Three-phase electric motor: 3LC-315M-6, 90 kW
| Basic technical data | |
| Motor type | 3LC-315M-6 |
| Rated power (kW) | 90 |
| Frame size (mm) | 315 |
| Number of poles | 6 |
| Rated speed (rpm) | 990 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | △/Y |
| Rated current 400 V (A) | 161 |
| Rated current 690 V (A) | 93,33 |
| Efficiency at 100% load (%) | 94,9 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,85 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 2 |
| Breakdown torque ratio (BDT/RLT) | 2 |
| Locked-rotor current ratio (LRA/RLA) | 6,7 |
| Rotor moment of inertia (kg·m²) | 5,3297 |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | IM B3, B5, B35, V1 |
| Duty type | S1 (S2, S3, S4 – S9 optional) |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC411 |
| Starting method | DOL, VFD, soft starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Cable glands | 2-M63X1.5 |
| Operating conditions | |
| Ambient temperature range | -20 to +40°C (-30, +50, +60 optionally) |
| Maximum installation altitude | up to 1000m |
| Packaging and dimensions | |
| Packaging dimensions (mm) | 1412*727*1026 |
| Package weight (kg) | 868 |
| Bearings and lubrication | |
| DE/NDE bearings | 6319-C3/6319-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
A robust cast-iron frame gives this drive reserve capacity appreciated by production, maintenance and design teams under long-term loading. As a six-pole electric motor, the 3LC-315M-6 delivers operating savings and value when used in lines where stable operation, service intervals and resistance to vibration are decisive.
Six-pole electric motor for stable operation of production technologies
A rated power output of 90 kW and 990 rpm provide a suitable basis for technologies that need smooth energy transmission without unnecessary starting shocks. This electric motor performs well wherever continuous loading is required and sensible drive sizing across the entire production line is important.
The robust cast-iron frame is not merely a construction detail. Reinforced cast-iron bearing shields and reinforced cast-iron feet help maintain mounting accuracy and limit the transmission of vibration into the machine, which is important during long operating periods and in equipment sensitive to alignment.
Cast-iron frame for long-term durability in continuous operation
For medium-sized businesses and large factories, it is important that the motor handles repeated starts, steady loading and straightforward integration into existing assemblies. This asynchronous electric motor is suitable for operations planned around service windows and where total costs over the equipment’s entire service life are monitored.
- Pumping stations for process water in chemical production.
- Conveyor systems for packaging bulk materials.
- Crushing and sorting lines in aggregate processing.
- Ventilation units for production halls with high airflow volumes.
- Extruders in plastics processing.
- Mills and mixers in batch food production.
IE3 efficiency class for lower consumption under continuous load
IE3 efficiency class supports energy-efficient operation under normal conditions, which at a power level of 90 kW is important for controlling consumption during long production cycles. In projects where return on investment is monitored, this approach is reflected in operating costs without changing the technology’s working rhythm.
The manufacturer’s years of experience are also evident in the details that matter in practice for trouble-free installation and subsequent servicing. Cable glands 2-M63X1.5, DE bearing 6319-C3 and NDE bearing 6319-C3 support a technical solution designed for sensible connection and service continuity.
Installation and operating data for precise drive integration
Rated current at △ 400V is 161 A and rated current at Y 690V is 93.33 A, simplifying protection sizing and switchgear design. A starting torque ratio of 2 and breakdown torque ratio of 2 assist in designing applications where predictable dynamics are important. A starting current ratio of 6.7 must be considered when selecting the starting method and protection.
Efficiency of 94.9% and a power factor of 0.85 complete the profile of a drive prepared for long-term use in demanding industrial operation. A noise level of 83 dB(A), rotor inertia of 5.330 kg/m², packaged weight of 868 kg and package dimensions of 1412*727*1026 mm are practical figures for logistics, installation and handling planning.
90 kW power for lines where every production cycle counts
In practice, this is a solution for projects where the electric motor must operate stably, predictably from a service perspective and with reserve for a longer production horizon. The 3LC-315M-6 therefore fits environments where continuity, durability and sensible operating costs are expected from the drive.
Contact for technical drive design
For a quotation, technical verification or selection of a suitable connection, contact us.




