Electric motor 90 kW, 740 rpm, 400 V / 690 V, 4LC-315L1-8 LV

Load fluctuation, long operating cycles and the requirement for stable starting are among the most common reasons for replacing the drive in modern production lines. The 4LC-315L1-8 model with an output of 90 kW belongs to the 700-750 rpm speed class, so it is suitable where the drive must deliver balanced performance without unnecessary losses. The design is based on advanced materials and precisely engineered windings, which helps maintain efficient and stable operation even under demanding load.

Economical operation at rated speed of 700-750 rpm

In this power class, the main strength is the motor’s ability to operate reliably in long-term duty, where efficiency and thermal reserve are decisive. As an Electric motor IE4, it reduces losses in both the core and the winding, which is important for equipment with high utilisation. For operations that monitor energy costs and technology availability, this means better control over consumption and lower maintenance requirements.

Construction designed for high load in manufacturing units

The 315 mm frame size provides a robust foundation for heavier industrial applications and supports installation confidence in technological assemblies. The rated current is 166 A with delta connection 400 V and 96.2 A with Y connection 690 V, which makes work easier in networks with different voltage levels. The rated speed of 740 rpm, starting torque ratio Tst/Tn 1.6 and breakdown torque ratio Tmax/Tn 2 create balanced conditions for both starting and steady operation.

Drives for light and heavy industry with an emphasis on reliability

The motor is well suited to assemblies where a combination of performance, durability and a sensible energy balance is required. The starting current ratio Ist/In 7.7 should be taken into account when designing the switchboard, but it also confirms the motor’s suitability for industrial applications with solid electrical infrastructure. The power factor of 0.81 and efficiency of 94.4% support operating economics in drives for both light and heavy industry, especially during long-term operation.

Mechanical and monitoring features for safe integration

The rotor inertia of 7.3 kg*m² helps when assessing starting and braking dynamics, which is important for accurate design of the drive system. Noise level of 82 dB(A) should be considered in operations where acoustic comfort is required and when planning machine placement. The equipment includes 3 PTC thermistors, which support monitoring of the motor’s thermal load during operation.

Connections, bearings and mounting details for industrial deployment

Connection is provided by 2-M63X1.5 cable glands, which allow practical wiring in robust installations. On both the DE and NDE sides, 6319-C3 bearings are used, which supports long service life and stable mechanical operation with correct balancing and maintenance. The packaging weight of 1142 kg and packaging dimensions of 1450*750*1040 mm are important for logistics, storage and planning of handling equipment.

Use in technological lines and heavy-duty operation

• Pumps use stable speed for reliable transport of media in continuous operation.
• Fans benefit from a balanced ratio of performance and efficiency during long-term operation.
• Compressors make use of the robust construction under loads with frequent starts.
• Gear systems gain a suitable torque reserve for technological processes.
• Agitators operate reliably under changing resistance and stable production.
• Belt conveyors use smooth power transmission in production lines.
• Crushers and shredders benefit from durability during short-term load peaks.

If you are modernising a drive in a technological unit, this model represents a solution with an emphasis on efficiency, durability and long-term operating confidence. Combined with the know-how of the VYBO Electric brand and quality components, you get a motor suitable for demanding applications where reliable performance and energy efficiency are decisive. For a specific application, please request a quotation.