Electric motor 55 kW, 740 rpm, 400 V / 690 V, 4LC-315S-8 LV

Electric motor 4LC-315S-8 with an output of 55 kW is designed for operations that need reliable performance in the speed range of 700-750 rpm while also aiming to reduce energy losses in long-term operation. Compared with the standard IE3 class, IE4 efficiency delivers noticeably lower losses, which in practice means more economical running, better thermal behaviour, and a more favourable cost profile in continuous duty. This is a three-phase motor suitable for upgrades where compatibility with low-voltage infrastructure and control of operating costs are important.

Economical running in the 700-750 rpm range for stable industrial operation

In this speed category, the 8-pole electric motor also performs very well, as it provides a balanced ratio between torque and speed for technologies with long operating cycles. The rated speed of 740 rpm supports use in systems where smoothness is important, rather than extreme dynamics. With a rated current of 103 A when connected in triangle at 400 V and 59.7 A in star at 690 V, the motor fits well into existing power systems in production halls, processing lines, and energy-intensive assemblies.

Construction that supports long service life and easier integration

The motor uses a shaft height of 315 mm, which corresponds to a robust design for higher mechanical load and long-term operation in production conditions. The power factor of 0.8 helps with supply design and compensation sizing, while the efficiency of 93.7 per cent confirms super-premium efficiency focused on reducing unused energy. Noise level of 82 dB(A) is suitably controlled in this power class for applications where the working environment of the operator is also monitored. The rotor inertia of 5.5 kg*m² supports predictable drive start-up in technology with a higher system mass.

Safety features and bearing arrangement for demanding conditions

For winding temperature control, the equipment includes 3 PTC thermistors, which help to react in time to thermal load. The DE bearing 6319-C3 and the NDE bearing 6319-C3 provide reliable support for operation with a high level of load. The 2-M63X1.5 cable entries make connection easier when designing switchboards and motor panels. Package dimensions of 1350*750*1040 mm and a package weight of 936 kg are important for handling, storage, and installation planning within technical logistics.

Industrial use in technologies with high operating load

The motor is suitable for production and technological assemblies where a reliable drive is required with emphasis on long service life and stable parameters. The suitability of the solution depends on the nature of the load, starting conditions, and duty cycle, so technical advice from VYBO Electric is recommended during design.

• Pumps for industrial media benefit from stable speed and good thermal reserve during long running periods.
• Fans and blowers benefit from smooth starting and appropriate efficiency in continuous operation.
• Compressor sets gain reliable performance for medium-duty to demanding duty cycles.
• Reducer drives and gearbox units use balanced torque during technological starts.
• Transport lines and conveyors rely on stable operation during material handling in production.
• Mixing equipment benefits from robust mechanical construction and bearing arrangement for continuous load.
• Pumping stations and auxiliary units use suitable parameters for operation within industrial infrastructure.

When replacing an existing drive, with the 4LC-315S-8 motor you can obtain a solution that combines economy, technical reserve, and the ability to be deployed in a production environment with an emphasis on reliability. VYBO Electric develops drives from premium materials and with in-house development so that they support long-term operation in industry, and this electric motor is available from stock, which shortens the time to deployment. Check the suitability of the motor for your application and make use of immediate dispatch when planning the upgrade.