Three-phase electric motor: 3LC-355LX1B-2, 400 kW
| Basic technical data | |
| Motor type | 3LC-355LX1B-2 |
| Rated power (kW) | 400 |
| Frame size (mm) | 355 |
| Number of poles | 2 |
| Rated speed (rpm) | 2985 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | △/Y |
| Rated current 400 V (A) | 655 |
| Rated current 690 V (A) | 380 |
| Efficiency at 100% load (%) | 95,8 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,92 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 1,4 |
| Breakdown torque ratio (BDT/RLT) | 2 |
| Locked-rotor current ratio (LRA/RLA) | 7 |
| 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) | 2000 |
| Bearings and lubrication | |
| DE/NDE bearings | 6319-C3/6319-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
In heavy manufacturing, conveyor lines and main technological-unit drives, the correct 3000 rpm electric motor affects stability and costs every day. The 3LC-355LX1B-2 delivers 400 kW and helps preserve both savings and solution value where downtime and unnecessary overload are unacceptable.
IE3 efficiency class is particularly beneficial in continuous operation where energy consumption affects the budget during every shift. Industrial automation requires a drive capable of fast acceleration, stable speed and long service intervals without unnecessary intervention.
3000 rpm electric motor for demanding production lines
A rated speed of 2985 rpm enables smooth operation in applications where precise response to load and consistent output throughout the shift are important. A 400 V electric motor connected at △ 400V has a rated current of 655 A, while at Y 690V it operates at 380 A, simplifying power-distribution design and sizing of starting components.
A robust cast-iron frame increases resistance to vibration, dust and thermal stress. Reinforced cast-iron bearing shields and reinforced cast-iron feet help maintain accurate alignment in conditions where even small movement can affect drive service life.
- Main drive for an aggregate crusher in a stone-processing line.
- Extruder drive in a plastic-profile production line.
- Main fan drive unit in a cement plant.
- Cooling-circuit pump motor in a steelworks.
- Mixer drive in a high-capacity chemical plant.
- Main belt-conveyor drive in a logistics and packaging centre.
Proven foundation for OEM projects and modernisation
For OEM manufacturers of large technological units, it is important that the electric motor can be integrated into the design without unnecessary compromises at the drive interface. DE bearing 6319-C3 and NDE bearing 6319-C3 support long-term stability under radial and axial loading, which is useful in robust applications with variable loads.
A noise level of 95 dB(A) corresponds to the power class of large industrial assemblies, while a packaging weight of 2000 kg reflects a construction prepared for serious operation. The proven manufacturer and distributor VYBO Electric also provides confidence in origin and continuity when planning spare parts and larger deliveries.
400/690 V for integration into existing power systems
A 400/690 V supply simplifies use in operations where the motor must be matched to existing electrical infrastructure. A starting torque ratio of 1.4, breakdown torque ratio of 2 and starting current ratio of 7 help designers estimate starting behaviour and select suitable protection and starting methods.
For long-term operation, a power factor of 0.92 is also important because it supports sensible use of electrical energy within the system. This value is particularly practical where network loading and disciplined operation of the complete line are monitored.
A solution for operations that need performance without downtime
The 3LC-355LX1B-2 fits projects where reliable starting, stable work under load and long-term availability are expected from the drive. For operators of large factories, it is important that the motor maintains the line’s rhythm without demanding disproportionate maintenance attention.
Combined with an efficiency of 95.8%, this 3000 rpm electric motor is a solution that supports reliable production, efficient operation and better control of technology in demanding industrial environments.
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