Three-phase electric motor: 3LC-355LX2A-6, 355 kW
| Basic technical data | |
| Motor type | 3LC-355LX2A-6 |
| Rated power (kW) | 355 |
| Frame size (mm) | 355 |
| 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) | 601 |
| Rated current 690 V (A) | 348 |
| Efficiency at 100% load (%) | 95,8 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 1,3 |
| Breakdown torque ratio (BDT/RLT) | 2 |
| Locked-rotor current ratio (LRA/RLA) | 6,5 |
| Rotor moment of inertia (kg·m²) | – |
| 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) | – |
| Package weight (kg) | 2200 |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
The 1000 rpm electric motor in model 3LC-355LX2A-6 provides an ideal balance between purchase price and energy savings for operations where stable performance, long-term spare-parts availability and straightforward integration into an existing drive are decisive. With an output of 355 kW and a rated speed of 990 rpm, this electric motor is ready for tasks requiring smooth torque transmission without unnecessary operating fluctuations.
The robust cast-iron frame is designed for environments where machines are exposed to vibration, cyclic loading and long operating shifts. Reinforced bearing shields and cast-iron feet increase mounting rigidity, so the motor behaves better during starting, when transmitting heavy loads and during long-term operation in technological systems. For operators of large factories, this means fewer interventions in the mounting and more accurate alignment between the motor and the driven equipment.
1000 rpm electric motor for stable operation of large production systems
In serial production and OEM assemblies, an asynchronous electric motor performs well where the drive needs to work predictably and without sensitivity to normal load changes. Rated current of 601 A at △ 400V and 348 A at Y 690V simplifies both switchboard design and cable-route sizing. The 2-M63X1.5 cable glands simplify connection during installation in industrial assemblies.
Robust cast-iron frame for vibration, dynamic shocks and long shifts
In practice, the cast-iron construction provides better damping of mechanical vibration and maintains mounting geometry during long-term use. This is particularly important in lines where the electric motor is installed in systems with pumps, compressors, conveyors or mixers. A noise level of 95 dB(A) can be taken into account during workplace layout and service-access design.
- High-output pump units for process media.
- Fans for cooling towers with continuous operation.
- Horizontal conveyors with high load inertia.
- Screw conveyors for bulk materials in silos.
- Mill drives in cement-production lines.
- Crushing systems in stone-processing operations.
- Mixing equipment in chemical plants.
- Extruders for polymer processing.
- Rolling units in metallurgical lines.
- Compressor stations for technical air.
- Winding and unwinding stands in the paper industry.
IE3 efficiency class reduces costs in continuous operation
IE3 efficiency class is suitable for operations that monitor energy consumption across the entire technological system. Super high efficiency is particularly noticeable during long operating windows, where every percentage point of losses affects electricity costs and reduces the thermal load on the machine. Efficiency of 95.8% and a power factor of 0.89 help design a drive with sensible reserve capacity for normal production modes.
With 3LC PRO models, the manufacturer’s long-term experience is reflected in how the motor handles starting, steady operation and repeated operating changes. A starting torque ratio of 1.3 and breakdown torque ratio of 2 support use in applications where controlled acceleration of the technology is important. The starting current ratio of 6.5 also makes it easier to assess network loading during start-up.
6322-C3 bearings and a service concept for long maintenance intervals
DE bearing 6322-C3 and NDE bearing 6322-C3 are suitable for robust rotor support in heavy industrial operation. This solution benefits machines that run in continuous shifts and require consistent operation without frequent shutdowns. A package weight of 2200 kg corresponds to a power class commonly integrated into larger technological assemblies.
Electric motor for projects where system integration is decisive
In an OEM project, it is essential that the motor can be accurately incorporated into the machine design, switchboard logic and the plant’s service concept. This electric motor supports solutions where the drive is expected to operate within a standard industrial architecture without unnecessary modifications around it. It is therefore suitable for integrators who need a reliable platform for repeatable use in serial production.
3LC-355LX2A-6 is a solution for large factories seeking performance, rigidity and energy rationality in one drive. Take advantage of the offer and choose a motor that supports long-term operating stability and lower energy costs.