Three-phase electric motor: H27R-4002-8 400KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4002-8 |
| Rated power (kW) | 400 |
| Frame size (mm) | 400 |
| Number of poles | 8 |
| Rated speed (rpm) | 742 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 49,2 |
| Efficiency at 100% load (%) | 94,7 |
| Power factor at 100% load | 0,83 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 5148 |
| Locked-rotor torque ratio (LRT/RLT) | 1,00 |
| Breakdown torque ratio (BDT/RLT) | 2,0 |
| Locked-rotor current ratio (LRA/RLA) | 5,1 |
| Rotor moment of inertia (kg·m²) | 30 |
| Load moment of inertia (kg·m²) | 1560 |
| 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 | 2785 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6326-C3/6326-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
H27R 4002-8-6 is designed for operations requiring stable output, long service life and lower operating costs under long-term load. This 700 rpm electric motor with an output of 400 kW, voltage of 6000 V and rated speed of 742 rpm helps maintain efficient operation of technological units where reliable torque and a reasonable energy balance are decisive.
The H27R-HD-Modular series design uses a welded steel frame, which provides high rigidity at a favorable weight and facilitates transport and installation of large units in a hall or on site. The closed IC611 air-to-air cooling system keeps the inside of the motor separated from the surroundings, improving operation in dusty, humid or corrosive environments and extending maintenance intervention intervals.
Thanks to efficiency of 94,7 % and a power factor of 0,83, H27R 4002-8-6 is suitable for drives where not only output but also long-term energy efficiency of the entire line is monitored. Insulation class F combined with temperature rise class B provides reserve for stable operation under real industrial load. Rated current of 49,2 A, rated torque of 5148 Nm and starting current at 5,1 times the rated current provide the necessary basis for the design of power supply, protection and starting circuits. Starting torque reaches 1 times the rated torque and breakdown torque 2 times the rated torque, which helps when assessing torque reserve in loads with higher inertia.
700 rpm electric motor for economical operation of heavy technologies
At high outputs, the entire drive life cycle determines return on investment. H27R 4002-8-6 is a high-voltage electric motor that supports lower operating losses while providing reserve for stable operation during long-term use. The rotor cage made of copper strip reduces electrical losses in the rotor, improves thermal resistance and helps maintain parameters during frequent starts or fluctuating loads.
Motors in this series are suitable for operators who need a robust three-phase electric motor for continuous or heavy-duty operation, where service accessibility is also important. 6326-C3 bearings on both the DE and NDE sides support stable rotor mounting and reduce the risk of premature wear under higher dynamic loads. Rotor inertia of 30,0 kg·m² and load inertia of 1560,0 kg·m² are values that help designers precisely assess starting and drive behavior in the real application.
Overview of technical prerequisites for drive design
When designing drive technology, it is an advantage that the H27R 4002-8-6 parameters are prepared for precise sizing of conductors, switching and mechanical connection to the technology. This eight-pole electric motor operates in an area where smooth operating behavior and reliable output at stable speed are important. Rated torque of 5148 Nm is suitable for applications with higher static and dynamic loads where reliability is required both during starting and over a long operating cycle.
Typical applications in large industrial operations
- Main blowers for metallurgical and chemical lines with high continuous-operation requirements.
- Pumping units for water, power-generation and process units with high flow rates.
- Compressor stations requiring stable torque and reliable motor protection.
- Conveyor drives in mining, cement plants and handling of heavy bulk materials.
- Mills and crushers in material processing where torque reserve is decisive.
- Power and OEM technological units requiring a high-voltage solution for integrated drives.
Stable brand support for OEMs and large factories
With the H27R-HD-Modular series, VYBO Electric combines mechanical rigidity, efficient cooling and suitable electrical parameters into a solution that reduces the risk of unplanned downtime. Package weight of 2785 kg reflects robust construction intended for demanding use while remaining manageable for installation with well-prepared logistics and lifting equipment. For operations requiring reliable output, precise parameters and long-term service reliability, H27R 4002-8-6 is a suitable basis for both modernization and new projects.
Take advantage of the offer and obtain a solution that supports long drive life, stable operation and lower total costs in demanding industrial applications.