Electric motor 15 kW, 735 rpm, 400 V / 690 V, 4LC-200L-8 LV

In the drives of pumps, fans, compressors and other machines, it is often decisive whether the motor can handle long-term operation without unnecessary losses and without excessive heating. The 4LC-200L-8 model with an output of 15 kW is designed for the 700-750 rpm speed class, where, with correct sizing, noticeably lower energy demand can be achieved than with the common IE3 class. In this group of drives, operational reliability is also important, so the three-phase motor with parameters for 400 V and 690 V fits well into low-voltage infrastructure in production units.

Energy-saving operation in the 700-750 rpm range

Thanks to an efficiency of 91.2% and a power factor of 0.75, the motor supports super-premium efficiency in operations where energy costs and load stability are monitored. The design with an IEC 200 mm frame size is based on a solution that uses advanced materials, more precise windings and optimised air gaps. In practice, this means lower losses during continuous running, a steadier thermal regime and a better reserve for longer operating cycles. At a rated speed of 735 rpm, the motor is suitable for applications where a balanced combination of torque and economy is required.

Mechanical and electrical properties for a long service life

For starts and loads in normal industrial practice, mechanical parameters are also important. A starting torque ratio of 1.8 and a breakdown torque ratio of 2 show that the motor is ready for smooth acceleration with a reasonable reserve when the operating point changes. A starting current ratio of 8 requires properly designed protection and switching, especially in applications with frequent starting. The rotor inertia of 0.4 kg*m² helps when assessing the drive dynamics, while the noise level of 73 dB(A) remains at a level that operators can manage well with suitable installation.

Accessories and installation for reliable mounting

For cable connection, 2-M50X1.5 cable glands are prepared, which makes routing power and auxiliary circuits easier. The DE 6312-C3 and NDE 6312-C3 bearings support a stable bearing arrangement under long-term load. The equipment also includes 3 PTC thermistors, which help protect the motor under thermal stress and are especially useful where operational safety is monitored without unnecessary downtime.

Use in production and technical operations

The 4LC-200L-8 model will prove itself where the drive operates under a stable or slightly changing load and where precise sizing for a 400/690 V network is important. Thanks to its 15 kW power class, it is suitable for pumps in process circuits, fans in treatment and HVAC systems, compressors with continuous operation, mixers, conveyors, crushers, drum mechanisms, winding units and other large machines. In such tasks, the combination of efficiency, available starting torque and a reasonable mechanical reserve helps.

• Pumps benefit from stable operation when conveying liquids in process and cooling circuits.
• Fans benefit from the balanced relationship between power and speed in ventilation and extraction assemblies.
• Compressors appreciate robust performance during longer duty cycles and strict grid requirements.
• Centrifugal pumps benefit from smooth starting and good operational stability.
• Circulation pumps benefit from economical operation during continuous service.
• HVAC units use low losses during long-term operation.
• An extraction fan helps maintain a stable flow even with higher system resistance.
• Process mixers appreciate the balanced mechanical load on the shaft.
• Conveyors benefit from reliable torque during steady material transport.
• Large machines in operations with low-voltage infrastructure benefit from precise matching of supply and load.

If you need a motor for operation where efficiency, reliability and service security matter, this electric motor from VYBO Electric is ready for stock dispatch. For a technologically demanding application, check the suitability of the motor for your application and use technical advice when selecting the correct connection and operating mode.