Three-phase electric motor: H27R-5604-6 2500KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 5604-6 |
| Rated power (kW) | 2500 |
| Frame size (mm) | 560 |
| Number of poles | 6 |
| Rated speed (rpm) | 994 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 6000 |
| Connection | Y |
| Rated current (A) | 281,3 |
| Efficiency at 100% load (%) | 96,1 |
| Power factor at 100% load | 0,89 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 24019 |
| 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) | 144 |
| Load moment of inertia (kg·m²) | 2890 |
| 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 | 8360 kg |
| Colour | RAL7030 |
| Paint finish | shiny |
| Bearings and lubrication | |
| DE/NDE bearings | NU238-C3+6040-C3/NU230-C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
Energy-efficient operation is decisive for large drives, and this is precisely where H27R 5604-6-6 stands out as a 1000 rpm electric motor for demanding process units. With an output of 2500 kW, a 6000 V power supply and a rated speed of 994 rpm, it supports smooth torque transmission even in operations where losses, availability and long-term operating stability are monitored.
IC611 cooling protects the inside of the motor in contaminated environments
The H27R-HD-Modular series uses a closed cooling circuit with an IC611 heat exchanger that keeps the air inside the motor clean and improves suitability for dusty or corrosive environments. Combined with IE4 Super Premium efficiency, energy losses in high-power drives are reduced, supporting economical continuous operation in metallurgy, mining and power generation. This approach is particularly beneficial where high energy efficiency is required without compromising robustness.
VPI impregnation increases winding resistance to vibration and moisture
The stator winding is impregnated using VPI technology, which strengthens resistance to moisture, dust and vibration stress. A high-voltage electric motor of this design is intended for long-term operation with minimal service-discipline requirements in heavy industry. Insulation class F and temperature rise class B provide reliable thermal reserve under steady load.
Starting ratios support power-supply and protection design
Starting parameters are also important for the design of starting and protection: starting torque reaches 0,9 times the rated torque, breakdown torque 2,2 times the rated torque and starting current 6 times the rated current. Rated current of 281,3 A, power factor of 0,89 and efficiency of 96,1 % provide a basis for power-supply sizing and selection of downstream switching and protection equipment.
Mechanical design for high loads and long service life
H27R 5604-6-6 is a six-pole electric motor with a frame size of 560 mm, prepared for the high mechanical demands of large operations. Rotor inertia of 144,0 kg·m² and load inertia of 2890,0 kg·m² help when designing the drive assembly with emphasis on starting dynamics and running stability. Package weight of 8360 kg also reflects the robust design for industrial installations.
Bearings and dynamics match heavy process applications
DE bearing NU238-C3+6040-C3 and NDE bearing NU230-C3 are selected for long-term continuous loading and stable shaft guidance. Such a solution is suitable for operations where high torque of 24019 Nm is transmitted to the drive and consistent operation without unnecessary downtime is expected.
Use in power generation, mining and heavy industry
The motor design is suitable for the following applications:
- Main raw-water pumps in power-generation units.
- Fan stations for dust extraction in metallurgical halls.
- Compressor units for process gas in the chemical industry.
- Ore-processing mills in mining.
- Crushers and screening lines in quarries.
- Rolling and feed drives in metallurgy.
- Transport belts for bulk materials in port terminals.
- Units for driving process agitators in large production lines.
Solution prepared for long-term operating pressure
With the H27R-HD-Modular series, VYBO Electric combines durable construction, efficient cooling and parameters suitable for continuous operation in large enterprises. If you need a motor for a critical drive with emphasis on availability and economy, order H27R 5604-6-6 as soon as possible to secure the deployment date without unnecessary delay.

