Electric motor 55 kW, 990 rpm, 400 V / 690 V, 4LC-280M-6 LV

Operations that have long struggled with high energy consumption need a drive that maintains stable performance without unnecessary losses. The 4LC-280M-6 model with an output of 55 kW is designed for the 900-1000 rpm speed class and helps reduce costs where continuous operation of pumps, fans, compressors and large machines is decisive. As a low-voltage asynchronous electric motor with premium workmanship, it delivers direct operating savings while also providing reserve capacity for more demanding loads.

Energy savings with stable performance in the 900-1000 rpm speed class

With a correctly selected drive, not only lower consumption but also lower thermal stress on the entire line becomes apparent. This energy-saving industrial motor uses parameters that support long-term economy in both production and process units. Rated voltage of 400 V with delta connection and 690 V with star connection allows flexible use according to the supply network, while rated current reaches 97 A at delta 400 V and 56.2 A at star 690 V. Efficiency of 95.1 percent and power factor of 0.84 are especially important in operations where the motor is started and stopped repeatedly or operates under long-term load.

Construction that supports long service life in demanding conditions

The design solution is focused on reliability in industrial use. Starting torque Tst/Tn 2 and breakdown torque Tmax/Tn 2 provide balanced behaviour during start-up and load fluctuations, while the starting current ratio Ist/In 8.5 helps with the design of the power supply and protection elements. Rotor inertia of 2.4 kg*m² supports smoother dynamics during start-up and during process control. Noise level of 83 dB(A) remains within the range commonly used in industrial installations, and 6317-C3 bearings on both the DE and NDE sides increase durability during long service intervals.

• Pumps benefit from stable speeds when pumping water, condensate and process liquids.
• Fans gain a reliable drive for air handling units and extraction systems.
• Compressors use a balanced ratio of power and starting torque.
• Operations with conveyors appreciate smooth power transmission in continuous cycles.
• Agitators work with confidence when the media resistance changes.
• Grinding and cutting machines use the power reserve under process load.
• Reduction gearboxes receive a suitable input drive for stable operation.
• Drying lines benefit from constant operation during long working intervals.
• Pressing technologies gain support during repeated engagements.
• Wood processing uses the motor for robust equipment with higher starting resistance.
• Textile machinery appreciates even power transmission without unnecessary fluctuations.
• Food processing lines can rely on dependable operation in hygiene-demanding segments.
• Heavy process units use a robust drive for long-term deployment.
• Pumping stations gain a motor suitable for continuous operation in low-voltage infrastructure.

Configuration for easier installation and service in industry

The motor is fitted with 2-M63X1.5 cable glands and accessories in the form of 3 PTC thermistors, which makes it easier to protect the winding and connect to the control system. The IEC 280 mm frame simplifies mechanical integration into existing machine assemblies, where compatibility with the installation space and available accessories is important. With a packed weight of 550 kg and dimensions of 1152*652*846 mm, it is advisable to plan handling in advance so that installation takes place safely and without delay. The VYBO Electric brand stands behind a professional range based on in-house development, premium materials and practical experience from industrial operation.

If you need a drive for pumps, fans, compressors or other heavy machines, the 4LC-280M-6 model with an output of 55 kW offers a combination of efficiency, mechanical durability and technical confidence. For a further assessment of suitability for your application, send us a non-binding enquiry and we will be happy to recommend a solution according to the operating conditions.