Electric motor 7,5 kW, 730 rpm, 400 V / 690 V, 4LC-160L-8 LV

In operation in the range of 700-750 rpm, the 4LC-160L-8 7.5 kW delivers stable performance, helping to reduce energy losses during long shifts as well as under continuous load. This low-voltage asynchronous electric motor is designed for 400 V and 690 V networks, with the rated current at delta 400 V reaching 16 A and at star 690 V being 9.28 A. This allows it to be matched more precisely to the distribution in pumps, fans, compressors, and larger technological units, where every kilowatt hour and long-term service cost matters.

Reduction in operating costs under continuous load

Efficiency of 89.3 percent and a power factor of 0.74 create a good basis for economical operation, especially where the motor runs for many hours a day. In a category that can, in practice, be seen as an energy-efficient industrial motor, advanced materials, sophisticated windings, and optimised air gaps help to limit losses and stabilise operation. For the operator, this means lower operating requirements and less thermal stress under long-term load.

Noise levels of 68 dB(A) support use even in spaces where smooth drive operation is important, and the rotor inertia of 0.1 kg*m² helps the system respond dynamically. The 4LC-160L-8 model is also a suitable example of how 7.5 kW of power can be used in a more economical mode without unnecessary oversizing of the drive. The VYBO Electric brand builds on its own development and on products made from premium materials, which is noticeable in professional applications both in reliability and in service discipline.

A design that supports reliable operation in tougher conditions

Industrial use requires not only power, but also mechanical reserve. The starting torque ratio Tst/Tn of 1.8 and the breakdown torque ratio Tmax/Tn of 2 show that the motor has a suitable character for starting loads that do not begin completely unloaded. The starting current ratio Ist/In of 7.8 is important when assessing grid load and designing switching in low-voltage infrastructure.

6309-2RZC3 bearings on the DE and NDE sides help maintain rotor mounting accuracy, which is important during long-term operation in industrial assemblies. The 2-M40X1.5 cable glands make practical wiring in switchboards easier, and the accessory in the form of 3 PTC thermistors improve thermal protection monitoring. This solution is suitable for applications where repeated loading, frequent starting, or long duty cycles without interruption are expected.

Use in drives with a rated speed of 730 rpm

The 700-750 rpm speed class is practical for applications that require slower but powerful and predictable operation. A rated speed of 730 rpm provides a suitable basis for direct drives as well as for assemblies with gear adaptation, where stability of flow, pressure, or mechanical output is the priority. For many operations, this is a segment in which an 8-pole electric motor reduces the need for complex control while maintaining a robust operating profile.

• Pumps use stable torque when conveying liquids in process circuits.
• Fans benefit from smooth operation at continuous airflow and pressure regulation.
• Compressors appreciate the firm starting character during repeated starts and grid load.
• Conveyors operate reliably during smooth material transfer in continuous production.
• Mixers use low speeds for consistent processing of viscous media.
• Extruders receive sufficient force for stable operation of the process line.
• Grinding and machining machines benefit from predictable performance under process load.
• Textile machines use even drive performance during sensitive material processing.
• Larger technological units gain a motor suitable for long-term integration into production infrastructure.

Dimensions, weight and mounting readiness for integration

The 160 mm frame size provides a structural basis for industrial installations where compatibility with machine frames and service accessibility are monitored. A package weight of 170 kg and package dimensions of 740*420*550 mm must be taken into account in logistics, storage, and installation into the assembly. The motor therefore fits better into projects where precise planning of transport and handling space is expected.

Operational compatibility with industrial protection and monitoring

Thanks to thermal monitoring via PTC thermistors, the motor is suitable for environments where winding protection against excessive temperature is required. This is particularly practical in operations with fluctuating load, frequent starting, or long running periods in higher thermal classes of ambient conditions. For technicians, it is an advantage that the solution can be more easily connected to standard control and protection elements that are common in industrial practice.

If you need a drive for pumps, fans, compressors, or larger machines with an emphasis on efficient operation, 4LC-160L-8 7.5 kW is a reliable choice for long-term deployment. VYBO Electric, as both manufacturer and distributor, offers a professional range with an emphasis on in-house development and premium materials. If you want to verify suitability for a specific application, send us an enquiry.