Three-phase electric motor: H17R-450-4 1000KW 6000V 50HZ
| Basic technical data | |
| Motor type | H17R 450-4 |
| Rated power (kW) | 1000 |
| Frame size (mm) | 450 |
| Number of poles | 4 |
| Rated speed (rpm) | 1490 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6 000 |
| Connection | Y |
| Rated current (A) | 111,5 |
| Efficiency at 100% load (%) | 96,2 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 6409 |
| Locked-rotor torque ratio (LRT/RLT) | 0,82 |
| Breakdown torque ratio (BDT/RLT) | 2,7 |
| Locked-rotor current ratio (LRA/RLA) | 6,8 |
| Rotor moment of inertia (kg·m²) | 16 |
| 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 | 5450 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6328-C3/6328-C3 |
| Lubricant | Li based, no.2 class |
The design of H17R-450-C-4-6 delivers compact power for drives that must operate under stable load for long periods. This 1400 rpm electric motor from VYBO Electric combines an output of 1000 kW with an operating reserve valued by designers of large lines as well as maintenance teams in heavy industry. In practice, this means fewer interventions in the operating regime and better integration with process technologies with high power consumption.
Copper rotor for long service life in continuous operation
The motor’s main durability is supported by a copper rotor cage, which reduces conductor losses and handles thermal load better during repeated starts. This solution particularly benefits operations where reliability over long cycles is monitored and where every shutdown directly affects production. Rated torque of 6409 Nm provides support for driving large machines and systems that require smooth energy transfer without unnecessary fluctuations.
Starting load is also important for the operator. The starting torque and starting current ratios are designed so that the motor works with industrial power distribution systems without placing the grid under unnecessarily harsh conditions. Temperature rise class B combined with insulation class F creates conditions for long-term use in environments where the thermal stability of both windings and bearings is monitored.
IE4 efficiency for economical operation of large drives
The IE4 class reduces energy losses where the motor is used as the main source of motion for continuous technology. Efficiency of 96,2 % is beneficial in applications where electrical energy consumption is monitored throughout the season or during multi-shift operation. A power factor of 0,9 helps keep operation within a reasonable reactive power balance and simplifies integration into existing drive-technology power distribution systems in plants with high installed capacity.
In the four-pole electric motor category, this model has the advantage of providing a balanced compromise between speed and torque. This is practical for pumps, compressors, conveyors and technological units where smooth power transmission without excessive mechanical stress is required. The rated speed of 1490 rpm fits operations that need steady running and straightforward coordination with transmission sections.
Frequency selection for projects with both 50 Hz and 60 Hz supply
The frequency selection option makes deployment easier in international projects as well as in plants where technology is operated according to different electrical standards. The customer can therefore use one motor type in locations with different grid practices without unnecessarily redesigning the entire solution. For export-oriented operations, this flexibility is particularly important where spare-parts availability and service consistency are also monitored.
High-voltage electric motor H17R-450-C-4-6 is intended for operations that require reliable connection of the electrical and mechanical sections in continuous mode. A three-phase electric motor of this type supports stability under high power demand while remaining suitable for technologies with higher starting requirements. Thanks to a weight of 5450 kg and rotor moment of inertia of 16,0 kg·m², the motor can be used in solutions designed for robust dynamics of the entire drive.
Bearing arrangement and temperature monitoring for long service intervals
6328-C3 bearings on both the DE and NDE sides support operation under conditions where running accuracy and resistance to radial load are monitored. Combined with temperature monitoring through 6xPT100 in the winding, 1xPT100 in the NDE bearing, 1xPT100 in the DE bearing and a 3xPTC thermistor, maintenance teams gain a better overview of the machine’s thermal condition. An anti-condensation heater also helps keep the motor’s internal environment under control during shutdowns and fluctuations in ambient humidity.
VYBO Electric’s ISO certificates are a natural part of its production and inspection procedures, which is important for projects requiring repeatability of deliveries and a traceable service history. For large factories, this means that the motor is also suitable for environments where documentation, inspection readiness and long-term compatibility with internal plant standards are monitored.
Use in processes with high power demand and continuous load
The motor is suitable for technologies where long-term output without frequent operator intervention is required. It is appropriate for stable processes where even torque transmission and straightforward integration into existing drives are priorities. Thanks to its design, it is prepared for operations with high thermal and mechanical loads.
- Main blower of a high-temperature furnace.
- Raw-water process pump in a chemical plant.
- Compressed-air compressor in a metallurgical plant.
- Drive for a rolling line in a steelworks.
- Crushing mill in cement-production technology.
- Extruder for polymer processing.
- Cooling-tower fan for a power unit.
- Belt conveyor drive in a mine.
- Centrifugal cooling-water pump in a paper mill.
- Agitator for a mixing tank in petrochemical production.
- Briquetting line for metal waste.
- Dust-extraction unit in heavy industry.
Solution for projects where operational stability is decisive
For large process drives, the energy sector and heavy industry, this motor represents a practical solution combining robust design with efficient operation and a service-friendly concept. If you need a model for an application with high load and a long operating cycle, use the VYBO Electric offering and choose a solution with reserve capacity for further development of the technology.

