Three-phase electric motor: 3LC-355LX1-6, 315 kW
| Basic technical data | |
| Motor type | 3LC-355LX1-6 |
| Rated power (kW) | 315 |
| 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) | 533 |
| Rated current 690 V (A) | 309 |
| 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) | 1,8 |
| Breakdown torque ratio (BDT/RLT) | 2 |
| Locked-rotor current ratio (LRA/RLA) | 6,8 |
| 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) | 2100 |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
In heavy-industry lines, conveyor nodes and technological systems under continuous load, drive stability depends on selecting the right 1000 rpm electric motor. Model 3LC-355LX1-6 delivers 315 kW, giving the operation reserve capacity for starts, loads and long production cycles while also creating scope for savings through more efficient use of energy in real operating conditions.
IE3 efficiency class supports lower consumption under normal load and, in practice, helps reduce losses over long operating periods. For operators of large factories and OEM manufacturers, this type of electric motor means less unwanted heat in the machine and better alignment with the plant’s energy targets.
1000 rpm electric motor for continuous loading of production systems
The rated speed of 990 rpm is suitable where the drive must maintain a smooth flow of material without unnecessary fluctuations. A 400 V electric motor in this power class is used where the project works with a 400/690 V industrial supply and requires reliable integration into the existing electrical distribution infrastructure.
In practice, this 1000 rpm electric motor is used particularly in operations where stable running throughout the entire shift is expected. Proven manufacturer and distributor VYBO Electric provides a solution that fits both industrial-automation requirements and the modernisation of older drives.
Robust cast-iron frame for heavy operating conditions
The robust cast-iron frame helps maintain assembly rigidity under vibration, dynamic loading and long-term use in technological systems. Reinforced cast-iron bearing shields and reinforced cast-iron feet improve the mechanical durability of the mounting and support more accurate positioning of the motor in the assembly.
This solution is especially valuable in applications where the electric motor must cope with continuous service, temperature changes and loading from the driven machine. For OEM manufacturers, it is also important that the robust construction simplifies integration into equipment with higher frame-strength requirements.
400/690 V connection and operating currents for switchboard design
A 400/690 V supply allows the motor feeder to be designed according to the specific connection and operating mode. With a rated current of 533 A in △ 400 V connection and 309 A in Y 690 V connection, protection, switching devices and cable routes in the switchboard can be sized more accurately.
When designing the drive, it is also practical to take into account the starting current ratio of 6.8 and starting torque ratio of 1.8, because these values influence the behaviour of the entire technological line. A BDT/RLT ratio of 2 helps when assessing reserve capacity during load changes at start-up and short-term shock conditions.
Precise bearing arrangement for long service intervals
DE bearing 6322-C3 and NDE bearing 6322-C3 provide a basis for stable operation under higher loads and during long working cycles. The 2-M63X1.5 cable glands simplify industrial installation and give the installer sufficient room for safe routing of power cables.
This solution is useful where minimum downtime is expected and service work must be planned around production windows. For maintenance teams, it is important that the motor fits standard service procedures in large factories as well as in standalone technological units.
Applications for large factories and OEM technology
Model 3LC-355LX1-6 is intended for the following specific applications:
- Main drive of a belt conveyor in quarry operations.
- Drive motor for a mixing line handling bulk industrial mixtures.
- Drive for a process-water pumping station.
- Motor for a rotary drum dryer in a processing plant.
- Main crusher drive in recycling technology.
- Drive for a dust-extraction fan in a filtration station.
- Motor for an extruder in a polymer-processing line.
- Drive for a rolling section in a metallurgical operation.
- Motor for a compressor unit in a production facility.
In each of these applications, reliable performance, adequate operating reserve and suitable integration with industrial automation are important. If you need a motor for a specific project or line modernisation, contact us.
IE3 efficiency for lower long-term operating costs
IE3 efficiency class helps keep energy consumption under control even during long production campaigns. Combined with a rated speed of 990 rpm and an output of 315 kW, it is a solution suitable for operations that monitor energy costs, servicing and the overall availability of technology.
For purchasing departments and maintenance technicians, it is important that model 3LC-355LX1-6 provides a reliable basis for long-term use in demanding drives. If you want to integrate this 1000 rpm electric motor into your assembly, contact us.