Three-phase electric motor: H27R-4004-2 800KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4004-2 |
| Rated power (kW) | 800 |
| Frame size (mm) | 400 |
| Number of poles | 2 |
| Rated speed (rpm) | 2984 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 89 |
| Efficiency at 100% load (%) | 96,5 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2560 |
| Locked-rotor torque ratio (LRT/RLT) | 0,80 |
| Breakdown torque ratio (BDT/RLT) | 2,6 |
| Locked-rotor current ratio (LRA/RLA) | 6,6 |
| Rotor moment of inertia (kg·m²) | 8,8 |
| Load moment of inertia (kg·m²) | 77 |
| Accessories | |
| 6 x PT100 in windings | |
| 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 (S2, S3, S4 – S9 optional) |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC611 (On request IC616, IC666) |
| Starting method | DOL, VFD, Soft-starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | copper rotor bars |
| 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 | 3000 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6319-C3/6319-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
H27R 4004-2-6 delivers noticeably lower energy losses and stable performance for large industrial drives in continuous operation. This 2900 rpm electric motor with an output of 800 kW is intended for applications where high efficiency, reliable torque and reserve for long-term loading are decisive. In the VYBO Electric design, it is suitable for operations that want to reduce energy costs without compromising mechanical durability.
The design with IE4 Super Premium efficiency supports economical operation even at high utilisation and also helps limit overheating during long working cycles. The welded steel frame increases overall rigidity while simplifying handling during installation, transport and positioning in technological blocks. This combination is practical for equipment manufacturers and operators that need a robust solution with reasonable service-logistics requirements.
- A rated speed of 2984 rpm provides a suitable operating mode for drives with high dynamics.
- Rated current of 89 A supports the design of the power supply, protection and starting circuits.
- Rated torque of 2560 Nm provides sufficient force reserve for heavily loaded technological lines.
- A power factor of 0,9 supports efficient use of the grid and appropriate switchboard sizing.
- Efficiency of 96,5 % directly reduces losses during long-term operation of large systems.
- Insulation class F together with temperature rise B provides a safe thermal basis for demanding industrial deployment.
- DE bearing 6319-C3 and NDE bearing 6319-C3 increase reliability under radial and operating loads.
- Rotor inertia of 8,8 kg·m² and load inertia of 77,0 kg·m² support calculations of starting and braking modes.
- A package weight of 3000 kg is important when preparing handling, the foundation and lifting equipment.
2900 rpm electric motor for energy-intensive operations
When designing large technologies, it is assumed that the motor must handle stable loading, thermal reserve and repeated starting. Starting torque reaches 0,8 times the rated torque, breakdown torque 2,6 times the rated torque and starting current 6,6 times the rated current, which is important when selecting starting, protection and power-supply components. For this type of drive, it is also worthwhile to verify coordination with variable-frequency drives, soft starters or direct-on-line starting according to the load characteristics.
Typical industrial use in demanding technological systems
This 2-pole electric motor is suitable for equipment where high output and reliable operation during long shifts are required. As a three-phase electric motor, it is suitable for heavy industrial systems where precise design of current, torque and cooling reserve is required. Within the HV electric motors portfolio, it is a solution for customers expecting a robust design and predictable operating behaviour.
- Pumps for pressure and cooling systems in large plants.
- Fans for extraction and process-air systems.
- Compressors for production of process air and technical gases.
- Conveyor lines for bulk materials in cement plants and quarries.
- Mills and crushing units in raw-material processing.
- Rolling and heavy-duty drive units in metallurgy.
- Extruders and mixing lines in the chemical industry.
- Units for the energy sector and auxiliary machinery systems in power plants.
- Pressing stations and forming machines in metal-parts production.
- Large drainage and pumping stations in water management.
Operating confidence during installation and over the long term
The motor is designed for environments where not only efficiency but also thermal supervision and bearing condition are monitored throughout the life cycle. Standard thermal protection and monitoring simplify integration into modern control systems, while readiness for condensation and longer shutdowns is also important for large machines. In practice, this helps reduce the risk of unplanned downtime and simplifies service planning in demanding production.
For OEM manufacturers and operators of large factories, this model is suitable wherever technical reserve and reliable availability of spare parts are decisive. Thanks to a voltage of 6000 V, it performs well in systems with higher distribution voltage and in lines where consistent output without unnecessary energy losses is required. If you need to design a drive for a specific operation, contact us.
