Three-phase electric motor: H27R-4001-4 560KW 6000V 50HZ
| Basic technical data | |
| Motor type | H27R 4001-4 |
| Rated power (kW) | 560 |
| 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) | 63,1 |
| Efficiency at 100% load (%) | 95,3 |
| Power factor at 100% load | 0,9 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 3592 |
| Locked-rotor torque ratio (LRT/RLT) | 0,90 |
| Breakdown torque ratio (BDT/RLT) | 2,2 |
| Locked-rotor current ratio (LRA/RLA) | 6,1 |
| Rotor moment of inertia (kg·m²) | 18 |
| Load moment of inertia (kg·m²) | 328 |
| 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 | 2740 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 4001-4-6 is designed for operations that need high output with reasonable operating demands and long-term savings in energy and service costs. This 1400 rpm electric motor delivers 560 kW at 6000 V, rated current reaches 63,1 A and rated speed is 1489 rpm, making it suitable for technological nodes requiring stable operation and precise connection to the line’s power balance. Efficiency of 95,3 % and a power factor of 0,9 support economical operation in continuous service.
The design with a welded steel frame provides high rigidity while simplifying handling during transport and installation of large machines. Closed IC611 air-to-air cooling helps keep the motor’s internal circuit clean, which is especially important where dust, aggressive vapours or increased environmental contamination occur. The rotor cage made of copper strip reduces rotor losses and supports thermal resistance under long-term loading. As a high-voltage electric motor, it is suitable for high-voltage industrial drives in operations focused on reliability and repeatable availability.
Power reserve for units with high loading
Rated torque of 3592 Nm provides sufficient reserve for starting and variable process resistance. When designing the power supply and protection, 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 6,1 times the rated current. This behaviour helps designers correctly set circuit breakers, contactor interlocks, frequency-controlled or direct-start modes according to the selected system and available grid reserve. A package weight of 2740 kg also indicates that this is a robust machine intended for rigid foundation solutions.
Bearing stability and operating reliability
6326-C3 bearings on both the DE and NDE sides support long service life under loads typical of large units. Rotor inertia of 18,0 kg·m² and load inertia of 328,0 kg·m² are important when designing acceleration, braking and sizing couplings, especially if the motor operates with frequent mode changes or a heavy technology start. Insulation class F combined with temperature rise B provides sensible thermal reserve for industrial operation with higher loading.
Deployment in operations where availability is decisive
This 4-pole electric motor is suitable wherever a reliable drive with high output and stable speed is required. In practice, it is used in compressor rooms, process-media pumps, fan blocks, crushers, mills, agitators, conveyor systems with high inertia and auxiliary drives in metallurgical and chemical systems. In these applications, consistent power transmission, straightforward cooling and robust construction suitable for long operating cycles are especially valuable.
- Pumping stations with higher conveying capacity and a stable pressure regime.
- Fans for process ventilation and dust extraction.
- Compressors requiring smooth transmission of high power.
- Mills and crushers in cement plants, mining and raw-material processing.
- Mixing and homogenisation units in chemical production.
- Conveyor nodes in metallurgical and logistics operations.
- Units for water treatment and cleaning of process media.
- Auxiliary drives in power generation and large production lines.
If you are planning technology renewal or expansion, take advantage of the H27R 4001-4-6 model and obtain a motor that combines high output, an efficient design and lower long-term operating costs.
Why this motor reduces maintenance requirements
Thanks to the robust frame, closed cooling circuit and well-designed rotor construction, this model is suitable for operations that need to limit unplanned shutdowns. Reliable operation in dusty or corrosive environments reduces the need for frequent cleaning and helps maintain power reserve even during long production runs. For OEM manufacturers of large technological systems, easier integration into the project is also important because the motor offers parameters suitable for high-power units without unnecessary operating compromises.