Electric motor 11 kW, 980 rpm, 400 V / 690 V, 4LC-160L-6 LV

When selecting a motor for pumps, fans, compressors and larger drives, it is worth starting with the duty class, efficiency and grid load. The 4LC-160L-6 model with 400/690 V supply and an output of 11 kW operates in the speed range 900-1000 rpm, which is suitable for stable low-speed industrial applications. Thanks to its IE4 class, it delivers super-premium efficiency that can noticeably reduce energy losses in continuous operation compared with IE3 solutions.

Efficient operation in the speed class 900-1000 rpm

This speed class is suitable where smooth power transmission without unnecessary loss peaks is important. The rated speed of 980 rpm supports use in production lines, water management technologies and technological units with long-term load. The power factor of 0.77 and efficiency of 92.3 % help keep operation economically under control while maintaining reliable output.

A design that supports long service life in demanding environments

The 160 mm frame size and fully cast-iron construction give the motor a solid foundation for use in vibration-stressed operations. The robust cast-iron design helps absorb mechanical vibration and at the same time increases resistance to corrosion, which is especially important in harsher industrial environments. The DE and NDE bearings of type 6309-2RZC3 support stable rotor mounting under long-term load.

Starting and torque reserve for process load

The starting torque with ratio Tst/Tn 2 and the breakdown torque with ratio Tmax/Tn 2.1 provide sufficient reserve for applications with starting resistance. The starting current with ratio Ist/In 8.5 must be taken into account when sizing the switchboard and protection, especially in low-voltage infrastructure. The rated current at delta connection 400 V reaches 21.5 A and at Y 690 V 12.5 A, which makes it easier to adapt the motor to a specific voltage system.

Precise parameters for service and installation

• Noise level 73 dB(A) is suitable for operations where acoustic load is monitored.
• Rotor inertia 0.1 kg*m² helps when assessing starting and run-down dynamics.
• Packing weight 151 kg requires appropriate handling equipment during installation.
• Packing dimensions 822*407*566 mm make transport and storage planning easier.
• Cable glands 2-M40X1.5 allow a technically clean and safe connection.
• Accessory PTC winding protection supports thermal monitoring of the motor.

Use in pumps, fans and other drives

The motor is suitable for applications where a balanced ratio of efficiency, torque and speed is required. In pumping systems it reduces the risk of unnecessary overloading during continuous operation, in fans it helps maintain a stable flow, and in compressors it supports reliable starting in repeated cycles. Air-handling and process units will especially appreciate the robust construction, low-speed character and good operational reserve.

• Pumps benefit from stable operation during long-term fluid transfer.
• Fans benefit from smooth starting and stable speed.
• Compressors gain a torque reserve during start-up and load fluctuations.
• Ventilation units benefit from the low noise level of 73 dB(A).
• Transport systems use the rigid rotor mounting and 160 mm frame.
• Machine assemblies operate reliably under higher mechanical load.
• Pumping stations appreciate the 92.3 % efficiency in long-term operation.
• Cooling technologies use a design intended for stable output.
• Process lines require a motor with controlled starting current.
• Air-handling systems benefit from a durable cast-iron housing.
• Industrial mixers use a torque reserve of 2.1 times rated torque.
• Pressing and dosing equipment gain confidence during repeated starts.
• Operations with low-voltage infrastructure can use the 400/690 V connection according to the grid.

From a technical point of view, this three-phase motor offers a combination of IE4 efficiency, robust cast-iron construction, PTC winding protection and service-friendly bearing arrangement. Thanks to VYBO Electric’s own research and development, we can also take specific operating conditions into account when designing the drive, so that the motor delivers long-term performance with lower losses and reliable operation. If you are planning a new installation or replacing an existing drive, check whether this motor is suitable for your application.