Three-phase electric motor: 3LC-280M-2, 90 kW
| Basic technical data | |
| Motor type | 3LC-280M-2 |
| Rated power (kW) | 90 |
| Frame size (mm) | 280 |
| Number of poles | 2 |
| Rated speed (rpm) | 2980 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | △/Y |
| Rated current 400 V (A) | 152 |
| Rated current 690 V (A) | 88,12 |
| Efficiency at 100% load (%) | 95 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 1,8 |
| Breakdown torque ratio (BDT/RLT) | 2,3 |
| Locked-rotor current ratio (LRA/RLA) | 7,1 |
| Rotor moment of inertia (kg·m²) | 1,1487 |
| 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) | 1152*652*846 |
| Package weight (kg) | 562 |
| Bearings and lubrication | |
| DE/NDE bearings | 6314-C3/6314-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
2-pole electric motor for heavily loaded main drives
In manufacturing and process operations, smooth running, thermal stability and the ability to withstand long-term load without unnecessary downtime are decisive. This is where the 2-pole 3LC-280M-2 electric motor is suitable, combining efficiency and value for drives expected to deliver continuous performance throughout the shift.
When coupled to pumps, compressors, conveyors or process units, the drive gives service teams scope for predictable maintenance and stable operating conditions. In drive technology, it is important that the motor responds quickly during starting while maintaining its parameters under fluctuating load. IE3 efficiency class supports this by reducing energy losses in normal operation.
IE3 efficiency class for lower consumption in continuous operation
In applications where the motor runs for many hours each day, efficiency directly affects both energy bills and the thermal load of the system. IE3 efficiency class provides Super High Efficiency, which is particularly valuable at stable operating points and during long production cycles.
A rated speed of 2980 rpm supports applications requiring higher speed and smooth power transmission. Rated current is 152 A at △ 400V and 88.12 A at Y 690V, simplifying power-supply design within industrial electrical installations. In this class, a 400 V electric motor is commonly used where compatibility with standard production-hall power systems is required.
Starting characteristics for loaded starts
A starting torque ratio of 1.8 and starting current ratio of 7.1 provide a good basis for applications that do not start unloaded. A breakdown torque ratio of 2.3 improves drive behaviour during short-term load changes and process interventions. In practice, this means a lower risk of unwanted speed drop when starting a conveyor, mixer or compressor stage.
Robust cast-iron frame for harsh industrial conditions
The robust cast-iron frame is designed for locations where vibration, mechanical stress and long-term mounting stability are expected. Reinforced cast-iron bearing shields and reinforced cast-iron feet help maintain structural rigidity even when the motor is installed in a demanding machine frame. This design is suitable for applications where consistent behaviour is required from the electric motor in heavy-duty operation.
DE bearing 6314-C3 and NDE bearing 6314-C3 support a long service life when lubrication and installation are correctly designed. Rotor inertia of 1.149 kg/m² is important when designing acceleration and deceleration, particularly in drives with frequent cycling. A noise level of 91 dB(A) should be considered when integrating the motor into technological units where overall workplace acoustic load is assessed.
Accurate installation and switchboard connection
Packaging dimensions of 1152*652*846 mm and a packaging weight of 562 kg simplify logistics and installation planning. Cable glands 2-M63X1.5 provide space for safe power-cable routing and connection according to project conditions. Combined with a 400/690 V supply, the motor integrates well into industrial lines using standard voltage levels.
7 applications for manufacturing and process operations
The 3LC PRO model is particularly suitable for the following industrial applications:
- Drive for a high-capacity centrifugal pump in a water treatment plant.
- Main drive for a screw compressor in a compressed-air plant room.
- Belt-conveyor drive in a bulk-material handling line.
- Drive unit for a mixer in a chemical process vessel.
- Extraction-fan drive in a paint shop or drying plant.
- Main motor for a granulator in plastics processing.
- Crusher or mill drive in materials production.
In these applications, origin and service support are also important. The fact that this is a solution from the proven manufacturer and distributor VYBO Electric helps ensure continuity in spare parts, technical support and repeat orders for operational stock.
If the objective is to add a drive to production quickly, this 400 V electric motor provides a sensible balance of performance, efficiency and mechanical durability for everyday industrial use. Order the 3LC-280M-2 in good time so installation and commissioning do not have to be postponed because of delivery lead times.