Electric motor 75 kW, 990 rpm, 400 V / 690 V, 4LC-315S-6 LV

When selecting a drive for stable operation, it is worth choosing a solution that can handle long-term load, fits precisely into low-voltage infrastructure and offers a reserve for real operating conditions. The 4LC-315S-6 model with an output of 75 kW operates in the 900-1000 rpm range and is designed for operations where the motor is expected to deliver reliable starting, stable torque and predictable behaviour when the load changes. In practice, this is a suitable choice where advanced materials, precise winding manufacture and long-term availability of power without unnecessary downtime are required.

Operational reliability for pumps, fans and compressors

This IE4 electric motor is intended for drives for both light and heavy industry, where continuity of operation and efficient use of energy are decisive. The rated speed of 990 rpm naturally suits applications where smoother running and a suitable operating characteristic over long duty cycles are important. An efficiency of 95.4% helps to reduce energy losses, a power factor of 0.84 supports rational sizing of the electrical network and a noise level of 83 dB(A) corresponds to robust industrial use.

In the field of pumping and air handling solutions, the motor provides a balanced basis for stable flow, pressure and work with variable load. For operations with large machines, the starting characteristic is also important, because the ratio of starting torque Tst/Tn 1.6, the ratio of breakdown torque Tmax/Tn 2 and the ratio of starting current Ist/In 8 show that the motor is ready for a sensible run-up without excessive loading of the network. In combination with 6319-C3 bearings on both the DE and NDE sides, longer service life is supported in demanding operating modes.

Speed range of 900-1000 rpm for stable industrial operation

The speed range of 900-1000 rpm is practical for equipment that needs consistent output without unnecessarily high speeds. This characteristic is especially useful in low-speed industrial applications, where smooth operation and process control are the priority. The rotor inertia of 4.7 kg*m² helps to smooth dynamic changes, and the rated current of 132 A in delta 400 V connection, or 76.5 A in star 690 V connection, allows the power supply to be designed correctly for the specific system.

Construction designed for long-term use

The all-cast-iron design with an IEC 315 mm frame is intended to absorb vibration and provide increased resistance in aggressive environments. The 2-M63X1.5 cable entries make technically neat connection in switchboards and machines easier, while the package weight of 763 kg and package dimensions of 1302*727*1026 mm should be taken into account for logistics and installation. The PTC winding protection accessory adds an important element of temperature monitoring, helping to protect the motor under long-term load and in degraded cooling conditions.

The VYBO Electric manufacturer draws on many years of development and experience in the design of motors for industry, which in practice is evident in the emphasis on reliable operation and technical consistency. If you are looking for a motor for pumps, fans, compressors or other heavier drives, this model offers a balanced combination of efficiency, mechanical durability and easy integration into existing infrastructure. For specific operating conditions, you can request a quotation and verify the suitability of the solution for your application.