Electric motor 45 kW, 1485 rpm, 400 V / 690 V, 4LC-225M-4 LV

Motor 4LC-225M-4, 45 kW is designed for operation in the range 1400-1500 rpm, where in practice torque stability, reasonable power draw and durability under long-term load are decisive. For pumps, fans, compressors and larger drive units in low-voltage distribution systems, it brings a combination of precisely sized output, 95.4% efficiency and a power factor of 0.85. VYBO Electric, for this series, uses in-house development and premium materials so that the motor provides confidence even in demanding continuous operation. From the point of view of integration into the technology, the rated current of 79.2 A at delta 400 V and 45.91 A at Y 690 V is also important, as it makes the design of the switchboard and protection easier.

Economical operation with a greater reserve for long shifts

In this model, the power parameters are combined with a design that helps maintain a thermal reserve even at higher load. 4LC-225M-4, 45 kW has a starting torque ratio Tst/Tn of 2 and a breakdown torque ratio Tmax/Tn of 2.3, which is practical in applications where the load changes slowly or where a confident run-up after start-up is required. The starting current ratio Ist/In of 9 must be taken into account when switching, but with a properly designed drive it provides a robust starting character. Noise at 78 dB(A) remains at a level suitable for technical rooms and machine halls, where a predictable acoustic output is appreciated.

Range 1400-1500 rpm for stable industrial use

The rated speed of 1485 rpm falls within the speed class 1400-1500 rpm, which is often used for drives requiring a constant operating characteristic. This is a suitable solution for technologies where it is important for the electric motor IE4 to maintain high efficiency even during long daily loading. In fans and pumps, this speed class helps to better match the hydraulic or aerodynamic curve with the actual operating point, resulting in smoother operation and lower losses. It is equally useful in conveyors, mixers and machine assemblies where reliable running without unnecessary fluctuations is required.

Design ready for installation and service in operation

The 225 mm frame size provides space for more robust mechanical mounting and for easier integration into existing machine foundations. The DE bearing 6313-C3 and the NDE bearing 6313-C3 support stable rotor guidance, while the rotor inertia of 0.6 kg*m² helps with a smooth start-up and balanced dynamic behaviour. The 2-M50X1.5 cable entries make practical connection in industrial installations easier, and the accessories in the form of 3 PTC thermistors increase winding protection under thermal stress. The packing weight of 358 kg and packing dimensions of 1012*542*596 mm are important for logistics, storage and installation preparation.

Industrial applications of the electric motor

The motor is suitable for drives for light and heavy industry, where the combination of efficiency, reliability and long-term availability of parts is monitored. In practice, it is used for pumps with constant and variable load, for axial and radial fans, for compressors in process lines, for mixers, briquetting and conveyor assemblies, for machining centres, crushers, granulators, separation equipment, press lines, textile machines, packaging technology, water treatment, power generating sets, cooling systems and general industrial machines. In each of these uses, stable operation, good efficiency and resistance to long-term cyclic loading are especially beneficial.

Operating data for safe drive design

When designing the start-up and protection, it is advisable to take the rated current, starting current and the thermal reserve of the system into account. The motor offers 95.4% efficiency, which reduces losses during long-term operation and supports economical running of the entire drive. The power factor of 0.85 is important for network sizing and compensation, especially in assemblies with multiple motor branches. Noise of 78 dB(A) and the mechanical parameters create a balanced basis for reliable integration into the machine, where regular production or continuous technology is expected. For the operator, this means predictable operation with a lower risk of unplanned downtime.

If you are looking for a solution for a machine that has to work efficiently and with a reserve over the long term, this model is a suitable choice for modern industrial use. Thanks to its sophisticated design, high efficiency and the proven background of the VYBO Electric brand, it provides a solid basis for new installations as well as direct replacements in existing assemblies. If you need to check compatibility with your technology, request a quotation.