Electric motor 4 kW, 730 rpm, 400 V / 690 V, 4LC-160M1-8 LV

When the load fluctuates, starts are frequent, and continuous operation is required, drive stability matters. The 4LC-160M1-8 model with an output of 4 kW belongs to the 700-750 rpm speed class and is designed to maintain reliable performance in such operations without unnecessary losses. Its design is based on advanced materials, precise windings, and optimised air gaps, which is especially important in applications where an IE4 electric motor is required, with an emphasis on long service life and energy-efficient operation.

Stable performance in drives requiring low speeds

Nominal speed of 730 rpm together with a shaft height of 160 mm creates a suitable basis for applications where torque, smooth running, and load control are important. The nominal current at delta 400 V connection reaches 9 A and at star 690 V connection 5.2 A, which makes it easier to design for low-voltage infrastructure as well as for operations with switching connections according to the network. The power factor of 0.71 and efficiency of 87.1 % support balanced energy consumption in longer duty cycles.

Technical features for industrial deployment

• The starting torque ratio Tst/Tn 1.8 helps when starting a load with higher resistance.
• The breakdown torque ratio Tmax/Tn 2 provides sufficient reserve when operation fluctuates.
• The starting current ratio Ist/In 7.9 must be taken into account when sizing the switchboard and protection.
• Noise level of 68 dB(A) supports use in production facilities where acoustic load is also monitored.
• Rotor inertia of 0.1 kg*m² contributes to predictable acceleration and run-down of the machine.
• Both DE and NDE bearings of type 6309-2RZC3 increase reliability under long-term mechanical load.
• Accessories in the form of 3 PTC thermistors help protect the winding against thermal overload.
• 2-M40X1.5 cable glands make connection easier in installations with an emphasis on cable management.

Use in demanding industrial operations

This 8-pole electric motor is suitable for pumps, fans, compressors, conveyors, mixers, crushers, reduction drives, and other large machines where service continuity is important. In industrial assemblies for drives for light and heavy industry alike, it helps maintain a balanced performance curve at the nominal speed of 730 rpm. The package weight of 138 kg and package dimensions of 700*420*550 mm also make logistics easier when planning installation and goods receipt.

A solution for installation and operating planning

Thanks to its well-thought-out design and the experience that VYBO Electric has built up over many years of manufacture, the operator gets a motor suitable for repeated starts and long loads. If you need a reliable motor for technology with demands on a precise speed range, this type helps maintain stable operation and simplify service planning. Please request a quotation for a specific application.