Crompton Greaves T3D4NDEX

The register lists here 124 versions from 0.75 to 180 kW, 2- to 8-pole, with efficiencies from 73.5 to 95.72% at full load and 73.5 to 95.82% at 75% load, and protection classes mostly between IP55 and IP66. Frame sizes are not recorded in the register as a continuous span but as individual IEC foot-mounted designs from 90 L to 200 L. No GEMS "High Efficiency Level" classification is recorded for any of the 124 models.

Crompton Greaves is one of the established electric motor manufacturers in the Indian market, with an upper power limit of 180 kW that is unusually high for this part of the register; the models gathered here represent the range outside the separately maintained series.

For used Crompton Greaves motors, the usual checkpoints apply: measure the winding's insulation resistance, check the bearings for running noise and play, check the shaft turns freely, assess the condition of the fan and fan cowl, and match frame size, pole count, protection class and efficiency class on the rating plate against the intended application. For inverter operation, check separately whether the winding insulation and bearings are rated for it, since the register provides no data on this.