Three-phase electric motor: H27R-4502-2 1000KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4502-2 |
| Rated power (kW) | 1000 |
| Frame size (mm) | 450 |
| Number of poles | 2 |
| Rated speed (rpm) | 2986 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 111 |
| Efficiency at 100% load (%) | 96,6 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 3198 |
| Locked-rotor torque ratio (LRT/RLT) | 0,70 |
| Breakdown torque ratio (BDT/RLT) | 3,0 |
| Locked-rotor current ratio (LRA/RLA) | 7 |
| Rotor moment of inertia (kg·m²) | 13,9 |
| Load moment of inertia (kg·m²) | 61 |
| 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 | 4300 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | 6322-C3/6322-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
The design of the H27R 4502-2-6 model is intended for energy-intensive operations where stable running, low losses and long-term output availability are decisive. This high-voltage electric motor with an output of 1000 kW is intended for applications where a 6000 V power supply, high operating discipline and efficient utilisation of installed input power under continuous load are expected.
Thanks to IC611 air-to-air cooling, the motor interior remains separated from the surrounding environment, helping keep the circulating air clean and increasing usability in dusty or corrosive operations. For large drives, it is also important that IE4 Super Premium efficiency reduces energy losses and supports economical continuous operation in engineering, power generation and processing industries.
3000 rpm electric motor for high-efficiency drives
This version of the 3000 rpm electric motor operates at a rated speed of 2986 rpm, rated current of 111 A and rated torque of 3198 Nm. In practice, this means suitable reserve for starting, steady loading and changes in operating mode without unnecessary overheating, while a power factor of 0,9 helps optimise the supply of large consumption points.
- Rated output of 1000 kW for heavy industrial drives.
- Rated speed of 2986 rpm for direct integration into high-speed drive systems.
- Rated current of 111 A for more precise protection and power-supply design.
- Rated torque of 3198 Nm for processes with high mechanical loading.
- Efficiency of 96,6 % for lower operating losses during long cycles.
Mechanical durability increases confidence under continuous load
For machines operating continuously, mechanical balance and the durability of the bearing assembly are also important. DE bearing 6322-C3 and NDE bearing 6322-C3 are sized for high loading, while rotor inertia of 13,9 kg·m² and load inertia of 61,0 kg·m² provide a basis for correct design of starting, stopping and drive safety components.
VPI impregnation of the stator winding strengthens the insulation resistance to moisture, dust and vibration, which is beneficial in technologies with frequent loading and changing ambient conditions. Insulation class F together with temperature rise B provides a robust basis for long winding life with a controlled thermal profile.
Starting parameters support power-supply and protection design
When designing starting, it is necessary to account for starting torque reaching 0,7 times the rated torque, breakdown torque 3 times the rated torque and starting current 7 times the rated current. These data are important when sizing protective components, transformers, cable routes and coordinating with the technological load, especially in systems with high inertia.
This 2-pole electric motor is suitable for operations where direct power transmission to high-speed equipment is expected and reliable coverage of the power reserve without compromising efficiency is required.
Typical industrial deployment
In large factories, this drive is used, for example, in compressor units, fans for power-generation blocks, centrifugal pumps, mills, agitators, crushers, heavily loaded conveyors, drying lines, briquetting presses, extruders, granulation lines, separation units and main technological transmissions in heavy industry. In each of these cases, stable output and a design focused on long operating periods are beneficial.
Design suitable for long-term economical operation
When selecting a process drive, the overall operating discipline of the equipment also matters. A closed cooling circuit, IE4 efficiency, durable winding and robust bearing arrangement create a combination that helps reduce service interventions while maintaining high technology availability. For operators of continuous lines, this is a practical basis for production and maintenance planning.
Within the VYBO Electric portfolio, the H27R 4502-2-6 model belongs among solutions for high-power applications with an emphasis on reliable energy transmission, long service life and efficient cooling. If you need a large drive with clear reserve for industrial loading, order it now to secure rapid deployment into operation.

