Electric motor 90 kW, 2982 rpm, 400 V / 690 V, 4LC-280M-2 LV

When selecting a drive for pumps, fans, compressors and large machines, it is worth choosing a solution that can handle stable operation and higher load without unnecessary downtime. The 4LC-280M-2 400 V / 690 V model with an output of 90 kW belongs to the speed class 2900-3000 rpm, so it is a natural fit where fast start-up, a firm operating point and good energy discipline are important. The design is based on advanced materials and sophisticated windings, which helps keep operation under control even in a more demanding industrial environment. In practice, this is an IE4 electric motor that is suitable for facilities with low-voltage infrastructure and for applications where reliable operation is expected without compromises in efficiency.

Efficiency and stable operation under high load

An efficiency of 95.8% and a power factor of 0.89 help reduce energy losses during long-term loading, which is particularly important in continuous process units. The rated current at the delta 400 V connection is 151 A and at the star 690 V connection is 87.54 A, so the motor can be adapted to the specific supply network and starting strategy. The rated speed of 2982 rpm supports smooth operation in applications where higher speed is required without performance fluctuations. This profile is also suitable for environments where drives for light and heavy industry are combined in a single production line.

Construction that handles vibration and aggressive environments

The all-cast-iron design with an IEC frame size of 280 mm provides robustness that you will appreciate when installing into equipment exposed to vibration, dust or moisture. The sturdy cast-iron construction helps absorb shocks and at the same time supports corrosion resistance, which extends the motor’s usability in aggressive environments. The rotor inertia of 1.2 kg*m² contributes to a smooth start and, when the drive is properly designed, helps stabilise the dynamics of the entire system. Noise of 91 dB(A) needs to be taken into account when designing the installation, especially if the motor is located close to operators or in an enclosed space.

Speed class 2900-3000 rpm for pumps, fans and compressors

This model is well suited to high-speed applications where power needs to be transferred into a stable and repeatable process. The starting torque ratio Tst/Tn of 1.8 and the breakdown torque ratio Tmax/Tn of 2.3 provide sufficient reserve at start-up and during short-term overloads. The starting current ratio Ist/In of 8.5 should be considered when sizing the protection and switchboard, especially in systems with frequent starting. The 2-M63X1.5 cable glands facilitate a robust connection in industrial cabinets, and the DE 6314-C3 and NDE 6314-C3 bearings support long-term mounting reliability.

Accessories and dimensions for easier deployment in a project

The motor is equipped with 3 PTC thermistors, which increases temperature control under load and helps protect the winding under unsuitable conditions. The packaging weight of 562 kg and the packaging dimensions of 1152*652*846 mm are important for planning transport, handling and storage before installation. The 4LC-280M-2 model is therefore suitable for projects where the drive is expected to provide technical reserve, long-term stability and a reliable purchase backed by the in-house research and development of VYBO Electric. If you are looking for a motor for industrial operation with an emphasis on efficiency, durability and service confidence, request a quotation.