Electric motor 22 kW, 735 rpm, 400 V / 690 V, 4LC-225M-8 LV

Model 4LC-225M-8 with an output of 22 kW delivers stable torque for operation in the range 700-750 rpm and is ideal where reliable starting, smooth running and long service life matter. The frame size 225 mm design is intended for demanding drives that require precise fitting into pumps, fans, compressors and large machines. In this class, advanced materials, sophisticated windings and optimised air gaps are used to support efficient energy transfer and lower losses. The motor therefore fits naturally into the segment where an electric motor IE4 with reliable operation and a high technical reserve is expected.

Economical operation with low losses and stable load

An efficiency of 92.1 % and a power factor of 0.76 help reduce operating losses in applications with long daily running hours. The rated current delta 400 V is 43.8 A and the rated current star 690 V is 25.4 A, which makes switchboard design and the choice of starting method easier according to the voltage system. Combined with a rated speed of 735 rpm, this is a solution that holds the operating point well in pumps with constant flow, fans with continuous load and compressors where smooth running without unnecessary fluctuations is important.

• Pumps benefit from stable operation during continuous fluid transfer and maintain predictable behaviour under higher back pressure.
• Fans benefit from a speed class that supports even airflow and good power control.
• Compressors gain a solid base for longer duty cycles in low-voltage infrastructure.
• Large agitators and homogenising equipment appreciate robust starting during repeated starts.
• Conveyors operate reliably under continuous load and variable operating demands.
• Metering lines use precise, smooth power transfer without unnecessary overloading of the drive.
• Crushers and grinding equipment have a robust foundation for short load peaks.
• Pressing technologies appreciate consistent speed during repeated cycles.
• Extruders require stable energy supply and the motor supports them with even pull.
• Aggregate units and process blocks benefit from compact integration into an industrial assembly.
• Air handling systems in halls and production sites benefit from quiet and balanced operation.
• Processing machines in heavy industry gain a motor suitable for long-term load and repeatable operation.

Parameters that simplify design and installation in production units

The motor has a noise level of 73 dB(A), a package weight of 376 kg, rotor inertia of 0.6 kg*m² and package dimensions of 950*550*700 mm, so handling and installation into a process unit can be planned more accurately. The 2-M50X1.5 cable entries make it easier to bring in the power supply in industrial installations where clean and safe cabling is required. The DE bearing 6313-C3 and the NDE bearing 6313-C3 support long-term mechanical stability, and the accessory in the form of 3 PTC thermistors increase winding protection under thermal stress.

A drive base for drives in both light and heavy industry

The design with a starting torque ratio Tst/Tn of 1.8, a breakdown torque ratio Tmax/Tn of 2 and a starting current ratio Ist/In of 8.3 provides an important reserve during starting and short-term load changes. This characteristic is beneficial in drives where smooth start-up is required without excessive stress on the supply network or mechanics. In operations with low-voltage infrastructure, the motor helps stabilise the running of process assemblies and simplifies integration into existing distribution systems.

Winding protection and long-term reliability

VYBO Electric develops its solutions with an emphasis on premium materials and in-house technical development, which is reflected in stable and repeatable operation. The trio of PTC thermistors helps monitor the thermal conditions in the winding and reduces the risk of overheating during demanding cycles. If you need a motor for reliable industrial operation with an emphasis on efficiency, durability and long service life, this model is ready for practical use in modern plants. For an exact match to your technology and application conditions, request a quotation.