Three-phase electric motor: H27R-4004-4 800KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4004-4 |
| Rated power (kW) | 800 |
| Frame size (mm) | 400 |
| Number of poles | 4 |
| Rated speed (rpm) | 1490 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 89,8 |
| Efficiency at 100% load (%) | 95,6 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 5128 |
| Locked-rotor torque ratio (LRT/RLT) | 1,00 |
| Breakdown torque ratio (BDT/RLT) | 2,4 |
| Locked-rotor current ratio (LRA/RLA) | 6,5 |
| Rotor moment of inertia (kg·m²) | 24 |
| Load moment of inertia (kg·m²) | 460 |
| 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 | 2990 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 4004-4-6 provides high operating confidence wherever stable output, control of losses and sensible costs throughout the equipment life are decisive. This 1400 rpm electric motor with an output of 800 kW is designed for deployment in technological systems requiring long-term loading, precise coordination with a gearbox or direct connection to process machines. In practice, it helps reduce service interventions and the energy demands of the complete line, which is important for projects with high operating hours and pressure on energy efficiency.
The design is based on a welded steel frame that provides high rigidity with a more favourable weight balance than cast-iron solutions while simplifying transport and installation of large units. The closed IC611 air-to-air cooling system keeps the motor interior separated from the surrounding environment, increasing usability in dusty or corrosive operations. The rotor cage made of copper strip contributes to lower losses, higher thermal resistance and longer service life under repeated loading.
Precise power supply and torque reserve for demanding starts
When designing the drive, rated current of 89,8 A, a power factor of 0,9 and efficiency of 95,6 % are important because these values affect sizing of power-supply components and protection. Rated torque of 5128 Nm provides sufficient reserve for heavy technological applications, while starting torque reaches 1 times the rated torque, breakdown torque 2,4 times the rated torque and starting current 6,5 times the rated current. Insulation class F and temperature rise B support operation in conditions where long deployment without a reduction in output is expected.
Benefits for OEM projects and large technological systems
For equipment manufacturers and plant operators, repeatable installation, service availability and compatibility with the main process are also important. A package weight of 2990 kg, rotor inertia of 24,0 kg·m² and load inertia of 460,0 kg·m² must be taken into account when designing foundations, lifting and the starting scenario. DE bearing 6326-C3 and NDE bearing 6326-C3 are suitable for robust mounting under industrial loading where long-term operating stability is decisive. This four-pole electric motor is therefore suitable for applications where continuous operation and high availability are expected.
Typical industrial applications
The H27R 4004-4-6 configuration is used in processes where a powerful and reliable source of mechanical power is required.
- Main compressor stations in power generation and the petrochemical industry.
- Fan blocks for flue-gas extraction and process ventilation.
- Pumping units for water-supply and energy systems.
- Mills in cement plants and mineral raw-material processing.
- Conveyors with high starting loads in mining.
- Pressing lines in heavy and metal-processing production.
- Crushers in quarries and aggregate processing.
- Extruders for large plastics operations.
- Mixing equipment in chemical production.
- Compressor drives in refrigeration technologies.
- Textile winders in large production halls.
- Briquetting presses for energy and recycling lines.
- Rotary dryers in biomass and mineral processing.
- Generator drives in backup systems.
- Winding and unwinding stands in metallurgical operations.
Integration into operation with an emphasis on long service life
During implementation, it is worthwhile to check power-supply compatibility, the starting method and spatial options for handling the unit. A high-voltage electric motor in this class is best suited wherever stable output must be combined with resistance to degraded ambient conditions. VYBO Electric supplies a solution that supports long-term operation even at high utilisation and reduces pressure for frequent shutdowns.
If you are planning a new or replacement installation, H27R 4004-4-6 will help control operating costs while maintaining reserve for demanding process regimes. Take advantage of the offer and secure a drive that delivers higher technology availability and lower operating costs.
