Electric motor 315 kW, 990 rpm, 400 V / 690 V, 4LC-355LX1-6 LV

Compared with IE2 or IE3 solutions, this IE4 class motor delivers noticeably lower losses during long-term operation. The 4LC-355LX1-6 model with an output of 315 kW and a speed range of 900-1000 rpm is designed to reduce the energy load in large operations without compromising operational stability. In practice, this means that 4LC-355LX1-6 helps achieve super premium efficiency, which is especially important where every megawatt hour counts and where the three phase motor is used in continuous cycles. For production lines, process units and low speed industrial applications, this is a solution that supports long term economy without unnecessary power losses.

Efficient operation at a rated 990 rpm under heavy load

The rated speed of 990 rpm naturally fits the segment where smooth power transmission and a stable load characteristic are required. At a rated current of 533 A at delta 400 V and 309 A at star 690 V, the motor provides a robust electrical basis for deployment in large systems. Efficiency of 96.3 % and a power factor of 0.86 support efficient use of the supply network, while the ratio of starting torque Tst/Tn 1.6 and the ratio of maximum torque Tmax/Tn 2 help manage start-up and short-term overload. The ratio of starting current Ist/In 8 is a parameter that designers can take into account when planning the power supply and starting equipment.

Construction that increases durability and service reliability

The frame size according to IEC: 355 mm, together with the all cast iron design, creates a solid platform for long-term operation in production units. The heavy cast iron construction is suitable where resistance to vibration is required and, at the same time, good resistance to corrosive influences. The cable entries 2-M63X1.5 make it easier to connect the power conductors, the DE 6322-C3 and NDE 6322-C3 bearings support reliable operation under demanding load, and the PTC winding protection accessory increases winding safety under thermal stress. Noise level of 94 dB(A) corresponds to a robust industrial category, where operational reliability is the key priority.

Deployment in drives with high availability

The motor is well suited for large pump sets, compressor technologies, conveyors, mixers, crushers, granulators, fans, rolling lines, extruders, pumping stations, process units and production technology modules with continuous load. In each of these applications, the combination of 315 kW output, stable 990 rpm and a design that handles long operating cycles without unnecessary service downtime is important. VYBO Electric adds technical consulting based on its own research and development to such solutions, so the drive design can be adapted to the real operating point and the power supply requirements in your operation.

From a design perspective, this is a motor that combines high efficiency, robust construction and parameters suitable for demanding industrial deployment. If you need to verify sizing, starting conditions or suitability for a specific technology, check the motor suitability for your application and choose a solution that reduces energy losses as well as operational risk.