase, 4-pole squirrel cage induction motors having output ratings up to and including 37 kW con-tinuous duty ( S1) operating at rated voltage and frequency of 415 volts, 50 Hz.
1.2 The performance of motors designed for operation on voltage other than 415 V or up to and including 650 V shall be in accordance with Table 1 excepting the full load current. The full load current will vary in inverse proportions to the voltage in comparison to the values specified in Table 1 (for 415 volts ).