Electric motor 450 kW, 740 rpm, 6000 V, H17R 400-D-8-6 MV

In heavy-duty operation, drive stability determines whether the production line runs smoothly or slows down at every load. H17R 400-D-8-6 450 kW is designed for applications where high load, precise operation and long-term durability are expected. It fits naturally into the segment with speeds in the range of 700-750 rpm, because the rated 740 rpm supports a balanced ratio between torque and operational reserve. In practice, this means more stable operation in manufacturing plants, process units and modernisation projects with medium-voltage infrastructure.

Precise speed class for stable performance in the range of 700-750 rpm

This speed class is advantageous where consistent power transmission without unnecessary fluctuations is important. The motor achieves a rated torque of 5807 Nm, a rated current of 56.3 A and an efficiency of 95.3 %, which helps keep the drive energy balance in sensible equilibrium. The power factor of 0.81 corresponds to industrial conditions where not only output is resolved, but also compatibility with the supply system and overall operating discipline. In the H17R 400-D-8-6 450 kW version, this is a medium-voltage asynchronous electric motor, suitable for deployment in areas requiring a robust construction and long service life.

• Power of 450 kW supports heavy drives with high operating load.
• Rated speed of 740 rpm is suitable for continuous process operations.
• Frame size of 400 mm according to IEC makes integration into existing assemblies easier.
• The voltage range can be adapted to 3.3 kV, 6 kV, 10 kV and 11 kV networks.
• Weight of 4310 kg contributes to a rigid and stable mounting platform.

A design that helps handle long loads without unnecessary downtime

When selecting a drive for continuous production, not only the rated value matters, but also how the motor behaves in real operating conditions. H17R 400-D-8-6 450 kW uses insulation class F and temperature rise B, which supports durability under prolonged load. The rotor cage is made of copper bars improves mechanical strength and contributes to reliable starting. The rotor inertia of 16.0 kg·m² provides a suitable dynamic characteristic for drives that need a balanced starting and smooth cooperation with the technology. The main starting parameters, such as Tst/Tn 0.9 %, Tmax/Tn 1.9 % and Ist/In 4.6 %, complete the picture of a drive intended for professional industrial use.

Equipment for condition monitoring and greater operational confidence

The equipment includes PT100 sensors for the windings and bearings, an anti-condensation heater and a set of three PTC thermistors. This solution helps monitor the thermal condition of the motor and reduce the risk of unplanned shutdowns in an environment where high reliability is expected. The DE and NDE bearings of type 6326-C3 support a robust bearing system suitable for industrial loads. Thanks to this design, the motor is also attractive for operations comparing energy-efficient industrial motors with an emphasis on service continuity and the overall service life of the machine.

Industrial applications of the medium-voltage motor

• Pump drives requiring stable rated power.
• Compressor sets in energy and process industries.
• Fan units in process and cooling systems.
• Grinders and crushing lines with high mechanical load.
• Conveyor drives in heavy material production.
• Modernised drive units with medium-voltage connection.
• Operations requiring reliable running in continuous duty.

Dimensioning for supply voltages and easier project integration

The H17R 400-D-8-6 model is designed for a 6000 V supply, and its construction is also sensible when designing assemblies with different medium-voltage levels. The 400 mm frame size and the frame dimension according to IEC make technical integration into existing beds, base frames and replacement solutions during the reconstruction of older drives easier. In practice, this is appreciated by technology suppliers and industrial companies seeking a motor for modernisation without unnecessary adjustments to the connected mechanics. At the same time, VYBO Electric builds on in-house development, premium materials and a professional range prepared for the demanding B2B segment.

If you want to choose a drive with power reserve, high efficiency and parameters suitable for production operation for your project, H17R 400-D-8-6 450 kW is a practical choice for professional deployment. To supplement the technical specification, verify compatibility or arrange delivery, send us an enquiry and we will prepare a solution according to your operation.