Three-phase electric motor: H17R-400-4 500KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 400-4 |
| Rated power (kW) | 500 |
| Frame size (mm) | 400 |
| Number of poles | 4 |
| Rated speed (rpm) | 1487 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 56,7 |
| Efficiency at 100% load (%) | 95,7 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 3211 |
| Locked-rotor torque ratio (LRT/RLT) | 0,86 |
| Breakdown torque ratio (BDT/RLT) | 2,4 |
| Locked-rotor current ratio (LRA/RLA) | 6 |
| Rotor moment of inertia (kg·m²) | 8 |
| Accessories | |
| 6 x PT100 in winding | |
| 1 x PT100 in NDE bearing | |
| 1 x PT100 in DE bearing | |
| Anti-condensation heater 230 V | |
| 3 x PTC thermistor | |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | IM B3 (other designs on request) |
| Duty type | S1 |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC411 |
| Starting method | DOL, VFD, Soft-starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | copper bar |
| Terminal box type | VYBO CB1-HV |
| Operating conditions | |
| Ambient temperature range (°C) | -20 to +40 (-30, +50, +60 optional) |
| Maximum installation altitude | up to 1000 m |
| Weight and surface finish | |
| Approximate weight | 3970 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6326-C3/6326-C3 |
| Lubricant | Li based, no.2 class |
Energy efficiency is a direct operating tool in large drives, and in model H17R-400-A-4-6 with an output of 500 kW it helps keep consumption under control without unnecessary intervention in the power reserve. In practice, this means stable operation during long production cycles, lower thermal losses and a better balance for every kilowatt-hour drawn from the network by the technology. For line operators and OEM integrators alike, it is important that the 1500 rpm electric motor operates here in a regime that fits naturally into continuous production.
IE4 efficiency for long shifts and lower network loading
IE4 Super Premium efficiency is particularly evident where pumps, fans, compressors or conveyor nodes run without interruption. High efficiency helps reduce operating losses and, over the long term, makes planning energy and cooling costs easier. In industrial drives, this is a difference that appears not only in calculations but also in the stability of the entire technological system.
H17R Compact PRO-HV from VYBO Electric is among the solutions designed for environments with higher requirements for reliability and service discipline. The motor has a rated current of 56,7 A, rated speed of 1487 rpm, rated torque of 3211 Nm and a power factor of 0,89, which makes it easier to design both starting and subsequent operation. The four-pole electric motor therefore maintains a smooth load characteristic even in applications where long-term availability and repeatable behaviour are expected.
Compact installation for space-sensitive drives
The compact 6 kV motor is particularly beneficial where the technological system has precisely defined space limits while still needing to deliver full output in H315 to H560 frames. The 400 mm frame size helps when designing an assembly in which not only output but also service access, weight and mounting on the foundation are monitored. With a weight of 3970 kg and rotor moment of inertia of 8,0 kg·m², a robust mechanical design corresponding to heavy-duty operation should be expected.
The 6000 V electric motor is therefore suitable for applications where high voltage is combined with compact layout and a requirement for long intervals without shutdown. The internal design with copper strip in the rotor cage supports mechanical durability during repeated starts and sudden load changes. 6326-C3 bearings on both the DE and NDE sides contribute to stable rotor guidance in operations where reliable mechanics are emphasised.
Frequency selection for OEM integration projects
The option to select the frequency is practical where one design is used in different regions or different technological branches. A version also available for 60 Hz simplifies deployment in export assemblies that need to be prepared without additional structural modifications. In drive technology, this shortens the time between design and commissioning, which is particularly appreciated by teams assembling complete lines or packaged technological blocks.
Insulation class F together with temperature rise B provides suitable conditions for long-term load in demanding environments. This is complemented by accessories in the form of 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing, an anti-condensation heater and 3xPTC thermistors, which make it easier to monitor motor condition during operation and shutdown. VYBO Electric works with ISO certificates as part of the manufacturing and inspection process, not merely as a superficial addition.
Deployment in production processes with high stability requirements
- Main pumping units in chemical production.
- High-pressure fans in energy units.
- Compressor stations for process air in plants.
- Heat-exchanger and recirculation pumps in the paper industry.
- Crushing and mixing lines in cement plants.
- Main conveyor drives in metallurgical operations.
- Extruder assemblies in plastics processing.
- Dewatering units in mining.
- Process mixers in large food-production technologies.
For operations requiring long service life, precise shutdown planning and technical reliability when integrating into the complete system, this high-voltage electric motor remains a practical solution. If efficiency, space requirements and service readiness need to be coordinated, order it as soon as possible and take advantage of availability before the next planned maintenance cycle.

