IE4 (Super Premium Efficiency)
| Efficiency Classes | IE4 (Super Premium Efficiency) |
| Frame Size | 100 to 355 |
| Power Range | 2.2kW to 275kW |
| Number of Poles | 2, 4, 6 |
| Motor Material | Frame : Cast Iron (with mounting feet integral to the housing - for constructions with feet) |
| Terminal Box : Generously dimensioned, Rotatable through 360° in steps of 90; on top as a standard | |
| Fan Cowl : Sheet Steel; Fan: Thermoplastic (Cast Iron for 2P in Frames 250 and above) | |
| Marking | Ratings covered under IS : 12615-2011 will be marked with the appropriate efficiency class |
| Degree of protection | IP55 as per IS:4691 |
| Voltages | 415V Standard. For other voltages possible please contact nearest sales office. |
| Frequency | 50Hz (New IS:12615 does not cover any other frequency. Motors can offered for 60Hz but without IE marking). |
| Type of Construction (For other possible constructions contact nearest sales office) |
Frames up to 132 : IMB3, IMB5, IMV1, IMB35, IMB14, IMB34 |
| Frames 160 - 315M : IMB3, IMB5, IMV1, IMB35 | |
| Frames 315L 355L : IMB3, IMV1, IMB35 | |
| Cooling Type | 1C411 as per IS:6362. (Totally Enclosed Fan Cooled) |
| Ambient Conditions (Standard) | 50°C, Altitude 1000m |
| Temperature Class | Class F, most of them utilised to Class B |
| Bearing System | 63 Series for frames 160 and above. Identical bearings at DE and NDE help reduce inventory |
| Lubrication System | Regreasable bearings is start from frames 100 onwards |