Electric motor 37 kW, 1485 rpm, 400 V / 690 V, 4LC-225S-4 LV

When selecting a drive for pumps, fans, compressors and also large machines, it is worth choosing a motor that reduces operating losses and maintains stable performance over long working cycles. The 4LC-225S-4 model with an output of 37 kW in the speed range 1400-1500 rpm is designed precisely for this type of use, where energy consumption, reliability and service costs are decisive. In practice, this is a low-voltage asynchronous electric motor that can deliver significant cost savings, especially where it runs without interruption or with frequent starts. The VYBO Electric range is based on its own research and development and also supports universal industrial applications in operations with demands for robustness and efficiency.

Efficient operation at rated load

The motor achieves an efficiency of 95.2% and a power factor of 0.85, which is important in operations where power is transferred over long periods and every percentage point of efficiency has an impact on electricity bills. The rated speed of 1485 rpm fits steadily into operation in the range 1400-1500 rpm, so the motor works well with common industrial assemblies without the need for non-standard sizing. At a supply voltage of 400 V, the rated current is 65.2 A and at 690 V it is 37.8 A, which makes it easier to design the switchboard and protective elements in networks with the corresponding low-voltage infrastructure.

• Rated current delta 400 V 65.2 A supports direct connection in common industrial assemblies.
• Rated current star 690 V 37.8 A helps in connections with higher voltage and lower current.
• Starting torque ratio Tst/Tn 2 improves starting in applications with starting load.
• Breakdown torque ratio Tmax/Tn 2.3 provides sufficient reserve in transient states.
• Starting current ratio Ist/In 9 must be taken into account when sizing the supply and protection.

Construction prepared for long service in demanding environments

The all-cast-iron design with a centre height of 225 mm provides a solid support for machines that transmit vibration into the foundations or operate in environments with higher dust levels and humidity. The robust cast iron construction increases mechanical resistance and at the same time helps maintain mounting accuracy under long-term load. For operations that require quieter running, the noise level of 78 dB(A) is also important, because the motor can be integrated into technological units without unnecessary acoustic discomfort.

Dimensions and mounting make integration into existing lines easier

When designing a replacement or a new drive, the practical mounting data also help. The package weight of 329 kg and package dimensions of 942*542*596 mm simplify transport, handling and storage planning. The cable entries 2-M50X1.5 provide space for suitable industrial connection and the DE 6313-C3 and NDE 6313-C3 bearings are selected with stable operation in mind. The rotor inertia of 0.5 kg*m² supports smooth dynamic acceleration under typical process loads.

• 3 PTC thermistors allow better monitoring of winding temperature during motor protection.
• 6313-C3 bearings on the DE and NDE sides support reliable operation in continuous duty.
• 2-M50X1.5 cable entries make clean and service-accessible wiring easier.
• Rotor inertia of 0.5 kg*m² is suitable for applications requiring smooth starting.

Use in technologies with regular load

• Pumps in pressure and pumping stations.
• Fans in air handling and extraction systems.
• Compressors in workshops and production lines.
• Large mixers in process operations.
• Conveyor belts with smooth running.
• Reduction drives in production units.
• Circulation pumps in power engineering and heating technology.
• Cooling units in industrial halls.
• Pressing equipment with repeated starts.
• Crushing and sorting lines.
• Separators and separation technologies.
• Auxiliary drives in production operations with low-voltage supply.

If you need a motor for long-term operation with an emphasis on efficiency, robustness and easy integration, the 4LC-225S-4 is ready for industrial deployment. For a technical comparison with your application and the correct wiring design, send us a non-binding enquiry, and we will be happy to recommend a suitable configuration for your conditions.