Electric motor 110 kW, 1490 rpm, 400 V / 690 V, 4LC-315S-4 LV

Model 4LC-315S-4 with an output of 110 kW is designed for operations that require stable torque, low energy losses and reliable operation in the speed range of 1400-1500 rpm. In practice, this is a three-phase motor for low-voltage applications, where super premium efficiency helps reduce power demand from the grid while also supporting the long-term economy of the drive. Compared with more common IE4 efficiency classes, it reduces energy losses by approximately 15 % to 20 % compared with IE3, which is a noticeable difference in both costs and thermal load during continuous operation.

IE4 efficiency reduces operating costs in continuous production

When modernising lines, return on investment is often assessed not only through output, but also through energy consumption, thermal behaviour and service intervals. This 4-pole electric motor uses a rated speed of 1490 rpm, a power factor of 0.89 and an efficiency of 96.3 %, so it is suitable where long-term stability and a good energy balance are decisive. The starting torque ratio Tst/Tn 1.8 and the breakdown torque ratio Tmax/Tn 2.2 provide a balanced reserve for typical industrial loads, while the starting current ratio Ist/In 8.5 must be considered when designing protection and starting. From a practical point of view, the noise level of 88 dB(A) is also important, as it allows a more precise assessment of suitability for process halls and aggregated assemblies.

The construction supports reliable operation at a shaft height of 315 mm

The design with a shaft height of 315 mm is aimed at a robust mechanical execution for larger pumps, fans, compressors and conveyors. The packed weight of 891 kg and packed dimensions of 1302*727*1026 mm are important when planning handling, storage and installation at the mounting location. The 2-M63X1.5 cable entries make it easier to route the power cables correctly, and the accessories in the form of 3 PTC thermistors provide an additional layer of thermal protection. The DE bearing 6319-C3 and the NDE bearing 6319-C3 support long service life when the installation and lubrication regime are designed correctly.

Operation in the 1400-1500 rpm range for production and process systems

In this speed range, the motor is well suited to process systems where a steady speed is required without significant fluctuations and with an emphasis on energy efficiency. VYBO Electric develops solutions with an emphasis on premium materials, precision workmanship and technical support, which is particularly appreciated by companies replacing older drives with more modern assemblies. From the point of view of integration into a 400 V or 690 V grid, correct setting of operating conditions, protection and starting method is decisive so that the motor’s potential can be used without unnecessary loading of the distribution system.

Industrial applications of the electric motor in heavy-duty operation

The motor is suitable for a wide range of industrial applications where long-term load, robust operation and simple service logic are expected. Use in a specific project depends on the nature of the load curve, required starting, mechanical coupling and ambient conditions. The following areas represent typical use in practice.

• Main pumping stations for process water and cooling circuits.
• Fan units for HVAC and extraction systems.
• Conveyor systems in processing lines.
• Gear-reduced drives for mixers and agitators.
• Compressor assemblies with more continuous loading.
• Pumping units in power engineering and industrial media.
• Process lines for material handling.
• Machine assemblies in metalworking production.
• Operations in the chemical industry with uninterrupted operation.
• Water supply and water treatment equipment.
• Energy management in production halls.
• Medium-duty drives requiring high efficiency.
• Modernised replacements for older motors in low-voltage infrastructure.

Parameters that help with connection design

When designing the installation, it is practical to work from the rated current delta 400 V 185 A and the rated current star 690 V 107.25 A so that protection, starting equipment and cable routes can be designed correctly. The rotor inertia of 3.7 kg*m² is important when assessing starting dynamics and when sizing the mechanical coupling with the driven machine. These data help technical teams quickly assess whether the motor will fit into the existing assembly without unnecessary compromises in control or reliability.

If you need a drive for long-term operation that combines IE4 efficiency, robust construction and technical support from VYBO Electric, this model is ready for industrial use and is available from stock. Check the suitability of the motor for your application and take advantage of immediate dispatch for a planned replacement or drive upgrade.