Electric motor 315 kW, 2982 rpm, 400 V / 690 V, 4LC-355L2-2 LV

When selecting a drive for large-scale equipment, we recommend focusing on a motor that maintains stable output even under long-term load while helping to reduce operating losses. The 4LC-355L2-2 model with an output of 315 kW and an operating speed range of 2900-3000 rpm is designed precisely for this type of deployment, where energy savings are directly reflected in lower costs across the entire production cycle.

In practice, this is a low-voltage asynchronous electric motor that combines high efficiency of 96.5% with a power factor of 0.91. Such parameters are particularly important where long-term consumption balance, reactive power draw and operating stability during continuous duty are monitored. This makes the motor suitable for solutions where the drive is expected to deliver reliable performance without unnecessary energy losses.

The design with a frame size of 355 mm and an all-cast-iron construction is adapted for demanding installation and operating conditions. The robust housing handles vibrations better, increases the mechanical durability of the assembly and helps protect the motor even in environments with increased corrosive exposure. This is important when integrating it into lines where the drive must withstand dust, moisture and irregular load peaks over the long term.

Stable power for high-pressure and high-speed units

The rated speed of 2982 rpm places this drive in a class sought mainly by customers for high-speed applications. The combination of starting torque Tst/Tn 1.6, breakdown torque Tmax/Tn 2.2 and starting current Ist/In 8.5 creates a strong basis for technologies where dynamic run-up without excessive mechanical stress is crucial.

• The rated current at delta 400 V is 518 A and at star 690 V is 300 A, which makes integration into various system solutions easier.
• The rotor inertia of 4.0 kg*m² supports predictable behaviour during starting and control.
• The noise level of 97 dB(A) should be taken into account when designing acoustic enclosures and layout solutions.
• The DE 6319-C3 and NDE 6319-C3 bearings are suitable for robust industrial operation.
• The 3 PTC thermistors simplify monitoring of the thermal condition of the winding.

Power supply and mechanical interface for industrial assemblies

For distribution design, it is important that the motor operates with a 400 V / 690 V supply and uses 2-M63X1.5 cable glands. This detail simplifies the design of feeds in larger machine units and also supports neat cabling in both switchboard and machine spaces.

The package dimensions of 1607*822*1161 mm and the package weight of 1802 kg reflect the robust character of the equipment, which is common for drives for large pumps, compressors, fans, crushers or conveyor lines. This makes the motor suitable for assemblies where strong mechanical integration and long-term operational reliability are required.

Use in demanding production operations

• For driving large pumps, it ensures stable operation during long operating intervals.
• For compressors, it helps meet the demands for high continuous output.
• For fan systems, it supports efficient air transport in larger volumes.
• For crushers, it helps to handle impact loads.
• For mixing and homogenising equipment, it maintains consistent rotation under load.
• For conveyors for bulk materials, it supports continuous operating logic.
• For extruders, it helps ensure even loading of the drive system.
• For water treatment technology, it is suitable for long working cycles.
• For power plant units, it is used in auxiliary mechanisms with a higher performance reserve.

If you are looking for a drive for a production system with an emphasis on service life, efficiency and service predictability, this model is a professional choice from the VYBO Electric portfolio. Our in-house development and manufacturing expertise is reflected in a range that is ready for long-term industrial deployment. If you need to assess suitability for a specific technology, send us a non-binding enquiry and we will prepare expert advice for your application.