Three-phase electric motor: 3LC-280S-6, 45 kW
| Basic technical data | |
| Motor type | 3LC-280S-6 |
| Rated power (kW) | 45 |
| Frame size (mm) | 280 |
| 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) | 81,6 |
| Rated current 690 V (A) | 47,30 |
| Efficiency at 100% load (%) | 93,7 |
| 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) | 7,3 |
| Rotor moment of inertia (kg·m²) | 1,91187 |
| 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) | 1102*652*846 |
| Package weight (kg) | 489 |
| Bearings and lubrication | |
| DE/NDE bearings | 6317-C3/6317-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
1000 rpm electric motor for economical 3LC PRO operation
The savings and value of the 3LC-280S-6 become apparent wherever the drive operates under load every day and must keep production moving without unnecessary downtime. This 1000 rpm electric motor is designed for light and medium industry, OEM assemblies and smaller technological units where stable operation, sensible consumption and predictable servicing are decisive.
IE3 efficiency class supports lower operating costs during longer shifts and repeated machine starts. In practice, this is appreciated by businesses that want to obtain more from the drive without increasing the energy load of the entire line.
The 3LC PRO operates with a power output of 45 kW and a rated speed of 990 rpm, making it suitable for applications where smooth power transmission is important. Rated current of 81.6 A at △ 400V and 47.3 A at Y 690V gives designers flexibility for correct switchgear and protection sizing. A power factor of 0.85 and efficiency of 93.7% help keep operation within a sensible energy balance.
Robust cast-iron frame for industrial automation and long service intervals
A robust cast-iron frame increases durability under vibration, frequent starting and installation in compact frames. Reinforced cast-iron bearing shields and reinforced cast-iron feet help maintain precise alignment and stability even where the motor is exposed to irregular loads or more demanding drive alignment.
Acoustics are also important in industrial automation. A noise level of 78 dB(A) supports refined assembly operation and reduces pressure on the working environment near the machine. Rotor inertia of 1.912 kg/m² helps with starting design and coordination with a process that must maintain its dynamics.
Bearings and cable connection prepared for everyday loads
DE bearing 6317-C3 and NDE bearing 6317-C3 are suitable for industrial use where long operating periods and consistent shaft guidance are expected. Cable glands 2-M63X1.5 simplify connection in structures where reliable and orderly routing of power conductors is required.
The 3LC PRO motor has a starting torque ratio LRT/RLT of 2, breakdown torque ratio BDT/RLT of 2 and starting current ratio LRA/RLA of 7.3, helping when designing drives for applications with repeated starts and a requirement for reliable acceleration.
IE3 electric motor for lines requiring reliable starting and stable performance
An IE3 electric motor in this class appeals to manufacturers and integrators that want to combine energy efficiency with robust construction. With thousands of industrial installations, this concept has proved itself in assemblies where long-term operating reliability and easier maintenance planning are important.
A packaged weight of 489 kg and package dimensions of 1102*652*846 mm are important for logistics, storage and receiving into production. For serial projects, this means easier integration into internal processes and a lower risk of installation delays.
- Pumping units for process media.
- Ventilation units in production halls.
- Compressor assemblies for service and workshop operations.
- Conveyor drives in packaging lines.
- Agitators for processing bulk materials.
- Briquetting presses in waste processing.
- OEM machines in industrial automation.
Use in OEM assemblies and smaller technological units
In OEM projects, compatibility with the 280 mm frame is particularly valued because it simplifies base design and connection to the existing structure. A three-phase electric motor with the parameters of the 3LC-280S-6 supports solutions that must operate continuously without frequent operator intervention.
If you want a drive that helps keep costs under control while fitting established industrial practice, contact us.
- Rotary feeders in material-processing lines.
- Pressing stations for light metalworking.
- Cleaning and washing lines in food-processing facilities.