Three-phase electric motor: 3LC-280M-4, 90 kW
| Basic technical data | |
| Motor type | 3LC-280M-4 |
| Rated power (kW) | 90 |
| Frame size (mm) | 280 |
| Number of poles | 4 |
| Rated speed (rpm) | 1485 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | △/Y |
| Rated current 400 V (A) | 155 |
| Rated current 690 V (A) | 89,86 |
| Efficiency at 100% load (%) | 95,2 |
| Efficiency class | IE3 |
| Power factor at 100% load | 0,88 |
| Starting and torque characteristics | |
| Locked-rotor torque ratio (LRT/RLT) | 2 |
| Breakdown torque ratio (BDT/RLT) | 2,3 |
| Locked-rotor current ratio (LRA/RLA) | 6,9 |
| Rotor moment of inertia (kg·m²) | 2,5634 |
| 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) | 650 |
| Bearings and lubrication | |
| DE/NDE bearings | 6317-C3/6317-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 3 x PTC thermistor | |
In conveyors, pumping stations and mixing lines, every 4-pole electric motor is assessed by how well it handles everyday loads without unnecessary downtime. The 3LC-280M-4 model delivers efficiency and value to operations where consumption, starting stability and long-term service requirements are monitored.
Industrial practice shows that IE3 efficiency class is particularly relevant in continuous operations where differences in losses are reflected in energy bills as well as the thermal load on the drive. Super high efficiency helps keep the motor operating in a regime suitable for longer deployment under changing line conditions.
4-pole electric motor for stable operation of production lines
A rated speed of 1485 rpm provides characteristics suitable for drives requiring smooth torque transmission. In practice, this is appreciated on lines where uniform operation, sensitive connection to a gearbox and predictable behaviour during repeated starts are important.
A rated power output of 90 kW provides capacity for main drives in production and process operations working under higher loads throughout the shift. Combined with a 400/690 V supply, it is a solution that integrates well into standard drive technology in plants where reliable connection to existing switchgear and control systems is expected.
Robust cast-iron frame for demanding operation
A robust cast-iron frame is suitable wherever rigid mounting and resistance to vibration from the technological unit are required. Reinforced cast-iron bearing shields and reinforced cast-iron feet support structural rigidity both when mounted on a base frame and during extended operation under higher mechanical loads.
This solution is beneficial in areas where the motor is exposed to dust, higher humidity or regular load changes. An electric motor with this construction fits better into assemblies that must operate without frequent maintenance intervention and with an emphasis on repeatable reliability.
400 V electric motor for industrial assemblies with higher current demand
A rated current of 155 A at △ 400V and 89.86 A at Y 690V enables the connection to be designed according to the specific starting method and available supply network. For a 400 V electric motor, operating peaks should also be considered, particularly in drives that start loads under pressure or require longer acceleration.
Starting and breakdown torque parameters support use in technologies where smooth acceleration without excessive drive stress is important. A starting current ratio of 6.9 also helps when designing protection and selecting the starting strategy in the switchgear.
Proven manufacturer and distributor VYBO Electric supplies this series to businesses that require consistency between drive design and actual operating conditions. In practice, this means easier sizing, clearer maintenance planning and better control over replacement parts.
Specific use in 9 industrial applications
The model is particularly suitable for the following operations:
- Main drive of a belt conveyor in an aggregate-processing line.
- Centrifugal-pump drive in a process-water treatment plant.
- Drive motor for a bulk-mixture mixer in construction-material production.
- Fan drive in the extraction system of a powder-processing operation.
- Compressor-unit drive in an industrial compressed-air distribution system.
- Main drive of a tube mill in raw-material processing.
- Agitator drive in a chemical reaction vessel.
- Motor for a roller conveyor in a packaging and sorting line.
- Pump drive in a cooling circuit in a metallurgical operation.
Use in drive technology with an emphasis on maintenance and performance
DE bearing 6317-C3 and NDE bearing 6317-C3 support stable operation in assemblies where running precision and long service intervals are important. Rotor inertia of 2.563 kg/m² helps when evaluating acceleration and braking in technological units with repeated cycles.
A noise level of 80 dB(A) should be considered when designing the machine room and positioning equipment in the hall. Cable glands 2-M63X1.5 simplify connection where orderly power routing and reliable sealing of cable entries are required.
Package dimensions of 1152*652*846 mm and a packaged weight of 650 kg are practical for handling in a production warehouse and for installation planning. For drive applications where long-term operational reliability and suitable network connection are priorities, the 4-pole electric motor from the 3LC PRO range provides a solution that can be integrated into standard industrial use without unnecessary compromises.
If you have a project ready or need to add a drive to an existing line, order the 3LC-280M-4 in good time. Stock availability and fast delivery help shorten downtime and accelerate equipment commissioning.
