Three-phase electric motor: H27R-4502-6 800KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4502-6 |
| Rated power (kW) | 800 |
| Frame size (mm) | 450 |
| Number of poles | 6 |
| Rated speed (rpm) | 992 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 93,3 |
| Efficiency at 100% load (%) | 95,2 |
| Power factor at 100% load | 0,87 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 7702 |
| Locked-rotor torque ratio (LRT/RLT) | 1,00 |
| Breakdown torque ratio (BDT/RLT) | 2,0 |
| Locked-rotor current ratio (LRA/RLA) | 5,5 |
| Rotor moment of inertia (kg·m²) | 40 |
| Load moment of inertia (kg·m²) | 1170 |
| 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 | 4540 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | NU228-C3+6030-C3/NU228-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
By design, the H27R 4502-6-6 is intended for operations where high drive reliability, fewer service interventions and long-term return on investment are expected. This 900 rpm electric motor with an output of 800 kW, 6000 V power supply and rated speed of 992 rpm supports stable operation of large technological units without unnecessary energy losses. In the large-drive category, its solution offers scope for cost savings mainly thanks to high efficiency of 95,2 % and a power factor of 0,87.
Welded steel frame provides strength at lower weight
The H27R-HD-Modular series uses a welded steel frame that combines high rigidity with easier handling during transport and installation of large motors. In practice, this means simpler integration into the machine assembly, better handling of vibration and robust support for long-term loading in heavy industry. The design also supports precise positioning of active components and stability during continuous operation.
IC611 air-to-air cooling increases suitability for demanding conditions
The closed IC611 cooling circuit with a heat exchanger keeps the inside of the motor separated from the surrounding environment, helping operation in dusty, humid or corrosively loaded areas. This concept better protects active components and maintains stable thermal conditions at high output. Industrial applications with higher requirements for operational cleanliness therefore gain a more reliable solution. A high-voltage electric motor in this design naturally fits systems where long service life and controlled thermal stress are decisive.
Starting and rotor parameters help design the drive with reserve
H27R 4502-6-6 is a six-pole electric motor with rated torque of 7702 Nm, starting torque reaches 1 times the rated torque and breakdown torque 2 times the rated torque. Starting current reaches 5,5 times the rated current, so when designing the power supply, protection and starting system it is worthwhile to provide sufficient reserve in the switchboard and cabling. Rotor inertia of 40,0 kg·m² and load inertia of 1170,0 kg·m² give designers an important basis for calculating system dynamics. The rotor cage made of copper strip helps reduce electrical losses and increases thermal resistance under prolonged load.
Structural elements support long service life in heavy operation
The motor is equipped with DE bearing NU228-C3+6030-C3 and NDE bearing NU228-C3, supporting reliable rotor mounting under demanding duty. Insulation class F together with temperature rise class B provides scope for stable operation even under long-term load. For OEM manufacturers of large units, the package weight of 4540 kg is also important, corresponding to a robust solution for industrial installations.
Use in industrial units with high output requirements
This three-phase electric motor is particularly suitable for the following applications:
- Main drives for rolling mills in metallurgical production.
- High-capacity pumping stations for water and power-generation units.
- Compressor systems in the gas and chemical industries.
- Mills and crushing lines in raw-material processing.
- Belt conveyors for mining and material transport.
- Fan units for heavy technological blocks.
- Drive units for mixers and homogenization equipment in cement production.
If you need a power solution for a demanding technological unit, the H27R 4502-6-6 from VYBO Electric offers a combination of mechanical durability, stable cooling and high operating efficiency. Take advantage of the offer and obtain a motor that supports long-term reliability and energy efficiency in your operation.
Optimization for long-term operation and lower costs
The combination of a powerful magnetic circuit, well-designed frame construction and efficient cooling creates a solution that helps limit downtime and service interventions. For large factories and integrators of technological units, it is important that H27R-HD-Modular supports high-availability operation while providing sufficient technical scope for designing the entire drive system.
