Three-phase electric motor: H27R-4002-4 630KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4002-4 |
| Rated power (kW) | 630 |
| Frame size (mm) | 400 |
| Number of poles | 4 |
| Rated speed (rpm) | 1489 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 70,9 |
| Efficiency at 100% load (%) | 95,4 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 4041 |
| Locked-rotor torque ratio (LRT/RLT) | 0,90 |
| Breakdown torque ratio (BDT/RLT) | 2,2 |
| Locked-rotor current ratio (LRA/RLA) | 6 |
| Rotor moment of inertia (kg·m²) | 20 |
| Load moment of inertia (kg·m²) | 367 |
| 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 | 2800 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6326-C3/6326-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
The H27R 4002-4-6 design is intended for operations where long-term energy balance is monitored alongside output. This 1500 rpm electric motor with an output of 630 kW, powered at 6000 V, reaches a rated speed of 1489 rpm and, with correctly designed drive equipment, helps keep consumption under control even in continuous operation of large technologies.
The closed cooling circuit with an IC611 air-to-air cooling heat exchanger keeps the motor interior separated from the surrounding environment, which is practical on dusty lines and in corrosive environments. Combined with IE4 Super Premium efficiency, it creates a solution that reduces losses under long-term loading and supports stable operation in energy-intensive tasks. The design also uses VPI impregnation of the stator winding, increasing resistance to moisture, dust and vibration.
On the mechanical side, the motor provides rated torque of 4041 Nm, rated current of 70,9 A, efficiency of 95,4 % and a power factor of 0,9. Rotor inertia of 20,0 kg·m² and load inertia of 367,0 kg·m² are important when designing starting, braking and coordination with the gearbox or driven machine. Insulation class F and temperature rise B help maintain suitable thermal reserve during high-power operation.
Why it is suitable for energy-intensive lines
This high-voltage electric motor is intended for applications where precisely controlled operation under high load and long operating intervals are expected. Thanks to efficiency of 95,4 %, it helps limit energy losses, which is especially noticeable where the motor operates without interruption or for a high annual number of hours. As part of the HV electric motors category, it fits drives requiring stable power supply, durable insulation and suitable cooling without excessive contamination of internal parts.
When designing starting, it is important to account for starting torque reaching 0,9 times the rated torque, breakdown torque 2,2 times the rated torque and starting current 6 times the rated current. These data are essential when selecting the starting system, grid protection and sizing supply cables. In practice, this helps keep the drive within its operating range even when higher torque reserve is needed during technology start-up.
Deployment in heavy industry and OEM assemblies
H27R 4002-4-6, as a four-pole electric motor, is used in assemblies that require a robust platform for high torque, long bearing life and consistent parameters under variable loading. DE bearing 6326-C3 and NDE bearing 6326-C3 support shaft stability in demanding operation. A package weight of 2800 kg is important when planning handling, installation and service access in the plant.
- Main blowers and process fans in large production halls.
- Process-water and cooling-circuit pumps in power generation.
- Compressor assemblies for gas and industrial stations.
- Mills and crushers in cement plants and raw-material processing.
- Rolling and conveyor lines in metallurgical production.
- Mixers and mixing units in the chemical industry.
- OEM drive systems for heavy machinery and modular technologies.
Technical data that matter during integration
When designing the drive, it is worth working with values that affect the complete assembly rather than only the motor itself. A rated speed of 1489 rpm is suitable for equipment requiring a stable operating mode around 1500 rpm, while rated torque of 4041 Nm provides reserve for process peaks. High efficiency together with a power factor of 0,9 simplifies power-supply design and reduces the need for additional compensation measures.
The motor’s thermal management is also proven in practice. IC611 air-to-air cooling helps keep the internal circuit clean, which is advantageous in dusty equipment environments or where an aggressive atmosphere reaches the drive. Together with VPI impregnation of the stator winding, this creates a solution that better withstands vibration, load fluctuations and long service intervals.
Ordering for high-power projects
If you need a drive for a new technological system or a replacement for an existing high-voltage unit, H27R 4002-4-6 offers parameters that can be incorporated directly into project documentation and into protection and power-supply selection. Contact the VYBO Electric team and order the solution today to ensure availability and rapid deployment into production.